Fixed missing BOM entry for JST connectors.

Fixed default colour for JST connectors. Corrected BOM entry to show right angle options on Molex and pin headers.
Fixed typo in smd_diode(DO214AC) package name.
2025-09-03 20:32:35 +02:00 · 2023-05-08 19:51:29 +01:00 · 2023-05-08 19:42:05 +01:00 · 2023-05-01 12:22:10 +01:00 · 2023-05-01 12:18:12 +01:00 · 2023-05-01 12:14:23 +01:00
88 changed files with 2414 additions and 345 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,175 @@
 This changelog is generated by `changelog.py` using manually added semantic version tags to classify commits as breaking changes, additions or fixes.


+### [v21.4.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.4.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.3.1...v21.4.0 "diff with v21.3.1")
+*   2023-05-01 [`5e24a32`](https://github.com/nophead/NopSCADlib/commit/5e24a32a0b422e8032c3c5d377c1a756ff6f1022 "show commit") [C.P.](# "Chris Palmer") Added ESP32 camera.
+
+*   2023-05-01 [`fbd8d8c`](https://github.com/nophead/NopSCADlib/commit/fbd8d8c7cdff0bd7de0d42aa74bf0ab6551c205b "show commit") [C.P.](# "Chris Palmer") Added `smd_coax`
+
+#### [v21.3.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.3.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.3.0...v21.3.1 "diff with v21.3.0")
+*   2023-04-29 [`b1592f5`](https://github.com/nophead/NopSCADlib/commit/b1592f51d4b16a125d9b28edae56f758fcac2f02 "show commit") [C.P.](# "Chris Palmer") Fixed `bom.py,` `views.py` and `tests.py` so that vitamin descriptions can contain more than one colon.
+
+### [v21.3.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.3.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.2.0...v21.3.0 "diff with v21.2.0")
+*   2023-04-23 [`61fc194`](https://github.com/nophead/NopSCADlib/commit/61fc19499524a2b750d17a90627a697bf626bbf0 "show commit") [C.P.](# "Chris Palmer") Refactored for readability.
+
+*   2023-04-23 [`f8af615`](https://github.com/nophead/NopSCADlib/commit/f8af61568a8362cf470bc9eb8de8323c8fc001c7 "show commit") [C.P.](# "Chris Palmer") Updated images and readme.
+
+*   2023-04-23 [`05d1684`](https://github.com/nophead/NopSCADlib/commit/05d16841c4d48c5c8f453e438af0ff6eb5bffe53 "show commit") [C.P.](# "Chris Palmer") Fixed thread pitch.
+
+*   2023-04-05 [`07e7eb7`](https://github.com/nophead/NopSCADlib/commit/07e7eb77f73fcaab4291388b49781b0e2de5a64c "show commit") [M.B.](# "Martin Budden") Added support for shoulder screws.
+
+### [v21.2.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.2.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.1.2...v21.2.0 "diff with v21.1.2")
+*   2023-04-22 [`5fc70e1`](https://github.com/nophead/NopSCADlib/commit/5fc70e19ac5d320290f4a2151665e83f0829d796 "show commit") [C.P.](# "Chris Palmer") Added SMD Tantalum caps and 0502 and 0402 resistor and capacitors.
+
+#### [v21.1.2](https://github.com/nophead/NopSCADlib/releases/tag/v21.1.2 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.1.1...v21.1.2 "diff with v21.1.1")
+*   2023-03-29 [`1c5d9a8`](https://github.com/nophead/NopSCADlib/commit/1c5d9a8ef5892caf9b2c4d0d84dc3d20eba699d3 "show commit") [C.P.](# "Chris Palmer") Removed utility functions used by `invert()` from documentation as not generally useful.
+
+#### [v21.1.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.1.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.1.0...v21.1.1 "diff with v21.1.0")
+*   2023-03-29 [`d3f0bfc`](https://github.com/nophead/NopSCADlib/commit/d3f0bfc17f82b42f2d81f2d72a54c3f0cc375604 "show commit") [C.P.](# "Chris Palmer") Fixed typo in resistor comment.
+
+### [v21.1.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.1.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.0.1...v21.1.0 "diff with v21.0.1")
+*   2023-03-11 [`18cd33c`](https://github.com/nophead/NopSCADlib/commit/18cd33c66388d4d4e7be664c0f883cff0854524b "show commit") [C.](# "Chris") Fixed typos, corrected vitamin call, added boilerplate, updated images and readme.
+
+*   2023-03-11 [`ebfb330`](https://github.com/nophead/NopSCADlib/commit/ebfb330ac69f4e90de84ecffea94ce067d041031 "show commit") [D.K.](# "Dirkjan Krijnders") Added comments and make holes a `linear_extrude` result
+
+*   2023-03-08 [`c5fab08`](https://github.com/nophead/NopSCADlib/commit/c5fab08a454383b295be2b151fd715ee79b85db3 "show commit") [D.K.](# "Dirkjan Krijnders") Added `photo_interrupter` to the test
+
+*   2023-03-08 [`fecc937`](https://github.com/nophead/NopSCADlib/commit/fecc93746ab80ad1fc74f0fe3465de92ffee7b36 "show commit") [D.K.](# "Dirkjan Krijnders") Added vitamins for photo interrupters
+
+#### [v21.0.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.0.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.0.0...v21.0.1 "diff with v21.0.0")
+*   2023-03-11 [`07da7d8`](https://github.com/nophead/NopSCADlib/commit/07da7d8dc7d3fb769e57a6b9ca86465357007b6c "show commit") [C.](# "Chris") Removed `Python2.7` from `usage.md` as no longer works.
+
+*   2023-03-10 [`5a3bbf9`](https://github.com/nophead/NopSCADlib/commit/5a3bbf967dc967eca4726af517382e7eb875dde1 "show commit") [C.](# "Chris") Fixed broken cover image.
+
+## [v21.0.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.0.0 "show release") Breaking Changes [...](https://github.com/nophead/NopSCADlib/compare/v20.24.0...v21.0.0 "diff with v20.24.0")
+*   2023-03-10 [`9d4d5ab`](https://github.com/nophead/NopSCADlib/commit/9d4d5aba17974e7b5911e723d48d7b9403a4bcb4 "show commit") [C.](# "Chris") `veroboard_assembly()` renamed `veroboard_fastened_assembly()`.
+`veroboard_assembly()` now doesn't include the fasteners.
+
+### [v20.24.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.24.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.23.0...v20.24.0 "diff with v20.23.0")
+*   2023-03-10 [`d939401`](https://github.com/nophead/NopSCADlib/commit/d939401183d12af3452e17aa5b020dab50f8edb0 "show commit") [C.](# "Chris") Added `vero_grid_pos()` function.
+
+*   2023-03-10 [`584542f`](https://github.com/nophead/NopSCADlib/commit/584542f87a27efe06ff3ba597dbaff1f3c32c4fd "show commit") [C.](# "Chris") Added fastons.
+
+*   2023-03-10 [`62372a0`](https://github.com/nophead/NopSCADlib/commit/62372a049b9ac7a0fecebfd3618df91ff6ffa87a "show commit") [C.](# "Chris") The `wire()` module can now draw wires if a path is specified.
+
+*   2023-03-10 [`14698e5`](https://github.com/nophead/NopSCADlib/commit/14698e5203e1e860230ddb3729816730e221f49c "show commit") [C.](# "Chris") Added PTFE heatshrink sleeving.
+
+*   2023-03-10 [`14f6bb5`](https://github.com/nophead/NopSCADlib/commit/14f6bb533a3dcc1d36b2b764906cdca7d8d24484 "show commit") [C.](# "Chris") Added `sleeving_length` to `al_clad_resistor_assembly()`.
+
+*   2023-03-10 [`01e9aae`](https://github.com/nophead/NopSCADlib/commit/01e9aae698f57bac6046d1a04aaa11b0c88006b5 "show commit") [C.](# "Chris") Added `TO220_size()` and `TO220_lead_pos(i,` l).
+
+*   2023-02-04 [`27f9b24`](https://github.com/nophead/NopSCADlib/commit/27f9b242f250c0083344a05527055bb2fbb56f91 "show commit") [C.P.](# "Chris Palmer") Added crystal, transistors, diode and LEDs to Arduino Uno.
+
+*   2023-02-03 [`f07fda7`](https://github.com/nophead/NopSCADlib/commit/f07fda70cdfc743cd2462636fcc1eb13a092f9e4 "show commit") [C.P.](# "Chris Palmer") Wire links can now be sleeved.
+
+*   2023-02-01 [`abf1f1a`](https://github.com/nophead/NopSCADlib/commit/abf1f1ab3f3eddc2f274df649e8481a4117901eb "show commit") [C.P.](# "Chris Palmer") PCB blocks can now have rounded edges for more realistic cans.
+
+*   2023-02-01 [`df06d1f`](https://github.com/nophead/NopSCADlib/commit/df06d1f57fff64cd6da20684f8371da204f69a82 "show commit") [C.P.](# "Chris Palmer") Updated changelog.
+
+### [v20.23.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.23.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.22.0...v20.23.0 "diff with v20.22.0")
+*   2023-02-01 [`470d6d6`](https://github.com/nophead/NopSCADlib/commit/470d6d6216b1cef8ce6cafd4b14300edb62eac4a "show commit") [C.P.](# "Chris Palmer") Started radial components with crystals.
+
+*   2023-02-01 [`0e5e15a`](https://github.com/nophead/NopSCADlib/commit/0e5e15a747fed6b4ef434c9796bef6cb9e658c0e "show commit") [C.P.](# "Chris Palmer") Added SOIC14 package.
+
+*   2023-02-01 [`3f84912`](https://github.com/nophead/NopSCADlib/commit/3f84912e555cd4f7e97e7cac3091260fe969df4c "show commit") [C.P.](# "Chris Palmer") Added `rounded_top_rectangle()`.
+
+### [v20.22.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.22.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.21.0...v20.22.0 "diff with v20.21.0")
+*   2023-01-29 [`01eeafb`](https://github.com/nophead/NopSCADlib/commit/01eeafb2552a4fcc735e85e8d0e7c0855c18be8c "show commit") [C.P.](# "Chris Palmer") Updated images and readme.
+
+*   2023-01-29 [`dd876c8`](https://github.com/nophead/NopSCADlib/commit/dd876c8fc9f2658332c1c3200a6a67e1b78a8f64 "show commit") [C.P.](# "Chris Palmer") Added vertical USB connector to PCB test.
+
+*   2023-01-29 [`ff40a27`](https://github.com/nophead/NopSCADlib/commit/ff40a276e1a37836ab011689e849da76ce19d4a7 "show commit") [C.P.](# "Chris Palmer") Fixed display position in tests.
+
+*   2023-01-29 [`463c620`](https://github.com/nophead/NopSCADlib/commit/463c620cc3053428ecf7ca6360477992b9538978 "show commit") [C.P.](# "Chris Palmer") Made a new row of PCBs in the test.
+
+*   2023-01-29 [`7b1a916`](https://github.com/nophead/NopSCADlib/commit/7b1a9160434f5b000c83f03d39305f73b0bbf646 "show commit") [C.P.](# "Chris Palmer") Fixed vAx1 dimensions, removed flange and repositioned the tongue.
+
+*   2023-01-28 [`de05134`](https://github.com/nophead/NopSCADlib/commit/de051343d01e57b5e0c43a5f8de69eb508bd86ca "show commit") [E.F.](# "Elliot Foster") WiP of an Orange Pi Zero 2 PCB
+
+### [v20.21.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.21.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.20.1...v20.21.0 "diff with v20.20.1")
+*   2023-01-28 [`34719c3`](https://github.com/nophead/NopSCADlib/commit/34719c33607f8720701eb59719af337cb4a1b777 "show commit") [C.P.](# "Chris Palmer") Box shelves now have screws in the corners to hold them down.
+
+*   2023-01-28 [`024439d`](https://github.com/nophead/NopSCADlib/commit/024439d4c2d0f302027d130584cedadb6d9d14a9 "show commit") [C.P.](# "Chris Palmer") Can now specify short inserts to be used for `butt_boxes`.
+
+#### [v20.20.1](https://github.com/nophead/NopSCADlib/releases/tag/v20.20.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v20.20.0...v20.20.1 "diff with v20.20.0")
+*   2023-01-28 [`005c112`](https://github.com/nophead/NopSCADlib/commit/005c112ba9fc210f88fa82cf638108dbe0b20f26 "show commit") [C.P.](# "Chris Palmer") Added values to the SMD capacitors on the example PCB.
+
+*   2023-01-28 [`dfbcbf8`](https://github.com/nophead/NopSCADlib/commit/dfbcbf84ab57a2c70aaf5b1fa26668278b6993d3 "show commit") [C.P.](# "Chris Palmer") Changed OpenGrab link as `nicadrone.com` has gone.
+
+### [v20.20.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.20.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.19.1...v20.20.0 "diff with v20.19.1")
+*   2023-01-24 [`e7e9313`](https://github.com/nophead/NopSCADlib/commit/e7e9313e71fb2b30aca142ceded2dc5615695071 "show commit") [C.P.](# "Chris Palmer") Updated images and readme.
+
+*   2023-01-23 [`dab06ce`](https://github.com/nophead/NopSCADlib/commit/dab06ce4ca771787aa625d1370b4f2b779580315 "show commit") [E.F.](# "Elliot Foster") Add Raspberry Pi 3 A+ to pcbs
+
+#### [v20.19.1](https://github.com/nophead/NopSCADlib/releases/tag/v20.19.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v20.19.0...v20.19.1 "diff with v20.19.0")
+*   2023-01-24 [`494002a`](https://github.com/nophead/NopSCADlib/commit/494002aebeda560e65ca4f8cb3794707487a3c2a "show commit") [C.P.](# "Chris Palmer") Added test to MP1584EN PCB.
+
+*   2023-01-24 [`77e948f`](https://github.com/nophead/NopSCADlib/commit/77e948f43c911442211bcbf6d1b1520184d2c70b "show commit") [C.P.](# "Chris Palmer") Added can bus connectors to OpenGrab model.
+Tweaked some PCB component positions.
+
+*   2023-01-24 [`543cdb4`](https://github.com/nophead/NopSCADlib/commit/543cdb4e01d38308a06d4368ebabadb85c696567 "show commit") [C.P.](# "Chris Palmer") Incresed the clearance of holes made for pin header.
+
+### [v20.19.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.19.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.18.1...v20.19.0 "diff with v20.18.1")
+*   2023-01-12 [`ebd50ba`](https://github.com/nophead/NopSCADlib/commit/ebd50bae535283b94b310ee74c9b98b2e3b7f8be "show commit") [C.P.](# "Chris Palmer") Added SMD diodes, inductors and potentiometers.
+Complete set of components added to MP1584EN buck regulator.
+
+#### [v20.18.1](https://github.com/nophead/NopSCADlib/releases/tag/v20.18.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v20.18.0...v20.18.1 "diff with v20.18.0")
+*   2023-01-07 [`ec3e752`](https://github.com/nophead/NopSCADlib/commit/ec3e752fc5b5586ef5ac838c709ab4b704dac817 "show commit") [C.](# "Chris") Added missing documentation for `hinge_female()` module.
+
+### [v20.18.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.18.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.17.0...v20.18.0 "diff with v20.17.0")
+*   2023-01-07 [`8587d52`](https://github.com/nophead/NopSCADlib/commit/8587d52d1b87dc9932c7e458798d4a6f3722a371 "show commit") [C.](# "Chris") Added `screw_keyhole()` module.
+
+### [v20.17.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.17.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.16.0...v20.17.0 "diff with v20.16.0")
+*   2023-01-07 [`cec8c3a`](https://github.com/nophead/NopSCADlib/commit/cec8c3a107b81f8badb4e2077a318cc36fcdd481 "show commit") [C.](# "Chris") Added printed LED bezels.
+
+### [v20.16.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.16.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.15.2...v20.16.0 "diff with v20.15.2")
+*   2023-01-07 [`848dcb8`](https://github.com/nophead/NopSCADlib/commit/848dcb86b9f1d9a164366208da76faea6d6050f1 "show commit") [C.](# "Chris") Added 8mm LED.
+
+#### [v20.15.2](https://github.com/nophead/NopSCADlib/releases/tag/v20.15.2 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v20.15.1...v20.15.2 "diff with v20.15.1")
+*   2023-01-07 [`a31f6f1`](https://github.com/nophead/NopSCADlib/commit/a31f6f100ce18168594b02a25d5229536f02a65c "show commit") [C.](# "Chris") Revised LED dimensions.
+
+*   2023-01-07 [`b3dd635`](https://github.com/nophead/NopSCADlib/commit/b3dd635889f7ed4f779ee9408ff81ac64cb1f7ec "show commit") [C.](# "Chris") Fixed duplicated `dxf()` calls in printed box and `butt_box`.
+Client code now calls `dxf()` so that the generated files can be used to speed up assembly views.
+
+#### [v20.15.1](https://github.com/nophead/NopSCADlib/releases/tag/v20.15.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v20.15.0...v20.15.1 "diff with v20.15.0")
+*   2022-12-06 [`e256801`](https://github.com/nophead/NopSCADlib/commit/e256801206189eafcf020cc7fdb50fff4314c397 "show commit") [C.P.](# "Chris Palmer") Added comment to indicate the `.py` suffix may be needed on linux and OSX.
+
+### [v20.15.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.15.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.14.1...v20.15.0 "diff with v20.14.1")
+*   2022-12-05 [`9dc8062`](https://github.com/nophead/NopSCADlib/commit/9dc8062befa72c6650b17d34428bfe39e709fdc2 "show commit") [M.W.](# "Marek Wodzinski") Include `terminal.scad` in `lib.scad` to allow use of `terminal_block()`.
+
+#### [v20.14.1](https://github.com/nophead/NopSCADlib/releases/tag/v20.14.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v20.14.0...v20.14.1 "diff with v20.14.0")
+*   2022-10-20 [`f2313a3`](https://github.com/nophead/NopSCADlib/commit/f2313a3f0ccbb130a7bd974b9a02f5ef6841f39e "show commit") [D.](# "drf5n") update `nuts.scad` table comment
+
+ * Change comment about nut sizes from radius to diameter.
+
+*   2022-09-29 [`d95e1e6`](https://github.com/nophead/NopSCADlib/commit/d95e1e64edba4ef51852a1e72d00497154c80c88 "show commit") [C.](# "Chris") Udated changelog.
+
+### [v20.14.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.14.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.13.0...v20.14.0 "diff with v20.13.0")
+*   2022-09-29 [`f1737d2`](https://github.com/nophead/NopSCADlib/commit/f1737d257b54957772ab6faea102f8ddb829119b "show commit") [C.](# "Chris") Updated images and readme.
+
+*   2022-09-27 [`ce258d6`](https://github.com/nophead/NopSCADlib/commit/ce258d6d4f1de5fbdda76a78b0ad2cbf1b41a3f9 "show commit") [J.R.](# "Jeroen Roos") Leadnuts: add nuthousing
+
+### [v20.13.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.13.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.12.0...v20.13.0 "diff with v20.12.0")
+*   2022-09-27 [`ec85cc5`](https://github.com/nophead/NopSCADlib/commit/ec85cc5d4c76baedae670a5652194bd1799a7094 "show commit") [C.](# "Chris") Updated images and readme.
+
+*   2022-09-24 [`fb66954`](https://github.com/nophead/NopSCADlib/commit/fb6695471f935057a0949e55f70a39911ac81f4c "show commit") [J.R.](# "Jeroen Roos") Shaft coupling: Add flexible SC `/` 6x8 flexible SC
+
+ * Added the possibility for shaft couplings to be flexible and added a 6x8
+example of such a coupling.
+
+### [v20.12.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.12.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.11.0...v20.12.0 "diff with v20.11.0")
+*   2022-09-27 [`c9ac393`](https://github.com/nophead/NopSCADlib/commit/c9ac393c0c7b025b3e6ad9e1030d1b13f8b879c3 "show commit") [C.](# "Chris") Printed corner blocks now have a `short_insert` option.
+
+*   2022-09-27 [`208334a`](https://github.com/nophead/NopSCADlib/commit/208334a585ed0605bf7dbaab1050c060aa15edb7 "show commit") [C.](# "Chris") Printed box now has a short insert option.
+
+*   2022-09-27 [`3a17b89`](https://github.com/nophead/NopSCADlib/commit/3a17b89d5ceb69834b23ff6bc46523f2dfb15f99 "show commit") [C.](# "Chris") Added short inserts and M5 inserts.
+`screw_insert()` now takes a short flag.
+`screw_length()` can now be passed an insert object.
+
+*   2022-09-25 [`0f36c02`](https://github.com/nophead/NopSCADlib/commit/0f36c02b5e34b0b45d258ff8e6ed4536f0601d92 "show commit") [C.](# "Chris") Added `layer_height0` global variable and updated `round_to_layer()` to handle it.
+
+ * Moved functions from `global_defs.scad` to `global.scad` so they get documented.
+
 ### [v20.11.0](https://github.com/nophead/NopSCADlib/releases/tag/v20.11.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v20.10.3...v20.11.0 "diff with v20.10.3")
 *   2022-08-30 [`c1e4625`](https://github.com/nophead/NopSCADlib/commit/c1e4625382646faf6a00e78ac01e495a88169b35 "show commit") [C.](# "Chris") Replaced generic chips with SOIC8.
 Updated images and readme.
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -2,7 +2,7 @@

 ## Requirements
 1. OpenSCAD 2021.01 or later, download it from here: https://www.openscad.org/downloads.html
-1. Python 2.7+ or 3.6+ from https://www.python.org/downloads/
+1. Python 3.6+ from https://www.python.org/downloads/
 1. ImageMagick 7 www.imagemagick.org

 These are all cross platform tools so NopSCADlib should work on any platform that supports them, although it has currently only been tested on Win7.
@@ -28,6 +28,8 @@ by downloading https://github.com/nophead/NopSCADlib/archive/master.zip and unzi

 The `NopSCADlib/scripts` directory needs to be added to the executable search path, `PATH` on Windows and `path` on Linux and Mac.

+Note that on Linux and OSX the full file name including the `.py` will be needed.
+
 The installation can be tested by opening `NopSCADlib/libtest.scad` in the OpenSCAD GUI. It should render all the objects in the library in about 1 minute.

 Running `tests` from the command line will run all the tests in the `tests` directory and build the `readme.md` catalog for GitHub and render it to `readme.html`
--- a/lib.scad
+++ b/lib.scad
@@ -37,6 +37,7 @@ include <vitamins/components.scad>
 include <vitamins/displays.scad>
 include <vitamins/extrusions.scad>
 include <vitamins/extrusion_brackets.scad>
+include <vitamins/fastons.scad>
 include <vitamins/geared_steppers.scad>
 include <vitamins/hot_ends.scad>
 include <vitamins/inserts.scad>
@@ -48,6 +49,7 @@ include <vitamins/magnets.scad>
 include <vitamins/mains_sockets.scad>
 include <vitamins/modules.scad>
 include <vitamins/panel_meters.scad>
+include <vitamins/photo_interrupters.scad>
 include <vitamins/pillars.scad>
 include <vitamins/pillow_blocks.scad>
 include <vitamins/pin_headers.scad>
@@ -63,6 +65,7 @@ include <vitamins/spools.scad>
 include <vitamins/ssrs.scad>
 include <vitamins/stepper_motors.scad>
 include <vitamins/swiss_clips.scad>
+include <vitamins/terminal.scad>
 include <vitamins/toggles.scad>
 include <vitamins/transformers.scad>
 include <vitamins/tubings.scad>
@@ -98,3 +101,4 @@ use <utils/round.scad>
 use <utils/offset.scad>
 use <utils/sector.scad>
 use <utils/thread.scad>
+use <vitamins/photo_interrupter.scad>
--- a/libtest.png
+++ b/libtest.png
--- a/libtest.scad
+++ b/libtest.scad
@@ -63,6 +63,7 @@ use <tests/drag_chain.scad>
 use <tests/extrusions.scad>
 use <tests/extrusion_brackets.scad>
 use <tests/fans.scad>
+use <tests/fastons.scad>
 use <tests/fuseholder.scad>
 use <tests/geared_steppers.scad>
 use <tests/hot_ends.scad>
@@ -74,6 +75,7 @@ use <tests/LDRs.scad>
 use <tests/LEDs.scad>
 use <tests/light_strips.scad>
 use <tests/linear_bearings.scad>
+use <tests/LED_bezel.scad>
 use <tests/LED_meters.scad>
 use <tests/magnets.scad>
 use <tests/microswitches.scad>
@@ -83,6 +85,7 @@ use <tests/o_ring.scad>
 use <tests/opengrab.scad>
 use <tests/panel_meters.scad>
 use <tests/PCBs.scad>
+use <tests/photo_interrupters.scad>
 use <tests/pillars.scad>
 use <tests/pillow_blocks.scad>
 use <tests/potentiometers.scad>
@@ -149,6 +152,9 @@ cable_grommets_y = 0;
 translate([x5, cable_grommets_y])
    cable_grommets();

+translate([x5, cable_grommets_y + 30])
+    led_bezels();
+
 translate([x5 + 50, cable_grommets_y])
    ribbon_clamps();

@@ -211,7 +217,7 @@ translate([950, box_y])
    box_test();


-translate([950, 1400])
+translate([950, 1525])
    rotate(-90)
        bbox_test();

@@ -219,7 +225,7 @@ inserts_y = 0;
 nuts_y = inserts_y + 20;
 washers_y = nuts_y + 120;
 screws_y = washers_y + 120;
-circlips_y = screws_y + 160;
+circlips_y = screws_y + 180;
 springs_y = circlips_y + 20;
 o_rings_y = springs_y;
 sealing_strip_y = springs_y + 20;
@@ -232,7 +238,7 @@ linear_bearings_y = leadnuts_y + 50;
 steppers_y = linear_bearings_y + 110;
 sheets_y = steppers_y + 55;
 pcbs_y = sheets_y + 60;
-displays_y = pcbs_y + 140;
+displays_y = pcbs_y + 265;
 fans_y = displays_y + 110;
 transformers_y = fans_y + 120;
 psus_y = transformers_y + 190;
@@ -279,6 +285,9 @@ translate([x0, pulleys_y])
 translate([x0, leadnuts_y])
    leadnuts();

+translate([x0 + 120, leadnuts_y])
+    leadnuthousings();
+
 translate([x0, linear_bearings_y]) {
    linear_bearings();
    rods();
@@ -329,9 +338,10 @@ leds_y = 0;
 carriers_y = leds_y + 40;
 magnets_y = carriers_y + 40;
 spades_y = magnets_y + 20;
-buttons_y = spades_y + 20;
-jacks_y = buttons_y + 40;
-microswitches_y = jacks_y + 40;
+fastons_y = spades_y + 20;
+buttons_y = fastons_y + 20;
+jacks_y = buttons_y + 30;
+microswitches_y = jacks_y + 30;
 rockers_y = microswitches_y + 40;
 toggles_y = rockers_y + 60;
 components_y = toggles_y + 40;
@@ -357,6 +367,9 @@ translate([x2 + 70, leds_y])
 translate([x2, spades_y])
    spades();

+translate([x2, fastons_y])
+    fastons();
+
 translate([x2,  buttons_y])
    buttons();

@@ -389,21 +402,21 @@ extrusions_y = panel_meters_y + 80;
 translate([x3, veroboard_y])
    veroboard_test();

-translate([x3 + 60, veroboard_y + 20])
+translate([x3 + 50, veroboard_y + 20])
    geared_steppers();

 translate([x3 + 160, ssrs_y])
    pcb_mounts();

-translate([x3 + 170, veroboard_y + 16])
+translate([x3 + 145, veroboard_y + 16])
    cameras();

+translate([x3 + 145, d_connectors_y - 10])
+    camera_housings();
+
 translate([x3, d_connectors_y])
    d_connectors();

-translate([x3 + 170, d_connectors_y - 10])
-    camera_housings();
-
 translate([x3, iecs_y])
    iecs();

@@ -416,6 +429,9 @@ translate([x3 + 60, modules_y])
 translate([x3 + 90, modules_y])
    modules();

+translate([x3 + 150, modules_y])
+    photo_interrupters();
+
 translate([x3, ssrs_y]) {
    ssrs();

--- a/printed/box.scad
+++ b/printed/box.scad
@@ -453,8 +453,6 @@ module box_screw_hole_positions(type) {
 }

 module box_base_blank(type) { //! Generates a 2D template for the base sheet
-    dxf(str(box_name(type), "_base"));
-
    difference() {
        sheet_2D(box_base_sheet(type), box_width(type), box_depth(type), box_sheet_r(type));

@@ -464,8 +462,6 @@ module box_base_blank(type) { //! Generates a 2D template for the base sheet
 }

 module box_top_blank(type) {  //! Generates a 2D template for the top sheet
-    dxf(str(box_name(type), "_top"));
-
    difference() {
        sheet_2D(box_top_sheet(type), box_width(type), box_depth(type), box_sheet_r(type));

@@ -478,18 +474,19 @@ function subst_sheet(type, sheet) =
    let(s = box_sheets(type))
        sheet ? assert(sheet_thickness(sheet) == sheet_thickness(s)) sheet : s;

-module box_shelf_blank(type, sheet = false) { //! Generates a 2D template for a shelf sheet
-    dxf(str(box_name(type), "_shelf"));
-
+module box_shelf_blank(type, sheet = false, wall = undef) { //! Generates a 2D template for a shelf sheet
    difference() {
        sheet_2D(subst_sheet(type, sheet), box_width(type) - bezel_clearance, box_depth(type) - bezel_clearance, 1);

        offset(bezel_clearance / 2)
            box_corner_quadrants(type, box_width(type), box_depth(type));
+
+        box_shelf_screw_positions(type, [], 0, wall)
+            drill(screw_clearance_radius(box_shelf_screw(type)), 0);
    }
 }

-module box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = undef) { //! Place children at the shelf screw positions
+module box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = undef, top_screws = true) { //! Place children at the shelf screw positions
    w = is_undef(wall) ? box_wall(type) : wall;
    insert = box_shelf_insert(type);
    translate_z(-insert_boss_radius(insert, w))
@@ -497,13 +494,22 @@ module box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = un
            multmatrix(p)
                translate_z(thickness)
                    children();
+
+    r = box_boss_r(type);
+    inset = box_intrusion(type) - r + (r + insert_boss_radius(insert, w) + bezel_clearance / 2) / sqrt(2);
+    if(top_screws)
+        translate_z(thickness)
+            for(x = [-1, 1], y = [-1, 1])
+                translate([x * (box_width(type) / 2 - inset), y * (box_depth(type) / 2 - inset)])
+                    rotate(45 * x * (2 + y))
+                        children();
 }

 module box_shelf_bracket(type, screw_positions, wall = undef) { //! Generates a shelf bracket, the first optional child is a 2D cutout and the second 3D cutouts
    w = is_undef(wall) ? box_wall(type) : wall;
    insert = box_shelf_insert(type);
    lip = 2 * insert_boss_radius(insert, w);
-    width = insert_length(insert) + w;
+    width = max(insert_length(insert) + w, lip);

    module shape()
        difference() {
@@ -579,50 +585,44 @@ module box_shelf_bracket_section(type, rows, cols, x, y) { //! Generates section
            children();
 }

-module box_left_blank(type, sheet = false) { //! Generates a 2D template for the left sheet, `sheet` can be set to override the type
-    dxf(str(box_name(type), "_left"));
-
+module box_left_blank(type, sheet = false) //! Generates a 2D template for the left sheet, `sheet` can be set to override the type
    sheet_2D(subst_sheet(type, sheet), box_depth(type) - sheet_reduction(type), box_height(type) - sheet_reduction(type), 1);
-}
-
-module box_right_blank(type, sheet = false) { //! Generates a 2D template for the right sheet, `sheet` can be set to override the type
-    dxf(str(box_name(type), "_right"));

+module box_right_blank(type, sheet = false) //! Generates a 2D template for the right sheet, `sheet` can be set to override the type
    sheet_2D(subst_sheet(type, sheet), box_depth(type) - sheet_reduction(type), box_height(type) - sheet_reduction(type), 1);
-}
-
-module box_front_blank(type, sheet = false) { //! Generates a 2D template for the front sheet, `sheet` can be set to override the type
-    dxf(str(box_name(type), "_front"));

+module box_front_blank(type, sheet = false) //! Generates a 2D template for the front sheet, `sheet` can be set to override the type
    sheet_2D(subst_sheet(type, sheet), box_width(type) - sheet_reduction(type), box_height(type) - sheet_reduction(type), 1);
-}
-
-module box_back_blank(type, sheet = false) { //! Generates a 2D template for the back sheet, `sheet` can be set to override the type
-    dxf(str(box_name(type), "_back"));

+module box_back_blank(type, sheet = false) //! Generates a 2D template for the back sheet, `sheet` can be set to override the type
    sheet_2D(subst_sheet(type, sheet), box_width(type) - sheet_reduction(type), box_height(type) - sheet_reduction(type), 1);
-}

 module box_base(type)   //! Default base, can be overridden to customise
    render_2D_sheet(box_base_sheet(type))
-        box_base_blank(type);
+        dxf(str(box_name(type), "_base"))
+            box_base_blank(type);

 module box_top(type)    //! Default top, can be overridden to customise
    render_2D_sheet(box_top_sheet(type))
-        box_top_blank(type);
+        dxf(str(box_name(type), "_top"))
+            box_top_blank(type);

 module box_back(type)   //! Default back, can be overridden to customise
    render_2D_sheet(box_sheets(type))
-        box_back_blank(type);
+        dxf(str(box_name(type), "_back"))
+            box_back_blank(type);

 module box_front(type)  //! Default front, can be overridden to customise
    render_2D_sheet(box_sheets(type))
-        box_front_blank(type);
+        dxf(str(box_name(type), "_front"))
+            box_front_blank(type);

 module box_left(type)   //! Default left side, can be overridden to customise
    render_2D_sheet(box_sheets(type))
-        box_left_blank(type);
+        dxf(str(box_name(type), "_left"))
+            box_left_blank(type);

 module box_right(type) //! Default right side, can be overridden to customise
    render_2D_sheet(box_sheets(type))
-        box_right_blank(type);
+        dxf(str(box_name(type), "_right"))
+            box_right_blank(type);
--- a/printed/butt_box.scad
+++ b/printed/butt_box.scad
@@ -51,9 +51,10 @@ function bbox_name(type)       = type[8]; //! Optional name if there is more tha
 function bbox_skip_blocks(type)= type[9]; //! List of fixing blocks to skip, used to allow a hinged panel for example
 function bbox_star_washers(type)= type[10];//! Set to false to remove star washers.
 function bbox_thin_blocks(type) = type[11];//! Set for 2 screw blocks instead of three hole fixing blocks.
+function bbox_short_inserts(type)= type[12];//! Set to use short inserts in the blocks

-function bbox(screw, sheets, base_sheet, top_sheet, span, size, name = "bbox", skip_blocks = [], star_washers = true, thin_blocks = false) = //! Construct the property list for a butt_box
- [ screw, sheets, base_sheet, top_sheet, span, size.x, size.y, size.z, name, skip_blocks, star_washers, thin_blocks ];
+function bbox(screw, sheets, base_sheet, top_sheet, span, size, name = "bbox", skip_blocks = [], star_washers = true, thin_blocks = false, short_inserts = false) = //! Construct the property list for a butt_box
+ [ screw, sheets, base_sheet, top_sheet, span, size.x, size.y, size.z, name, skip_blocks, star_washers, thin_blocks, short_inserts ];

 function bbox_volume(type) = bbox_width(type) * bbox_depth(type) * bbox_height(type) / 1000000; //! Internal volume in litres
 function bbox_area(type) = let(w =  bbox_width(type), d = bbox_depth(type), h = bbox_height(type)) //! Internal surface area in m^2
@@ -78,7 +79,8 @@ function corner_block_positions(type) = let(
          rotate([z > 0 ? 180 : 0, 0, corner * 90 + (z > 0 ? 90 : 0)])
    ];

-function corner_holes(type) = [for(p = corner_block_positions(type), q = corner_block_holes(bbox_screw(type))) p * q];
+function corner_holes(type) = let(short = bbox_short_inserts(type))
+    [for(p = corner_block_positions(type), q = corner_block_holes(bbox_screw(type), short_insert = short)) p * q];

 function fixing_block_positions(type) = let(
        width = bbox_width(type),
@@ -112,7 +114,8 @@ function fixing_block_positions(type) = let(

 function side_holes(type) = let(
    screw = bbox_screw(type),
-    holes = bbox_thin_blocks(type) ? 2screw_block_holes(screw) : fixing_block_holes(screw))
+    short = bbox_short_inserts(type),
+    holes = bbox_thin_blocks(type) ? 2screw_block_holes(screw, short_insert = short) : fixing_block_holes(screw))
        [for(p = fixing_block_positions(type), q = holes) p * q];

 module bbox_drill_holes(type, t)
@@ -120,8 +123,6 @@ module bbox_drill_holes(type, t)
        drill(screw_clearance_radius(bbox_screw(type)), 0);

 module bbox_base_blank(type) { //! 2D template for the base
-    dxf(str(bbox_name(type), "_base"));
-
    difference() {
        sheet_2D(bbox_base_sheet(type), bbox_width(type), bbox_depth(type), 1);

@@ -130,8 +131,6 @@ module bbox_base_blank(type) { //! 2D template for the base
 }

 module bbox_top_blank(type) { //! 2D template for the top
-    dxf(str(bbox_name(type), "_top"));
-
    t = sheet_thickness(bbox_sheets(type));

    difference() {
@@ -147,8 +146,6 @@ function subst_sheet(type, sheet) =
        sheet ? assert(sheet_thickness(sheet) == sheet_thickness(s)) sheet : s;

 module bbox_left_blank(type, sheet = false) { //! 2D template for the left side
-    dxf(str(bbox_name(type), "_left"));
-
    t = sheet_thickness(bbox_sheets(type));
    bb = sheet_thickness(bbox_base_sheet(type));

@@ -161,8 +158,6 @@ module bbox_left_blank(type, sheet = false) { //! 2D template for the left side
 }

 module bbox_right_blank(type, sheet = false) { //! 2D template for the right side
-    dxf(str(bbox_name(type), "_right"));
-
    t = sheet_thickness(bbox_sheets(type));
    bb = sheet_thickness(bbox_base_sheet(type));

@@ -175,8 +170,6 @@ module bbox_right_blank(type, sheet = false) { //! 2D template for the right sid
 }

 module bbox_front_blank(type, sheet = false, width = 0) { //! 2D template for the front
-    dxf(str(bbox_name(type), "_front"));
-
    t = sheet_thickness(bbox_sheets(type));
    bb = sheet_thickness(bbox_base_sheet(type));
    bt = sheet_thickness(bbox_top_sheet(type));
@@ -190,8 +183,6 @@ module bbox_front_blank(type, sheet = false, width = 0) { //! 2D template for th
 }

 module bbox_back_blank(type, sheet = false) { //! 2D template for the back
-    dxf(str(bbox_name(type), "_back"));
-
    bb = sheet_thickness(bbox_base_sheet(type));
    t = sheet_thickness(bbox_sheets(type));

@@ -205,27 +196,33 @@ module bbox_back_blank(type, sheet = false) { //! 2D template for the back

 module bbox_base(type)  //! Default base, can be overridden to customise
    render_2D_sheet(bbox_base_sheet(type))
-        bbox_base_blank(type);
+        dxf(str(bbox_name(type), "_base"))
+            bbox_base_blank(type);

 module bbox_top(type)   //! Default top, can be overridden to customise
    render_2D_sheet(bbox_top_sheet(type))
-        bbox_top_blank(type);
+        dxf(str(bbox_name(type), "_top"))
+            bbox_top_blank(type);

 module bbox_back(type)  //! Default back, can be overridden to customise
    render_2D_sheet(bbox_sheets(type))
-        bbox_back_blank(type);
+        dxf(str(bbox_name(type), "_back"))
+            bbox_back_blank(type);

 module bbox_front(type) //! Default front, can be overridden to customise
    render_2D_sheet(bbox_sheets(type))
-        bbox_front_blank(type);
+        dxf(str(bbox_name(type), "_front"))
+            bbox_front_blank(type);

 module bbox_left(type)  //! Default left side, can be overridden to customise
    render_2D_sheet(bbox_sheets(type))
-        bbox_left_blank(type);
+        dxf(str(bbox_name(type), "_left"))
+            bbox_left_blank(type);

 module bbox_right(type) //! Default right side, can be overridden to customise
    render_2D_sheet(bbox_sheets(type))
-        bbox_right_blank(type);
+        dxf(str(bbox_name(type), "_right"))
+            bbox_right_blank(type);

 module _bbox_assembly(type, top = true, base = true, left = true, right = true, back = true, front = true) { //! The box assembly, wrap with a local copy without parameters
    width = bbox_width(type);
@@ -238,6 +235,7 @@ module _bbox_assembly(type, top = true, base = true, left = true, right = true,
    tt = sheet_thickness(bbox_top_sheet(type));
    star_washers = bbox_star_washers(type);
    thin_blocks = bbox_thin_blocks(type);
+    short = bbox_short_inserts(type);

    function is_missing_screw(p) = p.y > depth / 2 - 1 ? !back : false;

@@ -247,14 +245,14 @@ module _bbox_assembly(type, top = true, base = true, left = true, right = true,
            let(q = transform([0, 0, 0], p), thickness = q.z > 0 ? tt : bt)
                multmatrix(p)
                    fastened_corner_block_assembly(is_missing_screw(q) && ((q.z > 0) != (q.x > 0)) ? 0 : t, bbox_screw(type), thickness,
-                                                   is_missing_screw(q) && ((q.z > 0) == (q.x > 0)) ? 0 : t, star_washers = star_washers);
+                                                   is_missing_screw(q) && ((q.z > 0) == (q.x > 0)) ? 0 : t, star_washers = star_washers, short_insert = short);

        h = height / 2 - 1;
        for(p = fixing_block_positions(type))
            let(q = transform([0, 0, 0], p), thickness = q.z > h ? tt : q.z < -h ? bt : t)
                multmatrix(p)
                    if(thin_blocks)
-                        fastened_2screw_block_assembly(is_missing_screw(q) ? 0 : t, bbox_screw(type), thickness_below = thickness, star_washers = star_washers);
+                        fastened_2screw_block_assembly(is_missing_screw(q) ? 0 : t, bbox_screw(type), thickness_below = thickness, star_washers = star_washers, short_insert = short);
                    else
                        fastened_fixing_block_assembly(is_missing_screw(q) ? 0 : t, bbox_screw(type), thickness2 = thickness, star_washers = star_washers);

--- a/printed/flat_hinge.scad
+++ b/printed/flat_hinge.scad
@@ -119,7 +119,8 @@ module hinge_male(type, female = false) {       //! The half with the stationary
        }
 }

-module hinge_female(type) hinge_male(type, true);
+module hinge_female(type) //! The half without the pin
+    hinge_male(type, true);

 module hinge_both(type) { //! Both parts together for printing
    hinge_male(type);
--- a/printed/led_bezel.scad
+++ b/printed/led_bezel.scad
@@ -0,0 +1,85 @@
+//
+// NopSCADlib Copyright Chris Palmer 2022
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Printed LED bezels for panel mounting
+//
+include <../core.scad>
+
+use <../vitamins/led.scad>
+
+function led_bezel(led, flange = 1, flange_h = 1, wall = 1, height = 8) = [led, flange, flange_h, wall, height]; //! Constructor
+function led_bezel_led(type)      = type[0]; //! The LED
+function led_bezel_flange(type)   = type[1]; //! Flange width
+function led_bezel_flange_t(type) = type[2]; //! Flange thickness
+function led_bezel_wall(type)     = type[3]; //! Wall thickness
+function led_bezel_height(type)   = type[4]; //! Total height
+
+function led_bezel_r(type)   =     //! Radius of the tube
+    corrected_radius(led_rim_dia(led_bezel_led(type)) / 2) + led_bezel_wall(type);
+
+function led_bezel_hole_r(type)   =     //! Panel hole radius
+    led_bezel_r(type) + 0.1;
+
+module led_bezel(type) { //! Makes the STL for the bezel
+    led = led_bezel_led(type);
+    stl(str(led[0],"_bezel")) {
+        rl = led_diameter(led) / 2;
+        rr = led_rim_dia(led) / 2;
+        wall = led_bezel_wall(type);
+        poly_tube(or = rr + wall + led_bezel_flange(type), ir = rl, h = led_bezel_flange_t(type));              // Flange
+        poly_tube(or = rl + wall,                          ir = rl, h = led_height(led) - rl - led_rim_t(led)); // Tube up to LED flange
+        poly_tube(or = corrected_radius(rr) + wall,        ir = rr, h = led_bezel_height(type));                // Tube beyond the flange
+    }
+}
+
+module led_bezel_retainer(type) { //! Makes the STL for the retaining ring
+    led = led_bezel_led(type);
+    stl(str(led[0],"_bezel_retainer")) {
+        ir =  led_bezel_r(type);
+        poly_tube(or = ir + led_bezel_wall(type), ir = ir, h = 4);
+    }
+}
+
+module led_bezel_assembly(type, colour = "red") {//! Led bezel with LED
+    led = led_bezel_led(type);
+    assembly(str(led[0], "_", colour, "_bezel")) {
+        translate_z(led_bezel_flange_t(type)) {
+            vflip()
+                stl_colour(pp1_colour)
+                    led_bezel(type);
+
+            translate_z(-led_height(led) + led_diameter(led) / 2)
+                explode(-20)
+                    led(led, colour);
+        }
+    }
+}
+
+module led_bezel_fastened_assembly(type, t, colour = "red") //! Led bezel fitted to panel with  and retaining ring
+{
+    explode(20)
+        led_bezel_assembly(type, colour);
+
+    translate_z(-t)
+        vflip()
+            stl_colour(pp2_colour)
+                explode(60)
+                    led_bezel_retainer(type);
+}
--- a/readme.md
+++ b/readme.md
@@ -21,27 +21,28 @@ A list of changes classified as breaking, additions or fixes is maintained in [C
 ## Table of Contents<a name="top"/>
 <table><tr>
 <th align="left"> Vitamins A-H </th><th align="left"> Vitamins I-Q </th><th align="left"> Vitamins R-Z </th><th align="left"> Printed </th><th align="left"> Utilities </th><th align="left"> Core Utilities </th></tr>
-<tr><td> <a href = "#7_segments">7_segments</a> </td><td> <a href = "#IECs">IECs</a> </td><td> <a href = "#Rails">Rails</a> </td><td> <a href = "#Box">Box</a> </td><td> <a href = "#Annotation">Annotation</a> </td><td> <a href = "#BOM">BOM</a> </td></tr>
-<tr><td> <a href = "#Axials">Axials</a> </td><td> <a href = "#Inserts">Inserts</a> </td><td> <a href = "#Ring_terminals">Ring_terminals</a> </td><td> <a href = "#Butt_box">Butt_box</a> </td><td> <a href = "#Bezier">Bezier</a> </td><td> <a href = "#Clip">Clip</a> </td></tr>
-<tr><td> <a href = "#BLDC_motors">BLDC_motors</a> </td><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Cable_clip">Cable_clip</a> </td><td> <a href = "#Catenary">Catenary</a> </td><td> <a href = "#Global">Global</a> </td></tr>
-<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#LDRs">LDRs</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Core_xy">Core_xy</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
-<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#LED_meters">LED_meters</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Camera_housing">Camera_housing</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
-<tr><td> <a href = "#Bearing_blocks">Bearing_blocks</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#SMDs">SMDs</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
-<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Gears">Gears</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
-<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td></td></tr>
-<tr><td> <a href = "#Box_sections">Box_sections</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Horiholes">Horiholes</a> </td><td></td></tr>
-<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Magnets">Magnets</a> </td><td> <a href = "#Servo_motors">Servo_motors</a> </td><td> <a href = "#Drag_chain">Drag_chain</a> </td><td> <a href = "#Layout">Layout</a> </td><td></td></tr>
-<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Shaft_couplings">Shaft_couplings</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Maths">Maths</a> </td><td></td></tr>
-<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
-<tr><td> <a href = "#Cameras">Cameras</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
-<tr><td> <a href = "#Circlips">Circlips</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
-<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
-<tr><td> <a href = "#DIP">DIP</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#Knob">Knob</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
-<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Swiss_clips">Swiss_clips</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Rounded_triangle">Rounded_triangle</a> </td><td></td></tr>
-<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Terminals">Terminals</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
-<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#Pocket_handle">Pocket_handle</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
-<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Press_fit">Press_fit</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
-<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#Panel_meters">Panel_meters</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
+<tr><td> <a href = "#7_segments">7_segments</a> </td><td> <a href = "#IECs">IECs</a> </td><td> <a href = "#Radials">Radials</a> </td><td> <a href = "#Box">Box</a> </td><td> <a href = "#Annotation">Annotation</a> </td><td> <a href = "#BOM">BOM</a> </td></tr>
+<tr><td> <a href = "#Axials">Axials</a> </td><td> <a href = "#Inserts">Inserts</a> </td><td> <a href = "#Rails">Rails</a> </td><td> <a href = "#Butt_box">Butt_box</a> </td><td> <a href = "#Bezier">Bezier</a> </td><td> <a href = "#Clip">Clip</a> </td></tr>
+<tr><td> <a href = "#BLDC_motors">BLDC_motors</a> </td><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Ring_terminals">Ring_terminals</a> </td><td> <a href = "#Cable_clip">Cable_clip</a> </td><td> <a href = "#Catenary">Catenary</a> </td><td> <a href = "#Global">Global</a> </td></tr>
+<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#LDRs">LDRs</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Core_xy">Core_xy</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
+<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#LED_meters">LED_meters</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Camera_housing">Camera_housing</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
+<tr><td> <a href = "#Bearing_blocks">Bearing_blocks</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
+<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#SMDs">SMDs</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Gears">Gears</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
+<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td></td></tr>
+<tr><td> <a href = "#Box_sections">Box_sections</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Horiholes">Horiholes</a> </td><td></td></tr>
+<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Magnets">Magnets</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Drag_chain">Drag_chain</a> </td><td> <a href = "#Layout">Layout</a> </td><td></td></tr>
+<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Servo_motors">Servo_motors</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Maths">Maths</a> </td><td></td></tr>
+<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Shaft_couplings">Shaft_couplings</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
+<tr><td> <a href = "#Cameras">Cameras</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
+<tr><td> <a href = "#Circlips">Circlips</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
+<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
+<tr><td> <a href = "#DIP">DIP</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#Knob">Knob</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
+<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#LED_bezel">LED_bezel</a> </td><td> <a href = "#Rounded_triangle">Rounded_triangle</a> </td><td></td></tr>
+<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Swiss_clips">Swiss_clips</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
+<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Terminals">Terminals</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
+<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#Pocket_handle">Pocket_handle</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
+<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#Panel_meters">Panel_meters</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Press_fit">Press_fit</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
+<tr><td> <a href = "#Fastons">Fastons</a> </td><td> <a href = "#Photo_interrupters">Photo_interrupters</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td></td><td></td></tr>
 <tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#Pillars">Pillars</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td> <a href = "#Printed_pulleys">Printed_pulleys</a> </td><td></td><td></td></tr>
 <tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#Pillow_blocks">Pillow_blocks</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td></td><td></td></tr>
 <tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Pin_headers">Pin_headers</a> </td><td> <a href = "#Washers">Washers</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</a> </td><td></td><td></td></tr>
@@ -109,7 +110,7 @@ Axial components for PCBs.
 | Module | Description |
 |:--- |:--- |
 | `ax_res(type, value, tol = 5, pitch = 0)` | Through hole axial resistor. If `pitch` is zero the minimum is used. If below the minimum the resistor is placed vertical. |
-| `wire_link(d, l, h = 1, tail = 3)` | Draw a wire jumper link. If `l` is zero then a vertical wire is drawn. |
+| `wire_link(d, l, h = 1, tail = 3, sleeve = false)` | Draw a wire jumper link. `sleeve` can be a list with the diameter and colour. If `l` is zero then a vertical wire is drawn. |

 ![axials](tests/png/axials.png)

@@ -123,6 +124,7 @@ Axial components for PCBs.
 |   1 | `ax_res(res1_4, 47000)` |  Resistor 47000 Ohms 5% 0.25W |
 |   1 | `ax_res(res1_2, 8200)` |  Resistor 8200 Ohms 5% 0.5W |
 |   1 | `ax_res(res1_2, 8250, tol = 1)` |  Resistor 8250 Ohms 1% 0.5W |
+|   1 | `wire_link(0.8, 7.62, h = 0.75, sleeve = [1.5, "red"])` |  Wire link 0.8mm x 0.3" with red sleeving |
 |   1 | `wire_link(0.8, 10.16)` |  Wire link 0.8mm x 0.4" |
 |   1 | `wire_link(0.8, 0, h = 5)` |  Wire link 0.8mm x 8mm |

@@ -709,6 +711,7 @@ PCB cameras.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
+|   1 | `camera(ESP32_CAM)` |  ESP32-CAM Camera module |
 |   1 | `camera(rpi_camera_v1)` |  Raspberry Pi camera V1 |
 |   1 | `camera(rpi_camera_v2)` |  Raspberry Pi camera V2 |
 |   1 | `camera(rpi_camera)` |  Raspberry Pi focusable camera |
@@ -804,6 +807,8 @@ Various electronic components used in hot ends and heated beds.
 ### Functions
 | Function | Description |
 |:--- |:--- |
+| `TO220_lead_pos(i, l)` | Position of ith lead end when length = l |
+| `TO220_size()` | Size of a TO220 |
 | `TO220_thickness()` | Thickness of the tab of a TO220 |
 | `TO247_size()` | Body dimensions of a T247, hole offset, lead height and lead wide length |
 | `fack2spm_bezel_size()` | FACK2SPM Bezel dimensions |
@@ -815,6 +820,7 @@ Various electronic components used in hot ends and heated beds.
 | ` TO220(description, leads = 3, lead_length = 16)` | Draw a TO220 package, use `description` to describe what it is |
 | ` TO247(description, lead_length = 20)` | Draw a TO247 package, use `description` to describe what it is |
 | `al_clad_resistor(type, value, leads = true)` | Draw an aluminium clad resistor |
+| `al_clad_resistor_assembly(type, value, sleeved = true, sleeving = HSHRNK32, sleeving_length = 15)` | Draw aluminium clad resistor with optional sleaving, positions children at the screw positions |
 | `al_clad_resistor_hole_positions(type)` | Position children at the screw holes of an aluminium clad resistor |
 | `al_clad_resistor_holes(type, h = 100)` | Drill screw holes for an aluminium clad resistor |
 | `fack2spm()` | Draw a FACK2SPM Cat5E RJ45 shielded panel mount coupler |
@@ -823,7 +829,7 @@ Various electronic components used in hot ends and heated beds.
 | `panel_USBA()` | Draw a panel mount USBA connector |
 | `panel_USBA_hole_positions()` | Place children at hole positions |
 | `panel_USBA_holes(h = 100)` | Make holes for USBA connector |
-| `resistor(type)` | Draw specified type of resitor |
+| `resistor(type)` | Draw specified type of resistor |
 | `sleeved_resistor(type, sleeving, bare = 5, heatshrink = false)` | Draw a resistor with sleeved leads and option heatshrink |
 | `thermal_cutout(type)` | Draw specified thermal cutout |
 | `thermal_cutout_hole_positions(type)` | Place children at hole positions |
@@ -1190,6 +1196,56 @@ Can draw three styles: solid, open frame and open frame with screw bosses.
 |  32 | `washer(M4_washer)` |  Washer  M4 x 9mm x 0.8mm |


+<a href="#top">Top</a>
+
+---
+<a name="Fastons"></a>
+## Fastons
+Faston receptacles to mate with spade connectors
+
+[vitamins/fastons.scad](vitamins/fastons.scad) Object definitions.
+
+[vitamins/faston.scad](vitamins/faston.scad) Implementation.
+
+[tests/fastons.scad](tests/fastons.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| `faston_d_bot(type)` | Radius of bottom corners |
+| `faston_d_top(type)` | Radius of the clips |
+| `faston_fillet_d(type)` | Fillets at the transition |
+| `faston_insul_crimp_d(type)` | Outside diameter of the insulation crimp |
+| `faston_insul_crimp_l(type)` | Length of the insulation crimp |
+| `faston_insul_crimp_o(type)` | Offset of insulation crimp |
+| `faston_insul_crimp_p(type)` | Position of the tip of the insulation crimp |
+| `faston_size(type)` | Size of the receptical part |
+| `faston_t(type)` | Thickness |
+| `faston_wall_h(type)` | Height of transition web wall |
+| `faston_width(type)` | Width of matching spade |
+| `faston_wire_crimp_d(type)` | Outside diameter of the wire crimp |
+| `faston_wire_crimp_l(type)` | Length of the wire crimp |
+| `faston_wire_crimp_p(type)` | Position of the tip of the wire crimp |
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| `faston_insul_stop(type)` | Position where insulation stops |
+| `faston_length(type)` | Total length of crimp |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| `faston(type, closed = false)` | Draw specified faston |
+
+![fastons](tests/png/fastons.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   4 | `faston(5_160430_7)` |  Faston part no 5_160430_7 to fit 4.75mm spade |
+
+
 <a href="#top">Top</a>

 ---
@@ -1650,6 +1706,16 @@ Nuts for leadscrews.
 | `leadnut_od(type)` | Outer diameter of the shank |
 | `leadnut_pitch(type)` | Screw pitch |
 | `leadnut_screw(type)` | The type of the fixing screws |
+| `leadnuthousing_height(type)` | Height of housing |
+| `leadnuthousing_hole_pos(type)` | Offset from center for nut hole |
+| `leadnuthousing_length(type)` | Length of housing |
+| `leadnuthousing_mount_screw(type)` | Mounting screw |
+| `leadnuthousing_mount_screw_len(type)` | Mounting screw length |
+| `leadnuthousing_nut(type)` | Nut type this is suitable for |
+| `leadnuthousing_nut_screw_length(type)` | Length of mounting screw for nut |
+| `leadnuthousing_screw_dist_l(type)` | Distance between mounting holes length |
+| `leadnuthousing_screw_dist_w(type)` | Distance between mounting holes width |
+| `leadnuthousing_width(type)` | Width of housing |

 ### Functions
 | Function | Description |
@@ -1661,15 +1727,21 @@ Nuts for leadscrews.
 |:--- |:--- |
 | `leadnut(type)` | Draw specified leadnut |
 | `leadnut_screw_positions(type)` | Position children at the screw holes |
+| `leadnuthousing(type)` | Nut housing, to connect a lead nut to another object |
+| `leadnuthousing_nut_position(type)` | The position of the nut may be off-center, use this to get the position |
+| `leadnuthousing_nut_screw_positions(type)` | get screw positions to mount the nut to the nut housing |
+| `leadnuthousing_screw_positions(type)` | Get screw positions to mount the leadnut housing |

 ![leadnuts](tests/png/leadnuts.png)

 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   1 | `leadnut(LSN8x2)` |  Leadscrew nut 8 x 2 |
+|   1 | `nuthousing(LNHT8x2)` |  Lead Screw Nut Housing T8 |
+|   2 | `leadnut(LSN8x2)` |  Leadscrew nut 8 x 2 |
 |   1 | `leadnut(LSN8x8)` |  Leadscrew nut 8 x 8 RobotDigg |
 |   1 | `leadnut(SFU1610)` |  Leadscrew nut for SFU1610 |
+|   4 | `screw(M3_cap_screw, 15)` |  Screw M3 cap x 15mm |


 <a href="#top">Top</a>
@@ -1772,9 +1844,10 @@ Standard domed through hole LEDs. Can specify colour and lead length.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   1 | `led(LED10mm)` |  LED 10 mm red |
+|   1 | `led(LED10mm, "orange")` |  LED 10 mm orange |
 |   1 | `led(LED3mm, "green")` |  LED 3 mm green |
 |   1 | `led(LED5mm, "blue")` |  LED 5 mm blue |
+|   1 | `led(LED8mm)` |  LED 8 mm red |


 <a href="#top">Top</a>
@@ -2224,7 +2297,7 @@ Can be shown stretched by specifying the `actual_id`.
 ---
 <a name="Opengrab"></a>
 ## Opengrab
-Nicodrone OpenGrab V3 electro-permanent magnet, see <https://nicadrone.com/products/epm-v3>.
+Nicodrone OpenGrab V3 electro-permanent magnet, see <https://kb.zubax.com/display/MAINKB/OpenGrab+EPM+v3>.

 A permanent magnet that can be magnetized and de-magnetized electronically.

@@ -2376,7 +2449,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | Module | Description |
 |:--- |:--- |
 | `barrel_jack(cutout = false)` | Draw barrel power jack |
-| `block(size, colour, makes_cutout, cutouts)` | Draw a coloured cube to represent a random PCB component |
+| `block(size, colour, makes_cutout, cutouts, r = 0, rtop = 0)` | Draw a coloured cube to represent a random PCB component |
 | `buzzer(height, diameter, colour)` | Draw PCB buzzer with specified height, diameter and colour |
 | `chip(length, width, thickness, colour, cutout = false)` | Draw a coloured cube to represent a chip, or other rectangular component, or cylinder if width is zero |
 | `flat_flex(type, cutout = false)` | Draw flat flexistrip connector as used on RPI0 |
@@ -2409,6 +2482,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | `usb_C(cutout = false)` | Draw USB C connector |
 | `usb_miniA(cutout = false)` | Draw USB mini A connector |
 | `usb_uA(cutout = false)` | Draw USB micro A connector |
+| `usb_vAx1(cutout = false)` | Draw a vertical USB type A single socket |
 | `vero_pin(cropped = false)` | Draw a vero pin |

 ![pcb](tests/png/pcb.png)
@@ -2418,21 +2492,35 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ---:|:--- |:---|
 |   1 | `potentiometer(BTT_encoder)` |  BTT_encoder |
 |   1 | `box_header(2p54header, 4, 2)` |  Box header 4 x 2 |
+|   1 | `rd_xtal(ACT1100, "40MHz")` |  Crystal ACT1100 40MHz |
+|   1 | `rd_xtal(ACT1700, "80MHz")` |  Crystal ACT1700 80MHz |
+|   1 | `rd_xtal(C_002RX, "60KHz")` |  Crystal C_002RX 60KHz |
+|   1 | `rd_xtal(HC49, "4MHz")` |  Crystal HC49 4MHz |
+|   1 | `rd_xtal(HC49_4H, "10MHz")` |  Crystal HC49_4H 10MHz |
 |   1 | `d_plug(DCONN9, pcb = true)` |  D-type 9 way PCB mount plug |
 |   1 | `dil_socket(12, 15.24)` |  DIL socket 24 x 0.6" |
+|   1 | `smd_diode(DO214AC)` |  DO214AC package SS34 |
 |   1 | `hdmi(hdmi_full)` |  HDMI socket |
 |   1 | `pdip(24, 27C32, w = 15.24)` |  IC 27C32 PDIP24 |
 |   1 | `pdip(8, NE555)` |  IC NE555 PDIP8 |
 |   1 | `idc_transition(2p54header, 5)` |  IDC transition header 5 x 2 |
+|   1 | `smd_inductor(IND2525)` |  IND2525 package 4R7 |
+|   1 | `jst_xh_header(jst_ph_header, 2)` |  JST PH connector 2 way |
+|   1 | `jst_xh_header(jst_xh_header, 2)` |  JST XH connector 2 way |
+|   1 | `jst_xh_header(jst_zh_header, 2)` |  JST ZH connector 2 way |
 |   1 | `potentiometer(KY_040_encoder)` |  KY_040_encoder |
 |   1 | `led(LED10mm, "yellow")` |  LED 10 mm yellow |
 |   1 | `led(LED3mm)` |  LED 3 mm red |
 |   1 | `led(LED5mm, "orange")` |  LED 5 mm orange |
+|   1 | `led(LED8mm, "blue")` |  LED 8 mm blue |
 |   1 | `microswitch(small_microswitch)` |  Microswitch DM1-00P-110-3 |
 |   1 | `hdmi(hdmi_mini)` |  Mini HDMI socket |
 |   1 | `molex_254(2)` |  Molex KK header 2 way |
+|   1 | `molex_254(2, right_angle = 1)` |  Molex KK header 2 way right angle |
+|   1 | `molex_254(2, right_angle = -1)` |  Molex KK header 2 way right angle |
 |   1 | `pin_header(2p54header, 4, 1)` |  Pin header 4 x 1 |
 |   1 | `pin_header(2p54header, 5, 1)` |  Pin header 5 x 1 |
+|   1 | `pin_header(2p54header, 5, 1, right_angle = true)` |  Pin header 5 x 1 right_angle |
 |   1 | `pin_socket(2p54header, 4, 1)` |  Pin socket 4 x 1 |
 |   1 | `pin_socket(2p54header, 6, 1)` |  Pin socket 6 x 1 |
 |   2 | `pin_socket(2p54header, 8, 1)` |  Pin socket 8 x 1 |
@@ -2445,12 +2533,21 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `smd_led(LED0603, orange)` |  SMD LED 0603 orange |
 |   1 | `smd_led(LED0805, red)` |  SMD LED 0805 red |
 |   1 | `smd_led(LED1206, blue)` |  SMD LED 1306 blue |
-|   1 | `smd_capacitor(CAP0603)` |  SMD capacitor 0603 |
-|   1 | `smd_capacitor(CAP0805)` |  SMD capacitor 0805 |
-|   1 | `smd_capacitor(CAP1206)` |  SMD capacitor 1206 |
-|   1 | `smd_resistor(RES0603, 1K)` |  SMD resistor 0603 1K 0.1W |
+|   1 | `smd_tant(TANT_A)` |  SMD Tantalum capacitor package A ,1uF, 2.5V |
+|   1 | `smd_tant(TANT_B)` |  SMD Tantalum capacitor package B ,10uF, 10V |
+|   1 | `smd_tant(TANT_C)` |  SMD Tantalum capacitor package C ,100uF, 16V |
+|   1 | `smd_capacitor(CAP0402)` |  SMD capacitor 0402 10nF |
+|   1 | `smd_capacitor(CAP0502)` |  SMD capacitor 0502 10nF |
+|   1 | `smd_capacitor(CAP0603)` |  SMD capacitor 0603 10nF |
+|   1 | `smd_capacitor(CAP0805)` |  SMD capacitor 0805 100nF |
+|   1 | `smd_capacitor(CAP1206)` |  SMD capacitor 1206 1uF |
+|   1 | `smd_coax(U_FL_R_SMT_1)` |  SMD coax connector type: U_FL_R_SMT_1 |
+|   1 | `smd_resistor(RES0402, 1)` |  SMD resistor 0402 1 0.0625W |
+|   1 | `smd_resistor(RES0502, 10)` |  SMD resistor 0502 10 0.05W |
+|   1 | `smd_resistor(RES0603, 100)` |  SMD resistor 0603 100 0.1W |
 |   1 | `smd_resistor(RES0805, 1K)` |  SMD resistor 0805 1K 0.125W |
-|   1 | `smd_resistor(RES1206, 1K)` |  SMD resistor 1206 1K 0.25W |
+|   1 | `smd_resistor(RES1206, 1M)` |  SMD resistor 1206 1M 0.25W |
+|   1 | `smd_soic(SOIC14)` |  SOIC14 package 74HC00 |
 |   1 | `smd_soic(SOIC16)` |  SOIC16 package ICL323 |
 |   1 | `smd_soic(SOIC18)` |  SOIC18 package PIC18F88 |
 |   1 | `smd_soic(SOIC8)` |  SOIC8 package M34063 |
@@ -2458,6 +2555,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `smd_sot(SOT23)` |  SOT23 package 2N7000 |
 |   1 | `square_button(button_4p5mm)` |  Square button 4.5mm |
 |   1 | `square_button(button_6mm)` |  Square button 6mm |
+|   1 | `smd_pot(TC33X1)` |  TC33X1 package 10K |
 |   1 | `pcb(TMC2130)` |  TMC2130 |
 |   1 | `green_terminal(gt_5p08, 2)` |  Terminal block 2 way 0.2" |
 |   2 | `green_terminal(gt_6p35, 2)` |  Terminal block 2 way 0.25" |
@@ -2472,6 +2570,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   2 | `vero_pin()` |  Vero board pin |
 |   1 | `wire_link(0.8, 5.08, h = 10.16)` |  Wire link 0.8mm x 0.2" |
 |   1 | `wire_link(0.8, 10.16)` |  Wire link 0.8mm x 0.4" |
+|   1 | `wire_link(0.8, 10.16, h = 0.75, sleeve = [1.5, "red"])` |  Wire link 0.8mm x 0.4" with red sleeving |
 |   1 | `wire_link(0.8, 0, h = 5)` |  Wire link 0.8mm x 8mm |


@@ -2531,7 +2630,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | Module | Description |
 |:--- |:--- |
 | `barrel_jack(cutout = false)` | Draw barrel power jack |
-| `block(size, colour, makes_cutout, cutouts)` | Draw a coloured cube to represent a random PCB component |
+| `block(size, colour, makes_cutout, cutouts, r = 0, rtop = 0)` | Draw a coloured cube to represent a random PCB component |
 | `buzzer(height, diameter, colour)` | Draw PCB buzzer with specified height, diameter and colour |
 | `chip(length, width, thickness, colour, cutout = false)` | Draw a coloured cube to represent a chip, or other rectangular component, or cylinder if width is zero |
 | `flat_flex(type, cutout = false)` | Draw flat flexistrip connector as used on RPI0 |
@@ -2564,6 +2663,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | `usb_C(cutout = false)` | Draw USB C connector |
 | `usb_miniA(cutout = false)` | Draw USB mini A connector |
 | `usb_uA(cutout = false)` | Draw USB micro A connector |
+| `usb_vAx1(cutout = false)` | Draw a vertical USB type A single socket |
 | `vero_pin(cropped = false)` | Draw a vero pin |

 ![pcbs](tests/png/pcbs.png)
@@ -2594,14 +2694,15 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pcb(MP1584EN)` |  MP1584EN 3A buck converter |
 |   1 | `pcb(MT3608)` |  MT3608 boost converter module |
 |   1 | `pcb(Melzi)` |  Melzi electronics - not shown |
-|   4 |  |  Micro SD card |
+|   6 |  |  Micro SD card |
 |   1 |  |  Micro SD card - not shown |
 |   1 | `molex_254(2)` |  Molex KK header 2 way - not shown |
 |   1 | `molex_254(3)` |  Molex KK header 3 way - not shown |
 |  20 | `nut(M2_nut, nyloc = true)` |  Nut M2 x 1.6mm nyloc |
-|  30 | `nut(M2p5_nut, nyloc = true)` |  Nut M2.5 x 2.2mm nyloc |
-|  36 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
+|  34 | `nut(M2p5_nut, nyloc = true)` |  Nut M2.5 x 2.2mm nyloc |
+|  40 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
 |   8 | `nut(M4_nut, nyloc = true)` |  Nut M4 x 3.2mm nyloc |
+|   1 | `pcb(OPZ2)` |  Orange Pi Zero 2 |
 |   1 | `pcb(PI_IO)` |  PI_IO V2 - not shown |
 |   1 | `pcb(PSU12V1A)` |  PSU 12V 1A - not shown |
 |   1 | `pcb(PERF60x40)` |  Perfboard 60 x 40mm |
@@ -2613,6 +2714,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pin_socket(2p54header, 13, 2, right_angle = true)` |  Pin socket 13 x 2 right_angle - not shown |
 |   1 | `pcb(RAMPSEndstop)` |  RAMPS Endstop Switch |
 |   1 | `pcb(RPI3)` |  Raspberry Pi 3 |
+|   1 | `pcb(RPI3A)` |  Raspberry Pi 3 A+ |
 |   1 | `pcb(RPI4)` |  Raspberry Pi 4 |
 |   1 | `pcb(RPI_Pico)` |  Raspberry Pi Pico |
 |   1 | `pcb(RPI0)` |  Raspberry Pi Zero |
@@ -2620,15 +2722,14 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |  12 | `screw(M2_cap_screw, 20)` |  Screw M2 cap x 20mm |
 |   2 | `screw(M2p5_cap_screw, 16)` |  Screw M2.5 cap x 16mm |
 |   8 | `screw(M2p5_cap_screw, 25)` |  Screw M2.5 cap x 25mm |
-|   8 | `screw(M2p5_cap_screw, 30)` |  Screw M2.5 cap x 30mm |
+|  12 | `screw(M2p5_cap_screw, 30)` |  Screw M2.5 cap x 30mm |
 |   4 | `screw(M2p5_pan_screw, 20)` |  Screw M2.5 pan x 20mm |
 |   8 | `screw(M2p5_pan_screw, 25)` |  Screw M2.5 pan x 25mm |
-|   8 | `screw(M3_cap_screw, 16)` |  Screw M3 cap x 16mm |
-|   6 | `screw(M3_cap_screw, 20)` |  Screw M3 cap x 20mm |
+|  17 | `screw(M3_cap_screw, 16)` |  Screw M3 cap x 16mm |
+|  15 | `screw(M3_cap_screw, 20)` |  Screw M3 cap x 20mm |
 |   8 | `screw(M3_cap_screw, 30)` |  Screw M3 cap x 30mm |
-|  14 | `screw(M3_cap_screw, 35)` |  Screw M3 cap x 35mm |
-|   4 | `screw(M4_cap_screw, 35)` |  Screw M4 cap x 35mm |
-|   4 | `screw(M4_cap_screw, 40)` |  Screw M4 cap x 40mm |
+|   4 | `screw(M4_cap_screw, 20)` |  Screw M4 cap x 20mm |
+|   4 | `screw(M4_cap_screw, 25)` |  Screw M4 cap x 25mm |
 |   1 | `pcb(XIAO)` |  Seeeduino XIAO |
 |   1 | `pcb(TP4056)` |  TP4056 Li-lon Battery charger module |
 |   3 | `terminal_35(2)` |  Terminal block 2 way 3.5mm - not shown |
@@ -2636,8 +2737,8 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 |  |  USB A to Mini B lead - not shown |
 |   1 | `pcb(WD2002SJ)` |  WD2002SJ Buck Boost DC-DC converter |
 |  20 | `washer(M2_washer)` |  Washer  M2 x 5mm x 0.3mm |
-|  30 | `washer(M2p5_washer)` |  Washer  M2.5 x 5.9mm x 0.5mm |
-|  36 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
+|  34 | `washer(M2p5_washer)` |  Washer  M2.5 x 5.9mm x 0.5mm |
+|  40 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
 |   8 | `washer(M4_washer)` |  Washer  M4 x 9mm x 0.8mm |
 |   1 | `pcb(ZC_A0591)` |  ZC-A0591 ULN2003 driver PCB |

@@ -2653,21 +2754,62 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   4 | pcb_spacer25140.stl |
 |   4 | pcb_spacer25150_2.stl |
 |   4 | pcb_spacer25160_2.stl |
-|   4 | pcb_spacer25180.stl |
 |   4 | pcb_spacer25190.stl |
+|   4 | pcb_spacer25200.stl |
+|   4 | pcb_spacer25210.stl |
 |   2 | pcb_spacer2550.stl |
 |   4 | pcb_spacer2590.stl |
 |   4 | pcb_spacer30170.stl |
-|   4 | pcb_spacer30200.stl |
-|   5 | pcb_spacer30210.stl |
-|   5 | pcb_spacer30220.stl |
-|   4 | pcb_spacer30230.stl |
-|   4 | pcb_spacer3050.stl |
-|   4 | pcb_spacer3060.stl |
-|   2 | pcb_spacer3070.stl |
-|   4 | pcb_spacer3080.stl |
-|   4 | pcb_spacer40240.stl |
-|   4 | pcb_spacer40250.stl |
+|   4 | pcb_spacer30180.stl |
+|   8 | pcb_spacer3050.stl |
+|   9 | pcb_spacer3060.stl |
+|   7 | pcb_spacer3070.stl |
+|   8 | pcb_spacer3080.stl |
+|   4 | pcb_spacer40100.stl |
+|   4 | pcb_spacer4090.stl |
+
+
+<a href="#top">Top</a>
+
+---
+<a name="Photo_interrupters"></a>
+## Photo_interrupters
+Photo interrupter modules popular in robot kits and from China.
+
+[vitamins/photo_interrupters.scad](vitamins/photo_interrupters.scad) Object definitions.
+
+[vitamins/photo_interrupter.scad](vitamins/photo_interrupter.scad) Implementation.
+
+[tests/photo_interrupters.scad](tests/photo_interrupters.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| `pi_base_height(type)` | Height of the base |
+| `pi_base_length(type)` | Length of the base |
+| `pi_base_width(type)` | Width of the base |
+| `pi_color(type)` | Color of photo interrupter |
+| `pi_gap_height(type)` | Height of the gap where the light can be interrupted |
+| `pi_gap_width(type)` | Width of the gap |
+| `pi_hole_diameter(type)` | Diameter of the mounting holes |
+| `pi_pcb(type)` | Parameter for the support PCB, created with pi_pcb |
+| `pi_stem_width(type)` | Width of the stems |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| `photo_interrupter(type)` | Draw the photo interrupter, with PCB |
+| `pi_cutout(type)` | Shape to subtract for fitting a photo interrupter |
+| `pi_hole_locations(type)` | Locations of photo interrupter mounting holes |
+| `pi_pcb(type)` | Draw the support PCB |
+| `pi_pcb_hole_locations(pcb)` | Locations of the PCB holes |
+
+![photo_interrupters](tests/png/photo_interrupters.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | `photo_interrupter(PH1)` |  PH1 Photo interrupter |


 <a href="#top">Top</a>
@@ -2804,7 +2946,7 @@ Pin headers and sockets, etc.
 |:--- |:--- |
 | `box_header(type, cols = 1, rows = 1, smt = false, cutout = false)` | Draw box header |
 | `idc_transition(type, cols = 5, skip = [], cutout = false)` | Draw IDC transition header |
-| `jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_colour = false, smt = false)` | Draw JST XH connector |
+| `jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_colour = false, smt = false)` | Draw JST XH, PH or ZH connector |
 | `pin(type, length = undef)` | Draw a header pin |
 | `pin_header(type, cols = 1, rows = 1, smt = false, right_angle = false, cutout = false, colour)` | Draw pin header |
 | `pin_socket(type, cols = 1, rows = 1, right_angle = false, height = 0, smt = false, cutout = false, colour)` | Draw pin socket |
@@ -2817,6 +2959,18 @@ Pin headers and sockets, etc.
 |   1 | `box_header(2p54header, 10, 2)` |  Box header 10 x 2 |
 |   1 | `box_header(2p54header, 8, 1)` |  Box header 8 x 1 |
 |   1 | `idc_transition(2p54header, 10)` |  IDC transition header 10 x 2 |
+|   1 | `jst_xh_header(jst_ph_header, 2)` |  JST PH connector 2 way |
+|   1 | `jst_xh_header(jst_ph_header, 2, right_angle = true)` |  JST PH connector 2 way right_angle |
+|   1 | `jst_xh_header(jst_ph_header, 5)` |  JST PH connector 5 way |
+|   1 | `jst_xh_header(jst_ph_header, 5, right_angle = true)` |  JST PH connector 5 way right_angle |
+|   1 | `jst_xh_header(jst_xh_header, 2)` |  JST XH connector 2 way |
+|   1 | `jst_xh_header(jst_xh_header, 2, right_angle = true)` |  JST XH connector 2 way right_angle |
+|   1 | `jst_xh_header(jst_xh_header, 5)` |  JST XH connector 5 way |
+|   1 | `jst_xh_header(jst_xh_header, 5, right_angle = true)` |  JST XH connector 5 way right_angle |
+|   1 | `jst_xh_header(jst_zh_header, 2)` |  JST ZH connector 2 way |
+|   1 | `jst_xh_header(jst_zh_header, 2, right_angle = true)` |  JST ZH connector 2 way right_angle |
+|   1 | `jst_xh_header(jst_zh_header, 5)` |  JST ZH connector 5 way |
+|   1 | `jst_xh_header(jst_zh_header, 5, right_angle = true)` |  JST ZH connector 5 way right_angle |
 |   1 | `pin_header(2p54header, 10, 2)` |  Pin header 10 x 2 |
 |   1 | `pin_header(2p54header, 3, 1, right_angle = true)` |  Pin header 3 x 1 right_angle |
 |   1 | `pin_header(2p54header, 3, 2, right_angle = true)` |  Pin header 3 x 2 right_angle |
@@ -3029,6 +3183,46 @@ Timing belt pulleys, both toothed and plain with internal bearings for idlers.
 |   1 | `screw(M4_grub_screw, 6)` |  Screw M4 grub x  6mm |


+<a href="#top">Top</a>
+
+---
+<a name="Radials"></a>
+## Radials
+Radial components for PCBs.
+
+[vitamins/radials.scad](vitamins/radials.scad) Object definitions.
+
+[vitamins/radial.scad](vitamins/radial.scad) Implementation.
+
+[tests/radials.scad](tests/radials.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| `rd_xtal_flange(type)` | Crystal flange width and thickness |
+| `rd_xtal_lead_d(type)` | Crystal lead diameter |
+| `rd_xtal_pitch(type)` | Crystal lead pitch |
+| `rd_xtal_size(type)` | Crystal length, width and height and optional corner radius |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| `cylindrical_wrap(r, h = eps)` | Wrap a 2D child extruded to height `h` around a cylinder with radius `r`. |
+| `rd_xtal(type, value, z = 0, pitch = undef, tail = 3)` | Draw a crystal |
+
+![radials](tests/png/radials.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | `rd_xtal(ACT1100, "ACT1100")` |  Crystal ACT1100 ACT1100 |
+|   1 | `rd_xtal(ACT1700, "ACT1700")` |  Crystal ACT1700 ACT1700 |
+|   1 | `rd_xtal(C_002RX, "C_002RX")` |  Crystal C_002RX C_002RX |
+|   1 | `rd_xtal(HC49, "HC49")` |  Crystal HC49 HC49 |
+|   1 | `rd_xtal(HC49_4H, "HC49_4H")` |  Crystal HC49_4H HC49_4H |
+|   1 | `pcb(PERF60x40)` |  Perfboard 60 x 40mm |
+
+
 <a href="#top">Top</a>

 ---
@@ -3310,6 +3504,7 @@ For an explanation of `screw_polysink()` see <https://hydraraptor.blogspot.com/2
 | `screw_radius(type)` | Nominal radius |
 | `screw_socket_af(type)` | Socket across flats |
 | `screw_socket_depth(type)` | Socket or slot depth |
+| `screw_thread_diameter(type)` | Thread diameter, if different from nominal diamter |
 | `screw_washer(type)` | Default washer |

 ### Functions
@@ -3330,6 +3525,7 @@ For an explanation of `screw_polysink()` see <https://hydraraptor.blogspot.com/2
 | `screw(type, length, hob_point = 0, nylon = false)` | Draw specified screw, optionally hobbed or nylon |
 | `screw_and_washer(type, length, star = false, penny = false)` | Screw with a washer which can be standard or penny and an optional star washer on top |
 | `screw_countersink(type, drilled = true)` | Countersink shape |
+| `screw_keyhole(type, h = 0)` | Make keyhole slot to accept and retain screw head |
 | `screw_polysink(type, h = 100, alt = false, sink = 0)` | A countersink hole made from stacked polyholes for printed parts, default is flush, `sink` can be used to recess the head |

 ![screws](tests/png/screws.png)
@@ -3351,12 +3547,14 @@ For an explanation of `screw_polysink()` see <https://hydraraptor.blogspot.com/2
 |   1 | `screw(M3_hex_screw, 10)` |  Screw M3 hex x 10mm |
 |   1 | `screw(M3_low_cap_screw, 10)` |  Screw M3 low cap x 10mm |
 |   1 | `screw(M3_pan_screw, 10)` |  Screw M3 pan x 10mm |
+|   1 | `screw(M3_shoulder_screw, 12)` |  Screw M3 shoulder x 12mm |
 |   1 | `screw(M4_cap_screw, 25)` |  Screw M4 cap x 25mm |
 |   1 | `screw(M4_cs_cap_screw, 25)` |  Screw M4 cs cap x 25mm |
 |   1 | `screw(M4_dome_screw, 25)` |  Screw M4 dome x 25mm |
 |   1 | `screw(M4_grub_screw, 8)` |  Screw M4 grub x  8mm |
 |   1 | `screw(M4_hex_screw, 30)` |  Screw M4 hex x 30mm |
 |   1 | `screw(M4_pan_screw, 30)` |  Screw M4 pan x 30mm |
+|   1 | `screw(M4_shoulder_screw, 16)` |  Screw M4 shoulder x 16mm |
 |   1 | `screw(M5_cap_screw, 30)` |  Screw M5 cap x 30mm |
 |   1 | `screw(M5_cs_cap_screw, 30)` |  Screw M5 cs cap x 30mm |
 |   1 | `screw(M5_dome_screw, 30)` |  Screw M5 dome x 30mm |
@@ -3481,6 +3679,7 @@ Shaft couplings
 | `sc_diameter(type)` | Coupling outer diameter |
 | `sc_diameter1(type)` | Diameter of smaller shaft |
 | `sc_diameter2(type)` | Diameter of larger shaft |
+| `sc_flexible(type)` | Flexible coupling |
 | `sc_length(type)` | Coupling length |

 ### Modules
@@ -3494,6 +3693,7 @@ Shaft couplings
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
 |   1 | `shaft_coupling(SC_5x8_rigid)` |  Shaft coupling SC_5x8_rigid |
+|   1 | `shaft_coupling(SC_6x8_flex)` |  Shaft coupling SC_6x8_flex |


 <a href="#top">Top</a>
@@ -3557,7 +3757,7 @@ When woven sheets (e.g. carbon fibre) are rendered it is necessary to specify th
 |   1 | `sheet(AL3, 30, 30, 2)` |  Aluminium tooling plate 30mm x 30mm x 3mm |
 |   1 | `sheet(AL6, 30, 30, 2)` |  Aluminium tooling plate 30mm x 30mm x 6mm |
 |   1 | `sheet(AL8, 30, 30, 2)` |  Aluminium tooling plate 30mm x 30mm x 8mm |
-|   1 | `sheet(Spring05, 30, 30, 2)` |  Bi-metal saw blade 30mm x 30mm x 0.5mm |
+|   1 | `sheet(Spring08, 30, 30, 2)` |  Bi-metal saw blade 30mm x 30mm x 0.8mm |
 |   1 | `sheet(Cardboard, 30, 30, 2)` |  Corrugated cardboard 30mm x 30mm x 5mm |
 |   1 | `sheet(Foam20, 30, 30, 2)` |  Foam sponge 30mm x 30mm x 20mm |
 |   1 | `sheet(DiBond, 30, 30, 2)` |  Sheet DiBond 30mm x 30mm x 3mm |
@@ -3642,6 +3842,21 @@ SK shaft support brackets
 ## SMDs
 Surface mount components for PCBs.

+Note that the value string for tantalum capacitors is the the capacitance in pico farads expressed as two digits plus an exponent plus a single letter voltage code.
+E.g. 475A is 4.7uF 10V on the parts list.
+
+| Code | Voltage |
+| ---- | ------- |
+| e | 2.5 |
+| G | 4 |
+| J | 6.3 |
+| A | 10 |
+| C | 16 |
+| D | 20 |
+| E | 25 |
+| V | 35 |
+| H | 50 |
+
 [vitamins/smds.scad](vitamins/smds.scad) Object definitions.

 [vitamins/smd.scad](vitamins/smd.scad) Implementation.
@@ -3653,8 +3868,30 @@ Surface mount components for PCBs.
 |:--- |:--- |
 | `smd_cap_end_cap(type)` | End cap width |
 | `smd_cap_size(type)` | Body length, width |
+| `smd_coax_base_r(type)` | Corner radius of the base |
+| `smd_coax_base_size(type)` | Size of the insulating base |
+| `smd_coax_groove(type)` | Groove id, width and z |
+| `smd_coax_lug_size(type)` | lug size |
+| `smd_coax_pin_d(type)` | Central pin diameter |
+| `smd_coax_tube(type)` | OD, ID, height |
+| `smd_contact_size(type)` | contact size |
+| `smd_diode_colour(type)` | Body colour |
+| `smd_diode_lead_z(type)` | Top of lead frame from top |
+| `smd_diode_leads(type)` | Lead extent in x, width, thickness and gap |
+| `smd_diode_size(type)` | Body length, width and height |
+| `smd_diode_z(type)` | Height above PCB surface |
+| `smd_inductor_colour(type)` | Body colour |
+| `smd_inductor_lead_z(type)` | Top of lead frame from top |
+| `smd_inductor_leads(type)` | Lead extent in x, width, thickness and gap |
+| `smd_inductor_size(type)` | Body length, width and height |
+| `smd_inductor_z(type)` | Height above PCB surface |
 | `smd_led_lens(type)` | Lens length width and height |
 | `smd_led_size(type)` | Body length, width and height |
+| `smd_pot_contacts(type)` | Contacts width, depth, pitch and width, depth, gap for center contact |
+| `smd_pot_cross(type)` | Cross head slot for screwdriver |
+| `smd_pot_flat(type)` | Flat at the back of the wiper |
+| `smd_pot_size(type)` | Base length, width and height |
+| `smd_pot_wiper(type)` | Wiper diameter, offset, thickness, height, d1, d2, d3, d4 |
 | `smd_res_end_cap(type)` | End cap width |
 | `smd_res_power(type)` | Power rating in Watts |
 | `smd_res_size(type)` | Body length, width and height |
@@ -3671,6 +3908,11 @@ Surface mount components for PCBs.
 | `smd_sot_size(type)` | Body length, width and height |
 | `smd_sot_tab_width(type)` | The wide lead at the top |
 | `smd_sot_z(type)` | Height above PCB surface |
+| `smd_tant_colours(type)` | Colours of body and stripe |
+| `smd_tant_lead_z(type)` | Top of lead frame from top |
+| `smd_tant_leads(type)` | Lead extent in x, width, thickness and gap |
+| `smd_tant_size(type)` | Body length, width and height |
+| `smd_tant_z(type)` | Height above PCB surface |

 ### Functions
 | Function | Description |
@@ -3683,30 +3925,47 @@ Surface mount components for PCBs.
 | Module | Description |
 |:--- |:--- |
 | `smd_capacitor(type, height, value = undef)` | Draw an SMD capacitor with specified height |
+| `smd_coax(type)` | Draw an SMD coaxial connector |
+| `smd_diode(type, value)` | Draw an SMD diode |
+| `smd_inductor(type, value)` | Draw an SMD inductor |
 | `smd_led(type, colour, cutout)` | Draw an SMD LED with specified `colour` |
+| `smd_pot(type, value)` | Draw an SMD pot |
 | `smd_resistor(type, value)` | Draw an SMD resistor with specified value |
 | `smd_soic(type, value)` | Draw an SMD SOIC |
 | `smd_sot(type, value)` | Draw an SMD transistor |
+| `smd_tant(type, value)` | Draw an SMD tantalum capacitor |

 ![smds](tests/png/smds.png)

 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
+|   1 | `smd_diode(DO214AC)` |  DO214AC package SS34 |
+|   1 | `smd_inductor(IND2525)` |  IND2525 package 4R7 |
 |   1 | `smd_led(LED0603, green)` |  SMD LED 0603 green |
 |   1 | `smd_led(LED0805, blue)` |  SMD LED 0805 blue |
 |   1 | `smd_led(LED1206, red)` |  SMD LED 1306 red |
+|   1 | `smd_tant(TANT_A)` |  SMD Tantalum capacitor package A ,1uF, 2.5V |
+|   1 | `smd_tant(TANT_B)` |  SMD Tantalum capacitor package B ,10uF, 6.3V |
+|   1 | `smd_tant(TANT_C)` |  SMD Tantalum capacitor package C ,100uF, 10V |
+|   1 | `smd_capacitor(CAP0402)` |  SMD capacitor 0402 |
+|   1 | `smd_capacitor(CAP0502)` |  SMD capacitor 0502 |
 |   1 | `smd_capacitor(CAP0603)` |  SMD capacitor 0603 |
 |   1 | `smd_capacitor(CAP0805)` |  SMD capacitor 0805 |
 |   1 | `smd_capacitor(CAP1206)` |  SMD capacitor 1206 |
-|   1 | `smd_resistor(RES0603, 1R0)` |  SMD resistor 0603 1R0 0.1W |
+|   1 | `smd_coax(U_FL_R_SMT_1)` |  SMD coax connector type: U_FL_R_SMT_1 |
+|   1 | `smd_resistor(RES0402, 1R0)` |  SMD resistor 0402 1R0 0.0625W |
+|   1 | `smd_resistor(RES0502, 10)` |  SMD resistor 0502 10 0.05W |
+|   1 | `smd_resistor(RES0603, 100)` |  SMD resistor 0603 100 0.1W |
 |   1 | `smd_resistor(RES0805, 10M)` |  SMD resistor 0805 10M 0.125W |
 |   1 | `smd_resistor(RES1206, 100K)` |  SMD resistor 1206 100K 0.25W |
+|   1 | `smd_soic(SOIC14)` |  SOIC14 package SOIC14 |
 |   1 | `smd_soic(SOIC16)` |  SOIC16 package SOIC16 |
 |   1 | `smd_soic(SOIC18)` |  SOIC18 package SOIC18 |
 |   1 | `smd_soic(SOIC8)` |  SOIC8 package SOIC8 |
 |   1 | `smd_sot(SOT223)` |  SOT223 package FZT851 |
 |   1 | `smd_sot(SOT23)` |  SOT23 package 2N7000 |
+|   1 | `smd_pot(TC33X1)` |  TC33X1 package 10K |


 <a href="#top">Top</a>
@@ -4181,6 +4440,8 @@ Tubing and sleeving. The internal diameter can be forced to stretch it over some
 |   1 | `tubing(HSHRNK24)` |  Heatshrink sleeving ID 2.4mm x 15mm |
 |   1 | `tubing(HSHRNK64)` |  Heatshrink sleeving ID 6.4mm x 15mm |
 |   1 | `tubing(NEOP85)` |  Neoprene tubing OD 8mm ID 5mm x 15mm |
+|   1 | `tubing(STFE4_3p2_CLR)` |  PTFE heatshrink sleeving OD 3.7mm ID 3.2mm x 15mm |
+|   1 | `tubing(STFE4_6p4_CLR)` |  PTFE heatshrink sleeving OD 7mm ID 6.4mm x 15mm |
 |   1 | `tubing(PTFE07)` |  PTFE sleeving OD 1.2mm ID 0.71mm x 15mm |
 |   1 | `tubing(PTFE20)` |  PTFE sleeving OD 2.6mm ID 2mm x 15mm |
 |   1 | `tubing(PTFE2_3)` |  PTFE tubing OD 3mm ID 2mm x 15mm |
@@ -4274,6 +4535,7 @@ Veroboard with mounting holes, track breaks, removed tracks, solder points and c
 | Function | Description |
 |:--- |:--- |
 | `vero(name, assembly, holes, strips, pitch = 2.54, fr4 = false, screw = M3_cap_screw, mounting_holes = [], breaks = [], no_tracks = [], components = [], joints = [])` | Constructor |
+| `vero_grid_pos(type, x, y)` | Convert grid position to offset from the centre |
 | `vero_length(type)` | Length of the board |
 | `vero_size(type)` | Board size |
 | `vero_thickness(type)` | Thickness of the substrate |
@@ -4290,7 +4552,9 @@ Veroboard with mounting holes, track breaks, removed tracks, solder points and c
 | `vero_mounting_hole_positions(type)` | Positions children at the mounting holes |
 | `vero_mounting_holes(type, h = 100)` | Drill mounting holes in a panel |
 | `veroboard(type)` | Draw specified veroboard with missing tracks and track breaks |
-| `veroboard_assembly(type, height, thickness, flip = false, ngb = false)` | Draw the assembly with components and fasteners in place |
+| `veroboard_assembly(type, ngb = false)` | Draw the assembly with components |
+| `veroboard_fastened_assembly(type, height, thickness, flip = false, ngb = false)` | Draw the assembly with components and fasteners in place |
+| `veroboard_fasteners(type, height, thickness, flip = false)` | Draw the fasteners in place |

 ![veroboard](tests/png/veroboard.png)

@@ -4298,16 +4562,16 @@ Veroboard with mounting holes, track breaks, removed tracks, solder points and c
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
 |   2 | `idc_transition(2p54header, 10)` |  IDC transition header 10 x 2 |
-|   4 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
-|   4 | `screw(M3_dome_screw, 25)` |  Screw M3 dome x 25mm |
+|   2 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
+|   2 | `screw(M3_dome_screw, 25)` |  Screw M3 dome x 25mm |
 |   2 | `green_terminal(gt_2p54, 10)` |  Terminal block 10 way 0.1" |
 |   2 | `veroboard(z_vb)` |  Veroboard 5 holes x 22 strips |
-|   8 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
+|   4 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |

 ### Printed
 | Qty | Filename |
 | ---:|:--- |
-|   4 | pcb_spacer30120.stl |
+|   2 | pcb_spacer30120.stl |

 ### Assemblies
 | Qty | Name |
@@ -4445,7 +4709,7 @@ Utilities for adding wires to the BOM and optionally drawing them and cable bund
 | `cable_tie_holes(cable_r, h = 100)` | Holes to thread a ziptie through a panel to make a cable tie. |
 | `mouse_hole(cable, h = 100, teardrop = false)` | A mouse hole to allow a panel to go over a wire bundle. |
 | `ribbon_cable(ways, length)` | Add ribbon cable to the BOM |
-| `wire(colour, strands, length, strand = 0.2)` | Add stranded wire to the BOM |
+| `wire(colour, strands, length, strand = 0.2, d = 0, path = [])` | Add stranded wire to the BOM and draw it if diameter and path specified |

 ![wire](tests/png/wire.png)

@@ -4571,10 +4835,10 @@ The top bezel can have an optional child, which is subtracted to allow modificat
 | `box_left_blank(type, sheet = false)` | Generates a 2D template for the left sheet, `sheet` can be set to override the type |
 | `box_right(type)` | Default right side, can be overridden to customise |
 | `box_right_blank(type, sheet = false)` | Generates a 2D template for the right sheet, `sheet` can be set to override the type |
-| `box_shelf_blank(type, sheet = false)` | Generates a 2D template for a shelf sheet |
+| `box_shelf_blank(type, sheet = false, wall = undef)` | Generates a 2D template for a shelf sheet |
 | `box_shelf_bracket(type, screw_positions, wall = undef)` | Generates a shelf bracket, the first optional child is a 2D cutout and the second 3D cutouts |
 | `box_shelf_bracket_section(type, rows, cols, x, y)` | Generates sections of the shelf bracket to allow it to be bigger than the printer |
-| `box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = undef)` | Place children at the shelf screw positions |
+| `box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = undef, top_screws = true)` | Place children at the shelf screw positions |
 | `box_top(type)` | Default top, can be overridden to customise |
 | `box_top_blank(type)` | Generates a 2D template for the top sheet |
 | `grill(width, height, r = 1000, poly = false, h = 0)` | A staggered array of 5mm holes to make grills in sheets. Can be constrained to be circular. Set `poly` `true` for printing, `false` for milling. |
@@ -4651,6 +4915,7 @@ fixing_blocks along the sides.
 | `bbox_name(type)` | Optional name if there is more than one box in a project |
 | `bbox_screw(type)` | Screw type for corner blocks |
 | `bbox_sheets(type)` | Sheet type for the sides |
+| `bbox_short_inserts(type)` | Set to use short inserts in the blocks |
 | `bbox_skip_blocks(type)` | List of fixing blocks to skip, used to allow a hinged panel for example |
 | `bbox_span(type)` | Maximum span between fixing blocks |
 | `bbox_star_washers(type)` | Set to false to remove star washers. |
@@ -4661,7 +4926,7 @@ fixing_blocks along the sides.
 ### Functions
 | Function | Description |
 |:--- |:--- |
-| `bbox(screw, sheets, base_sheet, top_sheet, span, size, name = "bbox", skip_blocks = [], star_washers = true, thin_blocks = false)` | Construct the property list for a butt_box |
+| `bbox(screw, sheets, base_sheet, top_sheet, span, size, name = "bbox", skip_blocks = [], star_washers = true, thin_blocks = false, short_inserts = false)` | Construct the property list for a butt_box |
 | `bbox_area(type)` | Internal surface area in m^2 |
 | `bbox_volume(type)` | Internal volume in litres |

@@ -5336,6 +5601,7 @@ This allows the hinges and one set of screws to belong to one assembly and the o
 |:--- |:--- |
 | `hinge_both(type)` | Both parts together for printing |
 | `hinge_fastened_assembly(type, thickness1, thickness2, angle, show_hinge = true)` | Assembled hinge with its fasteners |
+| `hinge_female(type)` | The half without the pin |
 | `hinge_male(type, female = false)` | The half with the stationary pin |
 | `hinge_screw_positions(type)` | Place children at the screw positions |

@@ -5546,6 +5812,72 @@ The STL includes a support membrane that needs to be cut out and a thread needs
 |   1 | metric_pot_knob.stl |


+<a href="#top">Top</a>
+
+---
+<a name="LED_bezel"></a>
+## LED_bezel
+Printed LED bezels for panel mounting
+
+[printed/led_bezel.scad](printed/led_bezel.scad) Implementation.
+
+[tests/LED_bezel.scad](tests/LED_bezel.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| `led_bezel_flange(type)` | Flange width |
+| `led_bezel_flange_t(type)` | Flange thickness |
+| `led_bezel_height(type)` | Total height |
+| `led_bezel_led(type)` | The LED |
+| `led_bezel_wall(type)` | Wall thickness |
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| `led_bezel(led, flange = 1, flange_h = 1, wall = 1, height = 8)` | Constructor |
+| `led_bezel_hole_r(type)` | Panel hole radius |
+| `led_bezel_r(type)` | Radius of the tube |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| `led_bezel(type)` | Makes the STL for the bezel |
+| `led_bezel_assembly(type, colour = "red")` | Led bezel with LED |
+| `led_bezel_fastened_assembly(type, t, colour = "red")` | Led bezel fitted to panel with  and retaining ring |
+| `led_bezel_retainer(type)` | Makes the STL for the retaining ring |
+
+![led_bezel](tests/png/led_bezel.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | `led(LED10mm, "orange")` |  LED 10 mm orange |
+|   1 | `led(LED3mm, "yellow")` |  LED 3 mm yellow |
+|   1 | `led(LED5mm, "blue")` |  LED 5 mm blue |
+|   1 | `led(LED8mm)` |  LED 8 mm red |
+
+### Printed
+| Qty | Filename |
+| ---:|:--- |
+|   1 | LED10mm_bezel.stl |
+|   1 | LED10mm_bezel_retainer.stl |
+|   1 | LED3mm_bezel.stl |
+|   1 | LED3mm_bezel_retainer.stl |
+|   1 | LED5mm_bezel.stl |
+|   1 | LED5mm_bezel_retainer.stl |
+|   1 | LED8mm_bezel.stl |
+|   1 | LED8mm_bezel_retainer.stl |
+
+### Assemblies
+| Qty | Name |
+| ---:|:--- |
+|   1 | LED10mm_orange_bezel_assembly |
+|   1 | LED3mm_yellow_bezel_assembly |
+|   1 | LED5mm_blue_bezel_assembly |
+|   1 | LED8mm_red_bezel_assembly |
+
+
 <a href="#top">Top</a>

 ---
@@ -6486,7 +6818,6 @@ Maths utilities for manipulating vectors and matrices.
 | `argcoth(x)` | inverse hyperbolic cotangent |
 | `argsinh(x)` | inverse hyperbolic sine |
 | `argtanh(x)` | inverse hyperbolic tangent |
-| `augment(m)` | Augment a matrix by adding an identity matrix to the right |
 | `circle_intersect(c1, r1, c2, r2)` | Calculate one point where two circles in the X-Z plane intersect, clockwise around c1 |
 | `cosh(x)` | hyperbolic cosine |
 | `coth(x)` | hyperbolic cotangent |
@@ -6506,11 +6837,8 @@ Maths utilities for manipulating vectors and matrices.
 | `rot2_z(a)` | Generate a 2x2 matrix to rotate around z |
 | `rot3_z(a)` | Generate a 3x3 matrix to rotate around z |
 | `rotate(a, v)` | Generate a 4x4 rotation matrix, `a` can be a vector of three angles or a single angle around `z`, or around axis `v` |
-| `rowswap(m, i, j)` | Swap two rows of a matrix |
 | `scale(v)` |  Generate a 4x4 matrix that scales by `v`, which can be a vector of xyz factors or a scalar to scale all axes equally |
 | `sinh(x)` | hyperbolic sine |
-| `solve(m, i = 0, j = 0)` | Solve each row ensuring diagonal is not zero |
-| `solve_row(m, i)` | Make diagonal one by dividing the row by it and subtract from other rows to make column zero |
 | `sqr(x)` | Square x |
 | `sumv(v)` | sum a vector of values that can be added with "+" |
 | `tanh(x)` | hyperbolic tangent |
@@ -6614,6 +6942,7 @@ Cylinder with a rounded end.
 |:--- |:--- |
 | `rounded_corner(r, h, r2, ir = 0)` | 2D version |
 | `rounded_cylinder(r, h, r2, ir = 0, angle = 360)` | Rounded cylinder given radius `r`, height `h`, optional internal radius `ir` and optional `angle` |
+| `rounded_top_rectangle(size, r, r2)` | Make a rounded rectangle with a rounded top edge |

 ![rounded_cylinder](tests/png/rounded_cylinder.png)

--- a/scripts/bom.py
+++ b/scripts/bom.py
@@ -140,7 +140,7 @@ class BOM:
        for part in sorted(self.vitamins):
            i += 1
            if ': ' in part:
-                part_no, description = part.split(': ')
+                part_no, description = part.split(': ', 1)
            else:
                part_no, description = "", part
            qty = self.vitamins[part].count
@@ -183,7 +183,7 @@ class BOM:

        for part in sorted(self.vitamins):
            if ': ' in part:
-                part_no, description = part.split(': ')
+                part_no, description = part.split(': ', 1)
            else:
                part_no, description = "", part
            if breakdown:
--- a/scripts/tests.py
+++ b/scripts/tests.py
@@ -259,11 +259,11 @@ def tests(tests):
                    things = BOM[thing]
                    if things:
                        body += ['### %s\n| Qty | %s |\n| ---:|:--- |%s' % (thing.title(), heading, ':---|' if '|' in heading else '')]
-                        for item in sorted(things, key = lambda s: s.split(":")[-1]):
+                        for item in sorted(things, key = lambda s: s.split(":",1)[-1]):
                            name = item
                            desc = ''
                            if thing == "vitamins":
-                                vit = item.split(':')
+                                vit = item.split(':', 1)
                                name = '`' + vit[0] + '`' if vit[0] else ''
                                while '[[' in name and ']]' in name:
                                    i = name.find('[[')
--- a/scripts/views.py
+++ b/scripts/views.py
@@ -303,7 +303,7 @@ def views(target, do_assemblies = None):
                grand_total2 = 0
                heading = headings[t][0].upper() + headings[t][1:]
                print(('|  ' * len(global_bom) + '| | **%s** |') % heading, file = doc_file)
-                for thing in sorted(things[t], key = lambda s: s.split(":")[-1]):
+                for thing in sorted(things[t], key = lambda s: s.split(":",1)[-1]):
                    for ass in global_bom:
                        count = ass[t][thing]["count"] if thing in ass[t] else 0
                        print('| %s ' % pad(count if count else '.', 2, 1), file = doc_file, end = '')
@@ -313,7 +313,7 @@ def views(target, do_assemblies = None):
                        else:
                            totals[name] = count
                        grand_total2 += count
-                    print('|  %s | %s |' % (pad(things[t][thing], 2, 1), pad(thing.split(":")[-1], 2)), file = doc_file)
+                    print('|  %s | %s |' % (pad(things[t][thing], 2, 1), pad(thing.split(":",1)[-1], 2)), file = doc_file)

                grand_total = 0
                for ass in global_bom:
@@ -344,8 +344,8 @@ def views(target, do_assemblies = None):
                print("### Vitamins",         file = doc_file)
                print("|Qty|Description|",    file = doc_file)
                print("|---:|:----------|",    file = doc_file)
-                for v in sorted(vitamins, key = lambda s: s.split(":")[-1]):
-                    print("|%d|%s|" % (vitamins[v]["count"], v.split(":")[1]),     file = doc_file)
+                for v in sorted(vitamins, key = lambda s: s.split(":",1)[-1]):
+                    print("|%d|%s|" % (vitamins[v]["count"], v.split(":",1)[1]),     file = doc_file)
                print("\n", file = doc_file)

            printed = ass["printed"]
--- a/tests/LED_bezel.scad
+++ b/tests/LED_bezel.scad
@@ -0,0 +1,37 @@
+//
+// NopSCADlib Copyright Chris Palmer 2018
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../core.scad>
+use <../utils/layout.scad>
+
+include <../vitamins/leds.scad>
+use <../printed/led_bezel.scad>
+
+module led_bezels()
+    layout([for(l = LEDs) led_diameter(l)], 6) let(l = LEDs[$i], b = led_bezel(l))
+        if($preview)
+            led_bezel_fastened_assembly(b, 3, ["yellow", "blue", "red", "orange"][$i % 4]);
+        else {
+            led_bezel(b);
+
+            translate([0, -20])
+                led_bezel_retainer(b);
+        }
+
+
+led_bezels();
--- a/tests/LEDs.scad
+++ b/tests/LEDs.scad
@@ -23,7 +23,7 @@ include <../vitamins/leds.scad>

 module leds()
    layout([for(l = LEDs) led_diameter(l)], 5)
-        led(LEDs[$i], ["green", "blue", "red"][$i % 3]);
+        led(LEDs[$i], ["green", "blue", "red", "orange"][$i % 4]);

 if($preview)
    leds();
--- a/tests/PCB.scad
+++ b/tests/PCB.scad
@@ -21,6 +21,7 @@ include <../vitamins/microswitches.scad>
 include <../vitamins/d_connectors.scad>
 include <../vitamins/leds.scad>
 include <../vitamins/axials.scad>
+include <../vitamins/radials.scad>
 include <../vitamins/smds.scad>
 include <../vitamins/7_segments.scad>
 include <../vitamins/potentiometers.scad>
@@ -61,27 +62,41 @@ test_pcb = ["test_pcb", "Test PCB",
    [
        [ 20, -5,  180, "trimpot10"],
        [ 20, -15,  90, "trimpot10", true],
-        [  7,  2,   90, "smd_led", LED1206, "blue"],
-        [ 10,  2,   90, "smd_led", LED0805, "red"],
+        [ 19,  2,   90, "smd_led", LED1206, "blue"],
+        [ 16,  2,   90, "smd_led", LED0805, "red"],
        [ 13,  2,   90, "smd_led", LED0603, "orange"],
-        [ 16,  2,   90, "smd_res", RES1206, "1K"],
-        [ 19,  2,   90, "smd_res", RES0805, "1K"],
-        [ 22,  2,   90, "smd_res", RES0603, "1K"],
-        [ 25,  2,   90, "smd_cap", CAP1206, 1.5],
-        [ 28,  2,   90, "smd_cap", CAP0805, 1.0],
-        [ 31,  2,   90, "smd_cap", CAP0603, 0.7],
-        [ 16,  6,  -90, "smd_sot", SOT23, "2N7000"],
-        [ 28,  20, -90, "smd_sot", SOT223, "LM117"],
+        [ 19,  6,  -90, "smd_res", RES1206, "1M"],
+        [ 16,  6,  -90, "smd_res", RES0805, "1K"],
+        [ 13,  6,  -90, "smd_res", RES0603, "100"],
+        [ 10,  6,  -90, "smd_res", RES0502, "10"],
+        [  7,  6,  -90, "smd_res", RES0402, "1"],
+        [ 19, 10,   90, "smd_cap", CAP1206, 1.5, "1uF"],
+        [ 16, 10,   90, "smd_cap", CAP0805, 1.0, "100nF"],
+        [ 13, 10,   90, "smd_cap", CAP0603, 0.7, "10nF"],
+        [ 10, 10,   90, "smd_cap", CAP0502, 0.6, "10nF"],
+        [  7, 10,   90, "smd_cap", CAP0402, 0.5, "10nF"],
+        [ 19, 16,  -90, "smd_tant", TANT_C, "107C"],
+        [ 13, 16,  -90, "smd_tant", TANT_B, "106A"],
+        [  7, 16,  -90, "smd_tant", TANT_A, "105e"],
+        [ 32,  3,  -90, "smd_diode",DO214AC, "SS34"],
+        [ 26,  2,  -90, "smd_pot", TC33X1, "10K"],
+        [ 26,  6,  -90, "smd_coax",U_FL_R_SMT_1],

-        [ 10,  10,   0, "2p54header", 4, 1],
-        [ 25,  10,   0, "2p54header", 5, 1, false, "blue" ],
-        [ 10,  20,   0, "2p54boxhdr", 4, 2],
-        [ 10,  30,   0, "2p54socket", 6, 1],
-        [ 25,  30,   0, "2p54socket", 4, 1, false, 0, false, "red" ],
-        [ 65,  50,   0, "led", LED3mm, "red"],
-        [ 75,  50,   0, "led", LED5mm, "orange"],
-        [ 90,  50,   0, "led", LED10mm, "yellow"],
-        [ 10,  45, 180, "rj45"],
+        [ 26, 10,  -90, "smd_sot", SOT23, "2N7000"],
+        [ 28, 16,  -90, "smd_sot", SOT223, "LM117"],
+
+        [ 45,  35,   0, "2p54header", 4, 1],
+        [ 60,  35,   0, "2p54header", 5, 1, false, "blue" ],
+        [ 80,  33,   0, "2p54boxhdr", 4, 2],
+        [ 45,  30,   0, "2p54socket", 4, 1, false, 0, false, "red" ],
+        [ 60,  30,   0, "2p54socket", 6, 1],
+
+        [ 59,  60, 180, "led", LED3mm, "red"],
+        [ 66,  60, 180, "led", LED5mm, "orange"],
+        [ 77,  60, 180, "led", LED8mm, "blue"],
+        [ 90,  60, 180, "led", LED10mm, "yellow"],
+        [ 10,  35, 180, "rj45"],
+        [  7,  50, 180, "usb_vAx1"],
        [  8,  65, 180, "usb_A"],
        [  8, 105, 180, "usb_Ax2"],
        [  7,  85, 180, "molex_usb_Ax1"],
@@ -99,28 +114,41 @@ test_pcb = ["test_pcb", "Test PCB",
        [ 25, 200,   0, "buzzer", 4.5, 8.5],
        [ 25, 218,   0, "buzzer"],

-        [ 65,   9,   0, "link", inch(0.4)],
-        [ 65,  12,   0, "ax_res", res1_8, 1000],
-        [ 65,  17,   0, "ax_res", res1_4, 10000],
-        [ 65,  22,   0, "ax_res", res1_2, 100000],
-        [ 55,  22,   0, "vero_pin"],
-        [ 55,  17,   0, "vero_pin", true],
-        [ 55,   9,   0, "link", 0, 5],
+        [ 45,   5,   0, "link", inch(0.4), 0.75, undef, undef, [1.5, "red"]], // Sleeved link
+        [ 45,   9,   0, "link", inch(0.4)], // Flat link
+        [ 45,  12,   0, "ax_res", res1_8, 1000],
+        [ 45,  17,   0, "ax_res", res1_4, 10000],
+        [ 45,  22,   0, "ax_res", res1_2, 100000],
+        [ 35,  22,   0, "vero_pin"],
+        [ 35,  17,   0, "vero_pin", true],
+        [ 35,   9,   0, "link", 0, 5], // Vertical wire

-        [ 80,   9,   0, "link", inch(0.2), inch(0.4)],
-        [ 80,  12,   0, "ax_res", res1_8, 1000000, 1, inch(0.1)],
-        [ 80,  17,   0, "ax_res", res1_4, 100,     2, inch(0.1)],
-        [ 80,  22,   0, "ax_res", res1_2, 10,     10, inch(0.2)],
+        [ 60,   9,   0, "link", inch(0.2), inch(0.4)], // Raised link
+        [ 60,  12,   0, "ax_res", res1_8, 1000000, 1, inch(0.1)],
+        [ 60,  17,   0, "ax_res", res1_4, 100,     2, inch(0.1)],
+        [ 60,  22,   0, "ax_res", res1_2, 10,     10, inch(0.2)],

-        [ 60,   3,   0, "flex"],
-        [ 50,  15, -90, "flat_flex"],
-        [ 40,  15, -90, "flat_flex", true],
+        [ 33,  110, -90, "rd_xtal", HC49,    "4MHz" ],
+        [ 28,  110, -90, "rd_xtal", HC49_4H, "10MHz" ],
+        [ 28,  103, -90, "rd_xtal", C_002RX, "60KHz", 2 ],

-        [ 50,  50,   0, "molex_hdr", 2],
-        [ 50,  60,   0, "jst_xh", 2],
-        [ 50,  70, 180, "term254", 3],
-        [ 63,  70, 180, "term254", 3, undef, grey(20)],
-        [ 75,  70, 180, "gterm508",2, undef, "blue"],
+        [ 30,  130,-90, "rd_xtal", ACT1100, "40MHz", 0.5 ],
+        [ 30,  150,-90, "rd_xtal", ACT1700, "80MHz", 0.5 ],
+
+        [ 77,  15, -90, "flex"],
+        [ 95,  15, -90, "flat_flex"],
+        [ 87,  15, -90, "flat_flex", true],
+
+        [ 47,  55,   0, "molex_hdr", 2],
+        [ 51,  48,   0, "molex_hdr", 2, 1],
+        [ 51,  41,   0, "molex_hdr", 2, -1],
+        [ 45,  65,   0, "jst_xh", 2],
+        [ 54,  65,   0, "jst_ph", 2],
+        [ 61,  65,   0, "jst_zh", 2],
+
+        [ 50,  75, 180, "term254", 3],
+        [ 63,  75, 180, "term254", 3, undef, grey(20)],
+        [ 75,  75, 180, "gterm508",2, undef, "blue"],

        [ 50,  90, 180, "gterm35", 4, [1,2]],
        [ 63,  90, 180, "gterm35", 4, [1,2], "red"],
@@ -141,7 +169,10 @@ test_pcb = ["test_pcb", "Test PCB",
        [ 52, 200,   0, "pcb", 11, TMC2130 ],
        [ 80, 210,   0, "pdip", 24, "27C32", true, inch(0.6) ],
        [ 80, 180,   0, "pdip", 8, "NE555" ],
-        [ 80, 166, -90, "smd_soic", SOIC18, "PIC18F88"],
+        [ 71, 180,    0, "smd_inductor", IND2525, "4R7"],
+
+        [ 87, 166, -90, "smd_soic", SOIC18, "PIC18F88"],
+        [ 78, 166, -90, "smd_soic", SOIC14, "74HC00"],
        [ 71, 166, -90, "smd_soic", SOIC16, "ICL323"],
        [ 64, 166, -90, "smd_soic", SOIC8, "M34063"],
        [ 80, 150,   0, "chip", 10, 5, 1, grey(20)],
@@ -152,7 +183,7 @@ test_pcb = ["test_pcb", "Test PCB",
        [ 50, 240,   0, "potentiometer"],
        [ 75, 240,   0, "potentiometer", KY_040_encoder, 8],
        [ 30,  85, -90, "7seg", WT5011BSR, 2],
-        [ 30, 55, -90, "D_plug", DCONN9],
+        [ 30,  55, -90, "D_plug", DCONN9],
    ],
    // accessories
    []
--- a/tests/PCBs.scad
+++ b/tests/PCBs.scad
@@ -39,6 +39,12 @@ module pcbs() {
            translate([0, -pcb_width(perfboards[$i]) / 2])
                pcb_assembly(perfboards[$i], 5 + $i, 3);

+    translate([0, 125])
+        layout([for(p = big_pcbs) spacing(p)], 0)
+            translate([0, pcb_length(big_pcbs[$i]) / 2])
+                rotate(90)
+                    pcb_assembly(big_pcbs[$i], 5 + $i, 3);
+
    for(p = pcbs_not_shown)
        hidden()
            pcb(p);
--- a/tests/SMDs.scad
+++ b/tests/SMDs.scad
@@ -23,7 +23,7 @@ include <../vitamins/smds.scad>

 module smds() {
    layout([for(r = smd_resistors) smd_res_size(r).x], 1)
-        smd_resistor(smd_resistors[$i], ["1R0", "10M", "100K"][$i % 3]);
+        smd_resistor(smd_resistors[$i], ["1R0", "10", "100", "10M", "100K"][$i % 5]);

    translate([0, 3])
        layout([for(l = smd_leds) smd_led_size(l).x], 1)
@@ -34,16 +34,40 @@ module smds() {
            let(c = smd_capacitors[$i])
                smd_capacitor(c, smd_cap_size(c).y * 0.8);

-    translate([0, 12])
+    translate([0, 9])
+        layout([for(t = smd_tants) smd_tant_leads(t).x], 1)
+            let(t = smd_tants[$i])
+                smd_tant(t, ["105e","106J", "107A"][$i]);
+
+    translate([0, 12.5])
+        layout([for(d = smd_diodes) smd_diode_leads(d).x], 1)
+            let(d = smd_diodes[$i])
+                smd_diode(d, ["SS34"][$i]);
+
+    translate([0, 24])
        layout([for(s = smd_sots) smd_sot_size(s).x], 1)
            let(s = smd_sots[$i])
                smd_sot(s, ["2N7000", "FZT851"][$i]);

-    translate([0, 20])
+    translate([0, 18])
+        layout([for(p = smd_pots) smd_pot_size(p).x], 1)
+            let(p = smd_pots[$i])
+                smd_pot(p, "10K");
+
+    translate([6, 18])
+        layout([for(c = smd_coaxs) smd_coax_base_size(c).x], 1)
+            let(c = smd_coaxs[$i])
+                smd_coax(c);
+
+    translate([0, 31])
        layout([for(s = smd_soics) smd_soic_size(s).x], 1)
            let(s = smd_soics[$i])
                smd_soic(s, s[0]);

+    translate([0, 39])
+        layout([for(i = smd_inductors) smd_inductor_leads(i).x], 1)
+            let(i = smd_inductors[$i])
+                smd_inductor(i, "4R7");
 }

 if($preview)
--- a/tests/axials.scad
+++ b/tests/axials.scad
@@ -28,6 +28,10 @@ module axials() {
        rotate(90)
            wire_link(0.8, inch(0.4));

+    pcb_grid(pcb, 1, 1.5)
+        rotate(90)
+            wire_link(0.8, inch(0.3), 0.75, sleeve = [1.5, "red"]);
+
    pcb_grid(pcb, 0, 7)
        wire_link(0.8, 0, 5);

--- a/tests/camera_housing.scad
+++ b/tests/camera_housing.scad
@@ -26,8 +26,9 @@ include <../vitamins/cameras.scad>
 use <../vitamins/pcb.scad>

 module camera_housings()
-    layout([for(c = cameras) pcb_length(camera_pcb(c))], 15, false) let(c = cameras[$i])
-        camera_fastened_assembly(c, 3);
+    layout([for(c = cameras) pcb_length(camera_pcb(c))], 10, false) let(c = cameras[$i])
+        if(pcb_screw(camera_pcb(c)))
+            camera_fastened_assembly(c, 3);

 if($preview)
    camera_housings();
--- a/tests/displays.scad
+++ b/tests/displays.scad
@@ -24,9 +24,10 @@ use <../vitamins/pcb.scad>

 module displays()
    layout([for(d = displays) pcb_length(display_pcb(d))], 10)
-        translate([0, pcb_width(displays[$i]) / 2])
-            vflip()
-                display(displays[$i]);
+        let(d = displays[$i], offset = display_pcb_offset(d))
+            translate([-offset.x, pcb_width(display_pcb(d)) / 2 - offset.y])
+                vflip()
+                    display(d);

 if($preview)
    let($show_threads = true)
--- a/tests/fastons.scad
+++ b/tests/fastons.scad
@@ -0,0 +1,35 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../utils/core/core.scad>
+
+include <../vitamins/fastons.scad>
+
+module fastons()
+    for(i = [0, len(fastons) - 1])
+        translate([i * 20, 0])
+            let(f = fastons[i]) {
+                rotate(180)
+                    faston(f);
+
+                translate([10, 0])
+                    rotate(180)
+                        faston(f, true);
+            }
+
+fastons();
--- a/tests/leadnuts.scad
+++ b/tests/leadnuts.scad
@@ -25,6 +25,26 @@ module leadnuts()
    layout([for(n = leadnuts) leadnut_flange_dia(n)], 5)
        leadnut(leadnuts[$i]);

+module leadnuthousings()
+    layout([for(n = leadnuthousings) leadnuthousing_width(n)], 5) {
+        rotate([0,0,270]) {
+            leadnuthousing(leadnuthousings[$i]);
+            explode(15)
+                leadnuthousing_nut_position(leadnuthousings[$i])
+                    leadnut(leadnuthousing_nut(leadnuthousings[$i]));
+            explode(17 + leadnuthousing_nut_screw_length(leadnuthousings[$i]))
+                translate_z(leadnuthousing_height(leadnuthousings[$i])/2)
+                    leadnuthousing_nut_screw_positions(leadnuthousings[$i])
+                        screw(leadnut_screw(
+                            leadnuthousing_nut(leadnuthousings[$i])),
+                            leadnuthousing_nut_screw_length(leadnuthousings[$i])
+                        );
+        }
+    }
+
 if($preview)
-    let($show_threads = true)
+    let($show_threads = true) {
        leadnuts();
+        translate([0,50,0])
+            leadnuthousings();
+    }
--- a/tests/photo_interrupters.scad
+++ b/tests/photo_interrupters.scad
@@ -0,0 +1,28 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../utils/core/core.scad>
+include <../vitamins/photo_interrupters.scad>
+
+use <../utils/layout.scad>
+
+module photo_interrupters()
+    layout([for(l = photo_interrupters) pi_base_length(l)], 5, true)
+        photo_interrupter(photo_interrupters[$i]);
+
+photo_interrupters();
--- a/tests/png/axials.png
+++ b/tests/png/axials.png
--- a/tests/png/bezier.png
+++ b/tests/png/bezier.png
--- a/tests/png/camera_housing.png
+++ b/tests/png/camera_housing.png
--- a/tests/png/cameras.png
+++ b/tests/png/cameras.png
--- a/tests/png/displays.png
+++ b/tests/png/displays.png
--- a/tests/png/fan_guard.png
+++ b/tests/png/fan_guard.png
--- a/tests/png/fastons.png
+++ b/tests/png/fastons.png
--- a/tests/png/green_terminals.png
+++ b/tests/png/green_terminals.png
--- a/tests/png/leadnuts.png
+++ b/tests/png/leadnuts.png
--- a/tests/png/led_bezel.png
+++ b/tests/png/led_bezel.png
--- a/tests/png/leds.png
+++ b/tests/png/leds.png
--- a/tests/png/opengrab.png
+++ b/tests/png/opengrab.png
--- a/tests/png/panel_meters.png
+++ b/tests/png/panel_meters.png
--- a/tests/png/pcb.png
+++ b/tests/png/pcb.png
--- a/tests/png/pcbs.png
+++ b/tests/png/pcbs.png
--- a/tests/png/photo_interrupters.png
+++ b/tests/png/photo_interrupters.png
--- a/tests/png/radials.png
+++ b/tests/png/radials.png
--- a/tests/png/rounded_cylinder.png
+++ b/tests/png/rounded_cylinder.png
--- a/tests/png/screws.png
+++ b/tests/png/screws.png
--- a/tests/png/shaft_couplings.png
+++ b/tests/png/shaft_couplings.png
--- a/tests/png/sheets.png
+++ b/tests/png/sheets.png
--- a/tests/png/smds.png
+++ b/tests/png/smds.png
--- a/tests/png/spools.png
+++ b/tests/png/spools.png
--- a/tests/png/stepper_motors.png
+++ b/tests/png/stepper_motors.png
--- a/tests/png/tubings.png
+++ b/tests/png/tubings.png
--- a/tests/png/veroboard.png
+++ b/tests/png/veroboard.png
--- a/tests/radials.scad
+++ b/tests/radials.scad
@@ -0,0 +1,32 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../core.scad>
+include <../vitamins/pcbs.scad>
+
+module radials() {
+    pcb = PERF60x40;
+    pcb(pcb);
+
+    for(i = [0 : len(rd_xtals) - 1])
+        pcb_grid(pcb, [0.5, 1, 1.5, 9, 1][i], [0, 2, 6.5, 6.5, 11][i])
+            rd_xtal(rd_xtals[i], value = rd_xtals[i][0], z = 1.5, pitch = [inch(0.1), inch(0.2), [inch(0.3), inch(0.3)], [inch(0.6), inch(0.3)], inch(0.2)][i]);
+}
+
+if($preview)
+    radials();
--- a/tests/rounded_cylinder.scad
+++ b/tests/rounded_cylinder.scad
@@ -27,6 +27,9 @@ module rounded_cylinders() {

    translate([30, 10])
        rounded_cylinder(10, 20, 3, 5, 270);
+
+    translate([65, 10])
+        rounded_top_rectangle([30, 20, 5], 3, 2);
 }

 rounded_cylinders();
--- a/tests/screws.scad
+++ b/tests/screws.scad
@@ -56,7 +56,7 @@ module screws() {
                    screw(screw, length);
            }
        }
-        translate([20, 40, -15])
+        translate([20, 60, -15])
            polysink_stl();
 }

--- a/tests/tubings.scad
+++ b/tests/tubings.scad
@@ -22,7 +22,7 @@ use <../utils/layout.scad>
 include <../vitamins/tubings.scad>

 module tubings()
-    layout([for(t = tubings) tubing_od(t)], 8)
+    layout([for(t = tubings) tubing_od(t)], 5)
        tubing(tubings[$i]);

 if($preview)
--- a/tests/veroboard.scad
+++ b/tests/veroboard.scad
@@ -36,11 +36,11 @@ z_vb = ["z_vb", "z_bed_terminal", 5, z_cable_ways / 2 + 12, inch(0.1), false, M3

 module veroboard_test() translate([vero_length(z_vb) / 2, vero_width(z_vb) / 2]) {
    vflip()
-        veroboard_assembly(z_vb, 12, 3);
+        veroboard_assembly(z_vb);

    translate([30, 0])
        rotate(180)
-            veroboard_assembly(z_vb, 12, 3);
+            veroboard_fastened_assembly(z_vb, 12, 3);
 }

 if($preview)
--- a/utils/core/global.scad
+++ b/utils/core/global.scad
@@ -76,7 +76,7 @@ module render_if(render = true, convexity = 2)      //! Renders an object if `re

 module extrude_if(h, center = true)                 //! Extrudes 2D object to 3D when `h` is nonzero, otherwise leaves it 2D
    if(h)
-        linear_extrude(h, center = center, convexity = 2) // 3D
+        linear_extrude(h, center = center, convexity = 5) // 3D
            children();
    else
        children();                                 // 2D
--- a/utils/maths.scad
+++ b/utils/maths.scad
@@ -118,24 +118,24 @@ module position_children(list, t) //! Position children if they are on the Z = 0

 // Matrix inversion: https://www.mathsisfun.com/algebra/matrix-inverse-row-operations-gauss-jordan.html

-function augment(m) = let(l = len(m), n = identity(l)) [ //! Augment a matrix by adding an identity matrix to the right
+function augment(m) = let(l = len(m), n = identity(l)) [ // Augment a matrix by adding an identity matrix to the right
    for(i = [0 : l - 1])
        concat(m[i], n[i])
 ];

-function rowswap(m, i, j) = [ //! Swap two rows of a matrix
+function rowswap(m, i, j) = [ // Swap two rows of a matrix
    for(k = [0 : len(m) - 1])
        k == i ? m[j] : k == j ? m[i] : m[k]
 ];

-function solve_row(m, i) = let(diag = m[i][i]) [ //! Make diagonal one by dividing the row by it and subtract from other rows to make column zero
+function solve_row(m, i) = let(diag = m[i][i]) [ // Make diagonal one by dividing the row by it and subtract from other rows to make column zero
    for(j = [0 : len(m) - 1])
        i == j ? m[j] / diag : m[j] - m[i] * m[j][i] / diag
 ];

 function nearly_zero(x) = abs(x) < 1e-5; //! True if x is close to zero

-function solve(m, i = 0, j = 0) = //! Solve each row ensuring diagonal is not zero
+function solve(m, i = 0, j = 0) = // Solve each row ensuring diagonal is not zero
    i < len(m) ?
        assert(i + j < len(m), "matrix is singular")
         solve(!nearly_zero(m[i + j][i]) ? solve_row(j ? rowswap(m, i, i + j) : m, i) : solve(m, i, j + 1), i + 1)
--- a/utils/rounded_cylinder.scad
+++ b/utils/rounded_cylinder.scad
@@ -45,3 +45,22 @@ module rounded_cylinder(r, h, r2, ir = 0, angle = 360) //! Rounded cylinder give
    rotate_extrude(angle = angle)
        rounded_corner(r, h, r2, ir);
 }
+
+module rounded_top_rectangle(size, r, r2) { //! Make a rounded rectangle with a rounded top edge
+    hull() {
+        translate([size.x / 2 - r, size.y / 2 - r])
+            rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+
+        translate([-size.x / 2 + r, size.y / 2 - r])
+            rotate(90)
+                rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+
+        translate([-size.x / 2 + r, -size.y / 2 + r])
+            rotate(180)
+                rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+
+        translate([size.x / 2 - r, -size.y / 2 + r])
+            rotate(270)
+                rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+    }
+}
--- a/vitamins/axial.scad
+++ b/vitamins/axial.scad
@@ -23,8 +23,9 @@
 include <../utils/core/core.scad>
 include <../utils/round.scad>

-module wire_link(d, l, h = 1, tail = 3) { //! Draw a wire jumper link. If `l` is zero then a vertical wire is drawn.
-    vitamin(str("wire_link(", d, ", ", l, arg(h, 1, "h"), arg(tail, 3, "tail"),  "): Wire link ", d, "mm x ", l ? str(l / inch(1), "\"") : str(h + tail,"mm")));
+module wire_link(d, l, h = 1, tail = 3, sleeve = false) { //! Draw a wire jumper link. `sleeve` can be a list with the diameter and colour. If `l` is zero then a vertical wire is drawn.
+    vitamin(str("wire_link(", d, ", ", l, arg(h, 1, "h"), arg(tail, 3, "tail"), arg(sleeve, false, "sleeve"),
+                             "): Wire link ", d, "mm x ", l ? str(l / inch(1), "\"") : str(h + tail,"mm"), sleeve ? str(" with ", sleeve[1], " sleeving") : ""));
    r = d;
    $fn = 32;

@@ -48,6 +49,12 @@ module wire_link(d, l, h = 1, tail = 3) { //! Draw a wire jumper link. If `l` is
    else
        translate_z(-tail)
            cylinder(d = d, h = tail + h);
+
+    if(sleeve)
+        color(sleeve[1])
+            translate_z(h)
+                rotate([0, 90, 0])
+                    cylinder(d = sleeve[0], h = l - 2 * r, center = true);
 }

 function ax_res_wattage(type) = type[1]; //! Power rating
--- a/vitamins/camera.scad
+++ b/vitamins/camera.scad
@@ -91,7 +91,7 @@ module camera(type, show_lens = true, fov_distance = 0, fov = undef) {
            color("orange")
                hull() {
                    translate_z(flex.y /2)
-                        translate(camera_lens_offset(type) + [0, camera_lens(type)[0][0].y / 2])
+                        translate(camera_lens_offset(type) + [0, sign(pos.y) * camera_lens(type)[0][0].y / 2, 0])
                            cube([flex.x, eps, flex.y], center = true);

                    translate_z(conn.z - flex.y)
--- a/vitamins/cameras.scad
+++ b/vitamins/cameras.scad
@@ -70,6 +70,92 @@ rpi_camera = ["rpi_camera", "Raspberry Pi focusable camera", rpi_camera_pcb, [0,
    [0, 18 - 1.5 - 2.5], [8, 5, 1.6]
 ];

-cameras = [rpi_camera_v1, rpi_camera_v2, rpi_camera];
+esp32_cam_x = 1; // Seems to vary as mine is offset but pictures on the web show it more centered.
+
+ESP32_module =  ["", "", 18, 26, 0.8,   0, 0.7, [1.1, 1.1, 0, gold], grey(18), false, [
+        for(x = [0,1], y = [0:13]) [x * 18, y * 1.27 + 1.4],       // Hole positions on the edge
+        for(x = [0:9]) [18 / 2 + (x - 4.5) * 1.27, 0],
+
+    ],
+    [
+        [18 / 2,        9.7 - 3.4 / 2 , 0, "block", 15.75, 17.6 - 3.4, 2.2, silver, false, 0.3, 0.3], // can
+        [18 / 2 - 2.65, 9.7 ,           0, "block", 10.4,  17.6,       2.2, silver, false, 0.3, 0.3], // can
+        [12.7, -6.5,  45, "smd_res", RES0502],
+        [15.15, -8.3, -90, "smd_coax", U_FL_R_SMT_1],
+        // Antenna
+        let(x = [0.9, 3.2, 5.7, 8.1, 10.6, 12.8, 15, 15.2])
+        each [
+            for(i = [0, 5,6,7])  [x[i],                -2.8,  0, "block", 0.6,             4.8, 0.2, gold], // long verticals
+            for(i = [1: 4])      [x[i],                -2.05, 0, "block", 0.6,             3.3, 0.2, gold], // short verticals
+            for(i = [0, 2, 4,5])[(x[i] + x[i + 1]) / 2, -0.7, 0, "block", x[i + 1] - x[i], 0.6, 0.2, gold], // top horizontals
+            for(i = [1, 3])     [(x[i] + x[i + 1]) / 2, -3.4, 0, "block", x[i + 1] - x[i], 0.6, 0.2, gold], // lower horizontals
+        ]
+     ],
+];
+
+ESP32_CAM_pcb = ["", "", 27, 40, 1.7, 2.5, 0, 0, grey(15), false, [],
+    [
+        [27 / 2, 26 / 2, 0, "-pcb", 0, ESP32_module],
+        for(side = [-1, 1]) [side * inch(0.45) + 27 / 2, -(4.2 + inch(.35)), 0, "-2p54header", 1, 8],
+        [ 27 / 2, -8, 90, "uSD", [14.85, 14.65, 1.8]],
+        [ 27 / 2 + 1, 15, 0, "flat_flex", false],
+        [ 27 / 2 + inch(0.45), 10.5, 0, "block", 3, 3, 0.8, grey(90)],
+        [ 27 / 2 + inch(0.45), 10.5, 0, "block", 2.9, 2.9, 0.81, "yellow", true, 2.9 / 2 - eps],
+        [ 27 / 2, 3,                 0, "text", 15, 2, "ESP32-CAM", "Liberation Sans:style=Bold"],
+        [0.5, -(4.7 + inch(.35)), 90, "text", inch(0.75), 0.9, "IO4 IO2 IO14 IO15 IO13 IO12 GND  5V", "Liberation Sans:style=Bold"],
+        [26.5, -(4.6 + inch(.35)), -90, "text", inch(0.77), 0.9, "3V3 1O16 IO0 GND VCC U0R U0T GND", "Liberation Sans:style=Bold"],
+        [5.5, -3.3, 90, "-chip", 4,  3, 1.6, silver],   // Mock button surround
+        [5.5, -3.3, 90, "-chip", 1.8,0, 2.0, grey(20)], // Mock button
+       [10, -10.8, 0, "-smd_led", LED0603, "red"],
+        [-6.5, -5,  0, "-smd_soic", SOIC8],
+        [12.2, -4.5, 180, "-smd_sot", SOT223, "AMS1117"],
+        [25.3, 14, 0,   "smd_sot", SOT23],
+        [3.0,  14, 0,   "smd_sot", SOT23],
+        [8,    20, 90,  "smd_sot", SOT23],
+        [16,   20, 90,  "smd_sot", SOT23],
+        [3.0,  11.5,0,  "smd_res", RES0502],
+        [2.9,  10.3,0,  "smd_res", RES0502],
+        [5.4,  20,  90, "smd_cap", CAP0603, 0.5],
+        [11.5, 20,  90, "smd_cap", CAP0603, 0.5],
+        [18.7, 20,  90, "smd_cap", CAP0603, 0.5],
+        [19.9, 20,  90, "smd_cap", CAP0402, 0.3],
+        for(i = [0, 1, 2, 4]) [7.6 + i * 1.09, 8.8, 90, "smd_res", RES0502],
+        for(i = [0 : 3]) [-4.8, 20 + i * 1.09, 0, "smd_res", RES0502],
+        for(i = [3, 5, 8]) [7.6 + i * 1.09, 8.8, 90, "smd_cap", CAP0502, 0.5],
+        [-8.1, 23, 90, "smd_res", RES0502],
+        [-9.2, 23, 90, "smd_res", RES0502],
+        [-6.3, 23.3, 180, "text", 0.8, 0.7, "5V", "Liberation Sans:style=Bold"],
+        [-6.5, 22.2, 180, "text", 1.2, 0.7, "3V3", "Liberation Sans:style=Bold"],
+        [8, -3.3, 90, "-smd_cap", CAP0603, 0.5],
+        [2, -2, 0, "-text", 2.3, 1, "RST", "Liberation Sans:style=Bold"],
+        [10,-9.4, 0, "-text", 3.1, 1, "LED1", "Liberation Sans:style=Bold"],
+        [12.4, -10.8, 0, "-smd_res", RES0502],
+        [13.7, -9.4,  0, "-smd_cap", CAP0603, 0.5],
+        [17.2,-9.4,   0, "-smd_cap", CAP0502, 0.4],
+        [22.1, -10.8, 0, "-smd_res", RES0502],
+        [16.9, -4.8, 90, "-smd_res", RES0502],
+        [2.2,  9.0,  90, "-smd_cap", CAP0502, 0.4],
+        [2.2, 11.6,  90, "-smd_cap", CAP0502, 0.4],
+        [2.2, 14.2,  90, "-smd_res", RES0502],
+        [5.9, -9.4,  90, "-smd_tant", TANT_B, "107A"],
+
+     ],
+    [],
+    [(27 - inch(0.9)) / 2, 40 - 4.2 - inch(0.7), 2, 8, silver, inch(0.9), inch(0.1)], // 8x2 grid of holes
+];
+
+ESP32_CAM = ["ESP32_CAM", "ESP32-CAM Camera module", ESP32_CAM_pcb, [esp32_cam_x, pcb_width(ESP32_CAM_pcb) / 2 - 12, 1.8],
+    [
+        [[8, 8, 2.4], 0],
+        [[0, 0, 4.2], 4],
+        [[0, 0, 6.3], 3.5, [1, 1, 0.5]],
+    ],
+    [1, -4], [15, 2.2, 1],
+    [54, 41] // FOV
+];
+
+
+
+cameras = [rpi_camera_v1, rpi_camera_v2, rpi_camera, ESP32_CAM];

 use <camera.scad>
--- a/vitamins/component.scad
+++ b/vitamins/component.scad
@@ -41,7 +41,7 @@ function resistor_sleeved(type)       = type[9]; //! Are the leads sleeved

 splay_angle = 2; // radial lead splay angle

-module resistor(type) { //! Draw specified type of resitor
+module resistor(type) { //! Draw specified type of resistor
    length = resistor_length(type);
    dia = resistor_diameter(type);

@@ -190,10 +190,7 @@ module al_clad_resistor(type, value, leads = true) { //! Draw an aluminium clad
                cylinder(r = leads ? 3 : height / 2 - 2, h = length + eps, center = true);
 }

-module al_clad_resistor_assembly(type, value, sleeved = true) { //* Draw aluminium clad resistor with optional sleaving, positions children at the screw positions
-    sleeving_length = 15;
-    sleeving = HSHRNK32;
-
+module al_clad_resistor_assembly(type, value, sleeved = true, sleeving = HSHRNK32, sleeving_length = 15) { //! Draw aluminium clad resistor with optional sleaving, positions children at the screw positions
    al_clad_resistor(type, value);

    if(sleeved)
@@ -207,52 +204,55 @@ module al_clad_resistor_assembly(type, value, sleeved = true) { //* Draw alumini
        children();
 }

+TO220_hole_y = 2.9; // Distance to hole from top of tab
+
+function TO220_size() = [10.2, 15, 4.4]; //! Size of a TO220
 function TO220_thickness() = 1.5; //! Thickness of the tab of a TO220
+function TO220_lead_pos(i, l) =  //! Position of ith lead end when length = l
+    [i * inch(0.1), -TO220_size().y + TO220_hole_y - l, 1.9];

 module  TO220(description, leads = 3, lead_length = 16) { //! Draw a TO220 package, use `description` to describe what it is
-    width = 10.2;
+    s = TO220_size();
    inset = 1.5;
    hole = 3.3;
-    length = 15;
-    height = 4.4;
-    lead_height = 1.9;
    lead_t = 0.4;
    lead_w = 0.7;
    lead_w2 = 1.4;
    lead_l = 4.2;
    body = 8;
-    hole_y = 2.9;

    vitamin(str("TO220(\"", description, "\"", arg(leads, 3, "leads"), "): ", description));

-    translate([0, -length + hole_y]) {
-        color("silver") {
+    translate([0, -s.y + TO220_hole_y]) {
+        color("silver")
            linear_extrude(TO220_thickness())
                difference() {
-                    translate([-width / 2, inset])
-                        square([width, length - inset]);
+                    translate([-s.x / 2, inset])
+                        square([s.x, s.y - inset]);

-                    translate([0, length - hole_y])
+                    translate([0, s.y - TO220_hole_y])
                        circle(d = hole);

                    for(side = [-1, 1])
-                        translate([side * width / 2, 0])
+                        translate([side * s.x / 2, 0])
                            square([inset * 2, body * 2], center = true);
                }

-            for(i = [-1 : 1])
-                if(i || leads == 3) {
-                    translate([inch(0.1) * i, -lead_length / 2, lead_height])
-                        cube([lead_w, lead_length, lead_t], center = true);
-
-                    translate([inch(0.1) * i, -lead_l / 2, lead_height])
-                        cube([lead_w2, lead_l, lead_t], center = true);
-                }
-        }
        color("dimgrey")
-            translate([-width / 2, 0, eps])
-                cube([width, body, height]);
+            translate([-s.x / 2, 0, eps])
+                cube([s.x, body, s.z]);
    }
+
+    color(silver)
+        for(i = [-1 : 1])
+            if(i || leads == 3) {
+                translate(TO220_lead_pos(i, lead_length / 2))
+                    cube([lead_w, lead_length, lead_t], center = true);
+
+                translate(TO220_lead_pos(i, lead_l / 2))
+                    cube([lead_w2, lead_l, lead_t], center = true);
+            }
+
    translate_z(TO220_thickness())
        children();
 }
--- a/vitamins/faston.scad
+++ b/vitamins/faston.scad
@@ -0,0 +1,219 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Faston receptacles to mate with spade connectors
+//
+include <../utils/core/core.scad>
+include <../utils/sector.scad>
+
+function faston_width(type)         = type[1];  //! Width of matching spade
+function faston_size(type)          = type[2];  //! Size of the receptical part
+function faston_d_top(type)         = type[3];  //! Radius of the clips
+function faston_d_bot(type)         = type[4];  //! Radius of bottom corners
+function faston_t(type)             = type[5];  //! Thickness
+function faston_wire_crimp_l(type)  = type[6];  //! Length of the wire crimp
+function faston_wire_crimp_d(type)  = type[7];  //! Outside diameter of the wire crimp
+function faston_wire_crimp_p(type)  = type[8];  //! Position of the tip of the wire crimp
+function faston_fillet_d(type)      = type[9];  //! Fillets at the transition
+function faston_wall_h(type)        = type[10]; //! Height of transition web wall
+function faston_insul_crimp_l(type) = type[11]; //! Length of the insulation crimp
+function faston_insul_crimp_d(type) = type[12]; //! Outside diameter of the insulation crimp
+function faston_insul_crimp_p(type) = type[13]; //! Position of the tip of the insulation crimp
+function faston_insul_crimp_o(type) = type[14]; //! Offset of insulation crimp
+function faston_length(type) = //! Total length of crimp
+    faston_insul_crimp_p(type).z + faston_insul_crimp_l(type);
+
+function faston_insul_stop(type) = //! Position where insulation stops
+   faston_wire_crimp_p(type).z + faston_wire_crimp_l(type);
+
+module faston(type, closed = false) { //! Draw specified faston
+    vitamin(str("faston(", type[0], "): Faston part no ", type[0], " to fit ", faston_width(type), "mm spade"));
+    s = faston_size(type);
+    r_top = faston_d_top(type) / 2;
+    r_bot = faston_d_bot(type) / 2;
+    t =  faston_t(type);
+    wc_l = faston_wire_crimp_l(type);
+    wc_r = faston_wire_crimp_d(type) / 2;
+    wc_p = faston_wire_crimp_p(type);
+    fillet_r = faston_fillet_d(type) / 2;
+    wall_h = faston_wall_h(type);
+
+    ic_l = faston_insul_crimp_l(type);
+    ic_r = faston_insul_crimp_d(type) / 2;
+    ic_p = faston_insul_crimp_p(type);
+    ic_o = faston_insul_crimp_o(type);
+
+    $fn = 64;
+    // Receptical
+    module reciptical_shape()
+        for(side = [-1, 1]) mirror([side < 0 ? 1 : 0, 0]) {
+            translate([s.x / 2  - r_top, s.y - r_top])
+                difference() {
+                    sector(r_top, 0, 180);
+                    sector(r_top - t, 0, 180);
+                }
+
+            translate([s.x / 2 - r_bot, r_bot])
+                difference() {
+                    sector(r_bot, -90, 0);
+                    sector(r_bot - t, -90, 0);
+                }
+
+            translate([s.x / 2 - t, r_bot])
+                square([t, s.y - r_top - r_bot]);
+
+            square([s.x / 2 - r_bot, t]);
+        }
+
+
+    module crimp_shape(p, r, offset = 0) {
+        hpot = norm([p.x, p.y] - [0, r + offset]);
+        opp = sqrt(sqr(hpot) - sqr(r));
+        angle = atan((p.y - (r + offset)) / p.x) - acos(r / hpot);
+        r_crimp = r / 2 - eps;
+        lift = -0.1;
+        z = (opp - r * 2 * PI / -angle / 360 - PI * r_crimp) / 2 + lift / 2;
+
+        for(side = [-1, 1]) mirror([side < 0 ? 1 : 0, 0])
+            translate([0, r + offset]) {
+                difference() {
+                    sector(r, 270, 360 + (closed ? 0 : angle));
+
+                    circle(r - t);
+                }
+
+                if(!closed)
+                    rotate(angle)
+                        translate([r - t, -eps])
+                            square([t, opp]);
+                else {
+                    translate([r - r_crimp, z])
+                        difference() {
+                            sector(r_crimp, 0, 180);
+
+                            circle(r_crimp - t);
+                        }
+                    translate([r - t, 0])
+                        square([t, z]);
+
+                    translate([r - 2 * r_crimp, lift])
+                        square([t, z - lift]);
+
+                }
+           }
+    }
+
+    // Wire crimp
+    module wire_crimp_shape() crimp_shape(wc_p, wc_r);
+
+    // Insulation crimp
+    module insul_crimp_shape() crimp_shape(ic_p, ic_r, ic_o);
+
+    module crop(z = 0)
+        intersection() {
+            children();
+
+            square([s.x, 2 * (wall_h + fillet_r + z)], center = true);
+        }
+
+    color(silver) translate([0, -t]) {
+        // Transition from reciptical to wire crimp
+        render() difference() {
+           hull() {
+                translate_z(s.z)
+                    linear_extrude(eps)
+                        crop()
+                            reciptical_shape();
+
+                translate_z(wc_p.z - eps)
+                    linear_extrude(eps)
+                        crop()
+                            wire_crimp_shape();
+            }
+            translate([0, s.y, (s.z + wc_p.z) / 2])
+                rotate([0, 90, 0])
+                    rounded_rectangle([wc_p.z - s.z, 2 * (s.y - wall_h), s.x + 1], fillet_r, center = true);
+
+            hull() {
+                translate_z(s.z - eps)
+                    linear_extrude(eps)
+                        offset(-t)
+                            crop(t)
+                                hull()
+                                    reciptical_shape();
+
+                translate_z(wc_p.z + eps / 8)
+                    linear_extrude(eps / 8)
+                        offset(-t)
+                            crop(t)
+                                hull()
+                                    wire_crimp_shape();
+            }
+        }
+        // Transition from wire crimp to insulation crimp
+        render() difference() {
+           hull() {
+                translate_z(wc_p.z + wc_l)
+                    linear_extrude(eps)
+                         wire_crimp_shape();
+
+                translate_z(ic_p.z - eps)
+                    linear_extrude(eps)
+                         insul_crimp_shape();
+            }
+
+            gap = ic_p.z - wc_p.z - wc_l;
+            d = gap * 2 / 3;
+            translate([0, wall_h + fillet_r - gap / 2, ic_p.z - d / 2])
+                hull() {
+                    rotate([0, 90, 0])
+                        cylinder(d = d, h = 10, center = true);
+
+                    translate([-5, d / 2, d / 2 - gap])
+                        cube([10, 10, gap]);
+                }
+
+            hull() {
+                translate_z(wc_p.z + wc_l - eps)
+                    linear_extrude(eps)
+                        offset(-t)
+                            hull()
+                                wire_crimp_shape();
+
+                translate_z(ic_p.z + eps / 8)
+                    linear_extrude(eps / 8)
+                        offset(-t)
+                             hull()
+                                insul_crimp_shape();
+            }
+        }
+
+        linear_extrude(s.z)
+            reciptical_shape();
+
+        translate_z(wc_p.z)
+            linear_extrude(wc_l)
+                wire_crimp_shape();
+
+        translate_z(ic_p.z)
+            linear_extrude(ic_l)
+                insul_crimp_shape();
+    }
+}
--- a/vitamins/fastons.scad
+++ b/vitamins/fastons.scad
@@ -0,0 +1,28 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Faston receptacles to mate with spade connectors
+//
+
+5_160430_7 = ["5_160430_7", 4.75, [5.6, 2.56, 6.3], 2.25, 1.13, 0.32, 3.2, 1.64, [1.64, 3.09, 9], 0.5, 0.96, 1.7, 3.53, [2.08, 4.47, 13.3], -0.4];
+
+fastons = [5_160430_7];
+
+use <faston.scad>
--- a/vitamins/leadnut.scad
+++ b/vitamins/leadnut.scad
@@ -23,6 +23,7 @@
 include <../utils/core/core.scad>
 use <../utils/tube.scad>
 use <../utils/thread.scad>
+use <../vitamins/screw.scad>

 function leadnut_bore(type)          = type[2];     //! Thread size
 function leadnut_od(type)            = type[3];     //! Outer diameter of the shank
@@ -41,6 +42,17 @@ function leadnut_colour(type)        = type[15];    //! The colour

 function leadnut_shank(type)         = leadnut_height(type) - leadnut_flange_t(type) - leadnut_flange_offset(type); //! The length of the shank below the flange

+function leadnuthousing_length(type)            = type[2];  //! Length of housing
+function leadnuthousing_width(type)             = type[3];  //! Width of housing
+function leadnuthousing_height(type)            = type[4];  //! Height of housing
+function leadnuthousing_hole_pos(type)          = type[5];  //! Offset from center for nut hole
+function leadnuthousing_screw_dist_l(type)      = type[6];  //! Distance between mounting holes length
+function leadnuthousing_screw_dist_w(type)      = type[7];  //! Distance between mounting holes width
+function leadnuthousing_mount_screw(type)       = type[8];  //! Mounting screw
+function leadnuthousing_mount_screw_len(type)   = type[9];  //! Mounting screw length
+function leadnuthousing_nut(type)               = type[10]; //! Nut type this is suitable for
+function leadnuthousing_nut_screw_length(type)  = type[11]; //! Length of mounting screw for nut
+
 module leadnut_screw_positions(type) { //! Position children at the screw holes
    holes = leadnut_holes(type);
    flat = leadnut_flat(type);
@@ -87,3 +99,58 @@ module leadnut(type) { //! Draw specified leadnut
                    }
        }
 }
+
+module leadnuthousing_screw_positions(type) { //! Get screw positions to mount the leadnut housing
+    for(p = [[-1,-1], [1,-1], [1,1], [-1,1]])
+        translate([p.x * leadnuthousing_screw_dist_l(type)/2, p.y * leadnuthousing_screw_dist_w(type)/2, 0])
+            children();
+}
+module leadnuthousing_nut_position(type) { //! The position of the nut may be off-center, use this to get the position
+    translate([leadnuthousing_hole_pos(type),0, leadnuthousing_height(type)/2])
+        children();
+}
+
+module leadnuthousing_nut_screw_positions(type) { //! get screw positions to mount the nut to the nut housing
+    translate([leadnuthousing_hole_pos(type),0, 0])
+        leadnut_screw_positions(leadnuthousing_nut(type))
+            children();
+}
+
+module leadnuthousing(type) { //! Nut housing, to connect a lead nut to another object
+    vitamin(str("nuthousing(", type[0], "): ", type[1]));
+
+    leadnut = leadnuthousing_nut(type);
+    screw = leadnut_screw(leadnut);
+    d = screw_radius(screw) * 2;
+    p = metric_coarse_pitch(d);
+    sl = leadnuthousing_nut_screw_length(type);
+    ms = leadnuthousing_mount_screw(type);
+    msl = leadnuthousing_mount_screw_len(type);
+    md = screw_radius (ms) * 2;
+    mp = metric_coarse_pitch(md);
+
+    color("silver")
+        difference() {
+            cube([leadnuthousing_length(type), leadnuthousing_width(type), leadnuthousing_height(type)], center = true);
+            translate([leadnuthousing_hole_pos(type),0,0]) {
+                cylinder(d=leadnut_od(leadnut), h=leadnuthousing_length(type)+2, center=true);
+                translate_z(leadnut_flange_offset(leadnut))
+                    leadnut_screw_positions(leadnut)
+                cylinder(r=screw_radius(leadnut_screw(leadnut)), h=sl+1);
+            }
+
+            rotate([0,90,0])
+                leadnuthousing_screw_positions(type)
+                    cylinder(r=screw_radius(ms), h=msl+1);
+
+        }
+    if(show_threads) {
+        translate([leadnuthousing_hole_pos(type),0,leadnuthousing_height(type)/2 - sl/2 - leadnut_flange_t(leadnut)])
+            leadnut_screw_positions(leadnut)
+                female_metric_thread(d, p, sl, center = true, colour = silver);
+        rotate([0,90,0])
+            translate_z(msl/2)
+                leadnuthousing_screw_positions(type)
+                    female_metric_thread(md, mp, msl, center = true, colour = silver);
+    }
+}
--- a/vitamins/leadnuts.scad
+++ b/vitamins/leadnuts.scad
@@ -29,5 +29,9 @@ LSN8x8  = ["LSN8x8",  "Leadscrew nut 8 x 8 RobotDigg", 8, 12.75,19, 25.4, 4.1, 0
 SFU1610 = ["SFU1610", "Leadscrew nut for SFU1610",    16, 28, 42.5, 48,    10, 0,   6, 6,   38/2,    M6_cap_screw, 5, 10, 40, "#DFDAC5"];

 leadnuts = [LSN8x2, LSN8x8, SFU1610];
+//                                                  L   W   H   Hole    Mounting screws (top)             Nut      Nut mount screw
+//                                                              Pos     Dist L Dist W Type             L            Length
+LNHT8x2 = [ "LNHT8x2", "Lead Screw Nut Housing T8", 30, 34, 30, -1,     20,    24,    M4_cs_cap_screw, 15, LSN8x2,  15 ];
+leadnuthousings = [LNHT8x2];

 use <leadnut.scad>
--- a/vitamins/leds.scad
+++ b/vitamins/leds.scad
@@ -25,10 +25,11 @@
 //                          d    t     h     h
 //                                     t          t
 //
-LED3mm  = ["LED3mm",   3,  3.1, 1.0,  4.5, 2.54, 0.4];
-LED5mm  = ["LED5mm",   5,  5.6, 0.9,  8.5, 2.54, 0.4];
-LED10mm = ["LED10mm", 10, 11.0, 2.0, 13.5, 2.54, 0.4];
+LED3mm  = ["LED3mm",   3,  3.15, 1.15, 4.6, 2.54, 0.4];
+LED5mm  = ["LED5mm",   5,  5.9,  1.1,  9.0, 2.54, 0.4];
+LED8mm  = ["LED8mm",   8,  9.2,  1.95,11.0, 2.54, 0.4];
+LED10mm = ["LED10mm", 10, 11.0,  2.0, 13.5, 2.54, 0.4];

-LEDs = [LED3mm, LED5mm, LED10mm];
+LEDs = [LED3mm, LED5mm, LED8mm, LED10mm];

 use <led.scad>
--- a/vitamins/nuts.scad
+++ b/vitamins/nuts.scad
@@ -28,14 +28,14 @@ M5_nut_depth = 4;
 M6_nut_depth = 5;
 M8_nut_depth = 6.5;

-//                                      s    r    t    n     w              t                  t
-//                                      c    a    h    y     a              r                  h
-//                                      r    d    i    l     s              a                  r
-//                                      e    i    c    o     h              p                  e
-//                                      w    u    k    c     e                                 d
-//                                           s    n          r              d
-//                                                e    t                    e                  p
-//                                                s    h                    p                  i
+//                                      s    d    t    n     w              t                  t
+//                                      c    i    h    y     a              r                  h
+//                                      r    a    i    l     s              a                  r
+//                                      e    m    c    o     h              p                  e
+//                                      w    e    k    c     e                                 d
+//                                           t    n          r              d
+//                                           e    e    t                    e                  p
+//                                           r    s    h                    p                  i
 //                                                s    k                    t                  t
 //                                                                          h                  c
 //                                                                                             h
--- a/vitamins/opengrab.scad
+++ b/vitamins/opengrab.scad
@@ -18,7 +18,7 @@
 //

 //
-//! Nicodrone OpenGrab V3 electro-permanent magnet, see <https://nicadrone.com/products/epm-v3>.
+//! Nicodrone OpenGrab V3 electro-permanent magnet, see <https://kb.zubax.com/display/MAINKB/OpenGrab+EPM+v3>.
 //!
 //! A permanent magnet that can be magnetized and de-magnetized electronically.
 //
@@ -37,14 +37,13 @@ pole_w = 2;
 pole_l = 36;
 poles = 15;

-pcb = ["", "",        width, width, 0.8, 0, 3.5, 0, "darkgreen", false, [],
-    [     [ 3.45,   19,   0, "button_4p5mm"],
-          [ 2.75,   24.5, 0, "smd_led", LED0805, "green"],
-          [ 2.75,   28.0, 0, "smd_led", LED0805, "red"],
-          [ 28.5,   13,   0, "2p54header", 3, 1, false, undef, true],
+pcb = ["", "", width, width, 0.8, 0, 3.5, 0, "darkgreen", false, [],
+    [     [ 3.475,  19.05,    0, "button_4p5mm"],
+          [ 2.2,    24.125,   0, "smd_led", LED0805, "green"],
+          [ 2.375,  27.9,     0, "smd_led", LED0805, "red"],
+          [ 28.4,   13.345,   0, "2p54header", 3, 1, false, undef, true],
     ]];

-
 module opengrab_hole_positions()    //! Position children at the screw positions
    let($d = 3.2)
        for($x = [-pitch, pitch], $y = [-pitch, pitch])
@@ -96,6 +95,17 @@ module opengrab() { //! Draw OpenGrab module
            if(show_threads)
                female_metric_thread(3, metric_coarse_pitch(3), depth - 1, center = false, colour = brass);
        }
+
+    module molex()
+        translate_z(opengrab_pcb_z() + pcb_thickness(pcb))
+            color(grey(90))
+                import("stl/Molex_5023860470.stl");
+
+    translate([-8.4, -14.2])
+        molex();
+
+    translate([0.125, -14.2])
+        molex();
 }

 module opengrab_target() { //! Draw OpenGrab target
--- a/vitamins/pcb.scad
+++ b/vitamins/pcb.scad
@@ -37,6 +37,7 @@ use <d_connector.scad>
 use <led.scad>
 use <dip.scad>
 use <axial.scad>
+use <radial.scad>
 use <smd.scad>
 use <terminal.scad>
 include <potentiometers.scad>
@@ -115,6 +116,14 @@ module usb_A_tongue() {
                }
 }

+module usb_vAx1(cutout = false) { //! Draw a vertical USB type A single socket
+    h = 5.8;
+    w = 13.8;
+    translate([0, h / 2, w / 2])
+        rotate([90, 0, 0])
+            usb_A(h = h, v_flange_l = 0, bar = 0, cutout = cutout, l = 14, h_flange_l = 0, flange_t = 0.3, w = w);
+}
+
 module usb_Ax1(cutout = false) { //! Draw USB type A single socket
    usb_A(h = 6.5, v_flange_l = 4.5, bar = 0, cutout = cutout);
 }
@@ -123,12 +132,8 @@ module usb_Ax2(cutout = false) { //! Draw USB type A dual socket
    usb_A(h = 15.6, v_flange_l = 12.15, bar = 3.4, cutout = cutout);
 }

-module usb_A(h, v_flange_l, bar, cutout) {
-    l = 17;
-    w = 13.25;
-    flange_t = 0.4;
+module usb_A(h, v_flange_l, bar, cutout, l=17, h_flange_l = 11, flange_t = 0.4, w = 13.25) {
    h_flange_h = 0.8;
-    h_flange_l = 11;
    v_flange_h = 1;
    socket_h = (h - 2 * flange_t - bar) / 2;

@@ -154,9 +159,11 @@ module usb_A(h, v_flange_l, bar, cutout) {
                translate_z(l / 2 - flange_t)
                    linear_extrude(flange_t) difference() {
                        union() {
-                            square([h + 2 * h_flange_h, h_flange_l], center = true);
+                            if(h_flange_l)
+                                square([h + 2 * h_flange_h, h_flange_l], center = true);

-                            square([v_flange_l, w + 2 * v_flange_h], center = true);
+                            if(v_flange_l)
+                                square([v_flange_l, w + 2 * v_flange_h], center = true);
                        }
                        square([h - eps, w - eps], center = true);
                    }
@@ -164,7 +171,8 @@ module usb_A(h, v_flange_l, bar, cutout) {

                for(z = bar ?  [-1, 1] : [0])
                    translate_z(z * (bar / 2 + socket_h / 2))
-                        usb_A_tongue();
+                        translate([l - 17, 0])
+                            usb_A_tongue();
            }
 }

@@ -1063,7 +1071,7 @@ module trimpot10(vertical, cutout = false) { //! Draw a ten turn trimpot
             }
 }

-module block(size, colour, makes_cutout, cutouts) //! Draw a coloured cube to represent a random PCB component
+module block(size, colour, makes_cutout, cutouts, r = 0, rtop = 0) //! Draw a coloured cube to represent a random PCB component
    if(cutouts) {
        if(makes_cutout)
             translate([-50, 0, size.z / 2 - panel_clearance])
@@ -1071,8 +1079,10 @@ module block(size, colour, makes_cutout, cutouts) //! Draw a coloured cube to re
    }
    else
        color(colour)
-            translate_z(size.z / 2)
-                cube(size, center = true);
+            if(rtop)
+                let($fn = 32) rounded_top_rectangle(size, r, rtop);
+            else
+                rounded_rectangle(size, r);

 module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb component from description
    function show(comp, part) = (comp[3] == part || comp[3] == str("-",part)) && (!cutouts || angle == undef || angle == comp.z);
@@ -1088,6 +1098,8 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
        if(show(comp, "chip"))          chip(comp[4], comp[5], comp[6], param(7, grey(30)), cutouts);
        if(show(comp, "rj45"))          rj45(cutouts);
        if(show(comp, "usb_A"))         usb_Ax1(cutouts);
+        if(show(comp, "usb_vAx1"))      usb_vAx1(cutouts);
+        if(show(comp, "usb_Ax1"))       usb_Ax1(cutouts);
        if(show(comp, "usb_Ax2"))       usb_Ax2(cutouts);
        if(show(comp, "usb_uA"))        usb_uA(cutouts);
        if(show(comp, "usb_miniA"))     usb_miniA(cutouts);
@@ -1106,7 +1118,7 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
        if(show(comp, "molex_usb_Ax1")) molex_usb_Ax1(cutouts);
        if(show(comp, "smd_led"))       smd_led(comp[4], comp[5], cutouts);
        if(show(comp, "7seg"))          let(z = param(6, 0)) translate_z(z) 7_segment_digits(comp[4], comp[5], pin_length = z + 3, cutout = cutouts);
-        if(show(comp, "block"))         block(size = [comp[4], comp[5], comp[6]], colour = comp[7], makes_cutout = param(8));
+        if(show(comp, "block"))         block(size = [comp[4], comp[5], comp[6]], colour = comp[7], makes_cutout = param(8), r = param(9, 0), rtop = param(10, 0));
        if(!cutouts) {
            // Components that don't have a cutout parameter go in this section
            if(show(comp, "button_6mm"))    square_button(button_6mm);
@@ -1124,7 +1136,8 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
            if(show(comp, "led"))           translate_z(eps) led(comp[4], comp[5], 2.6);
            if(show(comp, "pdip"))          pdip(comp[4], comp[5], param(6, false), param(7, inch(0.3)));
            if(show(comp, "ax_res"))        ax_res(comp[4], comp[5], param(6, 5), param(7, 0));
-            if(show(comp, "link"))          wire_link(l = comp[4], h = param(5, 1), d = param(6, 0.8), tail = param(7, 3));
+            if(show(comp, "rd_xtal"))       rd_xtal(type = comp[4], value = param(5, undef), z = param(6, 0), pitch = param(7, undef)); // type, value, z, forced pitch
+            if(show(comp, "link"))          wire_link(l = comp[4], h = param(5, 1), d = param(6, 0.8), tail = param(7, 3), sleeve = param(8, false));
            if(show(comp, "D_plug"))        translate_z(d_pcb_offset(comp[4])) d_plug(comp[4], pcb = true);
            if(show(comp, "molex_hdr"))     molex_254(comp[4], param(5, 0), param(6, undef));
            if(show(comp, "jst_xh"))        jst_xh_header(jst_xh_header, comp[4], param(5, false), param(6, "white"), param(7, undef));
@@ -1133,8 +1146,13 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
            if(show(comp, "buzzer"))        buzzer(param(4, 9), param(5, 12), param(6, grey(20)));
            if(show(comp, "smd_res"))       smd_resistor(comp[4], comp[5]);
            if(show(comp, "smd_cap"))       smd_capacitor(comp[4], comp[5], param(6, undef));
+            if(show(comp, "smd_tant"))      smd_tant(comp[4], param(5, undef));
            if(show(comp, "smd_sot"))       smd_sot(comp[4], comp[5]);
            if(show(comp, "smd_soic"))      smd_soic(comp[4], comp[5]);
+            if(show(comp, "smd_diode"))     smd_diode(comp[4], comp[5]);
+            if(show(comp, "smd_inductor"))  smd_inductor(comp[4], comp[5]);
+            if(show(comp, "smd_pot"))       smd_pot(comp[4], comp[5]);
+            if(show(comp, "smd_coax"))      smd_coax(comp[4]);
            if(show(comp, "vero_pin"))      vero_pin(param(4, false));
            if(show(comp, "terminal"))      terminal_block(comp[5], comp[4]);
            if(show(comp, "text"))          color("white") linear_extrude(eps) resize([comp[4], comp[5]]) text(comp[6], font = param(7, "Liberation Mono"), valign = "center", halign = "center");
--- a/vitamins/pcbs.scad
+++ b/vitamins/pcbs.scad
@@ -20,6 +20,7 @@ include <microswitches.scad>
 include <d_connectors.scad>
 include <leds.scad>
 include <axials.scad>
+include <radials.scad>
 include <smds.scad>
 include <green_terminals.scad>
 include <7_segments.scad>
@@ -537,6 +538,37 @@ Melzi = ["Melzi", "Melzi electronics", 203.2, 49.53, 1.6, 3.81, 3.1,  6, "green"
                                                                    [],
                                                                    [": USB A to Mini B lead", ": Micro SD card"]];

+OPZ2 =  ["OPZ2", "Orange Pi Zero 2",     60,    53,    1.4, 1.75,    3, 5, "blue", false, [[2.5, 2.5], [-2.5, 2.5], [-2.5, -2.5], [2.5, -2.5]],
+    [[-2.54, 53/2, 90, "2p54header", 13, 2],
+     [-10, -10-2.54*2, 0, "2p54header", 3, 1],
+     [2.54/2, 53/2, 90, "2p54header", 13, 1],
+     [6+16/2, -10.5+1, 90, "rj45"],
+     [24+9/2, -3.6+1, 90, "usb_C"],
+     [37+6.5/2,  -8.5/2+1, 90, "micro_hdmi"],
+     [-7-5.8/2, -7+1,    90, "usb_vAx1"],
+     [-17,   18,  0, "chip",       13, 7.5, 1],
+     [-17,   28,  0, "chip",       13, 7.5, 1],
+     [26,   23,  0, "chip",       12.2, 14, 1],
+     [8.1+10.3/2,   3.7+10.3/2,  0, "chip",       10.3, 10.3, 1.8, "silver"],
+     [10.7+14.6/2,  14.7/2,  90, "-uSD", [14.6, 14.7, 2]],
+    ],
+    [": Micro SD card"],
+    [60-2.54*1.5, 53/2 - 6*2.54, 2, 13]];
+
+RPI3A =  ["RPI3A", "Raspberry Pi 3 A+",     65,    56,    1.4, 3,    2.75, 6, "green", false, [[3.5, 3.5], [61.5, 3.5], [61.5, -3.5], [3.5, -3.5]],
+    [[32.5, -3.5,   0, "2p54header", 20, 2],
+     [27,   -24.6,  0, "chip",       14, 14, 1],
+     [53.5,   6,  -90, "jack"],
+     [32,   4.4,  -90, "hdmi"],
+     [-6.5,  31.45,    0, "usb_Ax1"],
+     [10.6,   2,  -90, "usb_uA"],
+     [3.6,   28,   90, "flex"],
+     [45,    11.5,-90, "flex"],
+     [7.75,  28,  180, "-uSD", [12, 11.5, 1.28]],
+    ],
+    [": Micro SD card"],
+    [32.5 - 9.5 * 2.54, 52.5 - 1.27, 20, 2]];
+
 RPI3 =  ["RPI3", "Raspberry Pi 3",     85,    56,    1.4, 3,    2.75, 6, "green", false, [[3.5, 3.5], [61.5, 3.5], [61.5, -3.5], [3.5, -3.5]],
    [[32.5, -3.5,   0, "2p54header", 20, 2],
     [27,   -24.6,  0, "chip",       14, 14, 1],
@@ -627,6 +659,14 @@ ArduinoUno3 = ["ArduinoUno3", "Arduino Uno R3", 68.58, 53.34, 1.6, 0, 3.3, 0, "#
     [4.7625,  7.62, 180,"barrel_jack"],
     [1.5875, 37.78, 180,"usb_B"],
     [46.99,  17,    270,"pdip", 28, "ATMEGA328", true],
+     [18.7,   25.8,  0,  "rd_xtal", HC49_4H],
+     [7.5,    17.2,  90, "smd_sot", SOT223],
+     [7.9,    26.5,  90, "smd_sot", SOT23],
+     [21.3,    2.7,  0,  "smd_diode", DO214AC],
+     [27.8,   34.6,  0,  "smd_led", LED0805, "red"],
+     [27.8,   37,    0,  "smd_led", LED0805, "red"],
+     [27.8,   42.3,  0,  "smd_led", LED0805, "red"],
+     [58.8,   37.1,  0,  "smd_led", LED0805, "red"],
    ],
    [],[],
    inch([
@@ -744,9 +784,29 @@ WD2002SJ = ["WD2002SJ", "WD2002SJ Buck Boost DC-DC converter", 78, 47, 1.6, 0, 3
    ],
    []];

-MP1584EN = ["MP1584EN", "MP1584EN 3A buck converter", 22, 17, 1.2, 0, 1, [2, 2], "green", false,
-    [[1.75, 1.75], [1.75, -1.75], [-1.75, 1.75], [-1.75, -1.75], [-1.75, -4.4], [-1.75, 4.48], [1.75, -4.4], [1.75, 4.4]],
-    []
+MP1584EN = ["MP1584EN", "MP1584EN 3A buck converter", 22, 17, 1.25, 0, 1, [2, 2], "green", false,
+    [[1.75, 1.75], [-1.75, 1.75], [-1.75, 4.4], [1.75, 4.4]],
+    [ [1.75, 8.5, 90, "smd_cap", CAP1206, 1],
+      [-1.75, 8.5, 90, "smd_cap", CAP1206, 1],
+      [7.5, 8.5, 0, "smd_soic", SOIC8, "WP1584EN"],
+      [3.9, 8.3, 90, "smd_res", RES0603, "104"],
+      [3.9, 11.2, 90,"smd_cap", CAP0603, 0.5],
+      [3.9, 5.4, 90, "smd_res", RES0603, "822"],
+      [6.2, 3.5,  0, "smd_res", RES0603, "104"],
+      [6.2, 2.1,  0, "smd_cap", CAP0603, 0.5],
+      [9.2, 3.5,  0, "smd_res", RES0603, "104"],
+      [9.2, 2.1,  0, "smd_res", RES0603, "104"],
+      [6.3, 14.4, 0, "smd_diode",DO214AC, "SS34"],
+      [12.1, 4.9, 0, "smd_cap", CAP0603, 0.5],
+      [15.8, 4.9, 0, "smd_cap", CAP0603, 0.5],
+      [14.5, 10, 90, "smd_inductor", IND2525, "4R7"],
+      [14.7, 1.8,-90,"smd_pot", TC33X1, "10K"],
+      [13.9, -1.4, 0,"text", 5, 1.5, "D-SUN", "Liberation Mono:style=Bold"],
+      [17.7, -1.2, 0,"text", 1.5,1.5,"\u2296", "MS Gothic:style=Bold"],
+      [17.9, 1.75, 0,"text", 1.5,1.5,"\u2295", "MS Gothic:style=Bold"],
+   ],
+   [],
+   [1.75,17 -4.4, 2, 2, silver, 18.5, 2.65], // Abuse the grid facility to get the round pads
 ];

 PERF80x20 = ["PERF80x20", "Perfboard 80 x 20mm", 80, 20, 1.6, 0, 2.3, 0, "green", true, [[2,2],[-2,2],[2,-2],[-2,-2]], [], [], [5.71, 3.65]];
@@ -812,7 +872,7 @@ XIAO = [
    [for(x = [0:6], y = [-1,1]) [x * 2.54 + 2.71, y * 3 * 2.54 + 9], // Inboard hole positions
     for(x = [0:6], y = [-1,1]) [x * 2.54 + 2.71, y * 9 + 9]],       // Hole positions on the edge, pad overlaps the inboard holes
    [ // components
-        [7.6, 9, 0, "block", 12.3, 12, 2.41, silver], // can
+        [7.6, 9, 0, "block", 12.3, 12, 2.41, silver, false, 0.3, 0.3], // can
        [21 + 1.76 - 7.35 / 2, 9, 0, "usb_C"],
    ],
    [] // accessories
@@ -861,7 +921,7 @@ ESP32_DOIT_V1 = let(l = 51.45, w = 28.33, pitch = inch(1), pins = 15, poffset =
      [l / 2 + poffset, w / 2 - pitch / 2, 0, "-2p54joiner", pins, 1],
      [l / 2 + poffset, w / 2 + pitch / 2, 0, "-2p54joiner", pins, 1],
      [1.75, w / 2, 180, "usb_uA" ],
-      [35,  w / 2, 0, "block", 17.7, 16, 3, silver], // can
+      [35,  w / 2, 0, "block", 17.7, 16, 3, silver, false, 0.3, 0.3], // can
      for(y=[-1,1]) [3.5,  y * 6.5, 0, "chip", 4,  3, 1.6, silver],   // Mock button surround
      for(y=[-1,1]) [3.5,  y * 6.5, 0, "chip", 1.8,0, 2.0, grey(20)], // Mock buttons
      for(y=[-1,1]) [21.6, y * 9,   0, "smd_led", LED0603, y < 0 ? "red" : "blue"],
@@ -920,7 +980,9 @@ L9110S = ["L9110S", "L9110S 2-Channel motor driver module", 29.2, 23, 1.6, 0, 3,

 tiny_pcbs = [XIAO, MP1584EN, TP4056, ESP_01, LIPO_fuel_gauge];

-pcbs = [RAMPSEndstop, MT3608, KY_040, L9110S, ZC_A0591, ArduinoNano, RPI_Pico, ESP32_DOIT_V1, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, RPI3, RPI4, BTT_RELAY_V1_2, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];
+big_pcbs = [BTT_RELAY_V1_2, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];
+
+pcbs = [RAMPSEndstop, MT3608, KY_040, L9110S, ZC_A0591, ArduinoNano, RPI_Pico, ESP32_DOIT_V1, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, OPZ2, RPI3A, RPI3, RPI4];

 pcbs_not_shown = [Melzi, Duex2, PSU12V1A, Keyes5p1, PI_IO, ExtruderPCB];

--- a/vitamins/photo_interrupter.scad
+++ b/vitamins/photo_interrupter.scad
@@ -0,0 +1,103 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Photo interrupter modules popular in robot kits and from China.
+//
+include <../utils/core/core.scad>
+include <../utils/rounded_polygon.scad>
+
+function pi_base_width(type)    = type[1]; //! Width of the base
+function pi_base_length(type)   = type[2]; //! Length of the base
+function pi_base_height(type)   = type[3]; //! Height of the base
+function pi_gap_height(type)    = type[4]; //! Height of the gap where the light can be interrupted
+function pi_gap_width(type)     = type[6]; //! Width of the gap
+function pi_stem_width(type)    = type[5]; //! Width of the stems
+function pi_hole_diameter(type) = type[7]; //! Diameter of the mounting holes
+function pi_color(type)         = type[8]; //! Color of photo interrupter
+function pi_pcb(type)           = type[9]; //! Parameter for the support PCB, created with pi_pcb
+
+module pi_hole_locations(type) { //! Locations of photo interrupter mounting holes
+    translate([0, -(pi_base_length(type) - pi_base_width(type)) / 2, 0])
+        children();
+    translate([0, (pi_base_length(type) - pi_base_width(type)) / 2, 0])
+        children();
+}
+
+module pi_pcb_hole_locations(pcb) { //! Locations of the PCB holes
+    for (xy = pcb[7]) {
+        translate([xy[0], xy[1], 0])
+            children();
+    }
+}
+
+module pi_pcb(type) { //! Draw the support PCB
+    pcb = pi_pcb(type);
+    color(pcb[6]) {
+        translate([0, 0, -pcb[2]]) {
+            linear_extrude(pcb[2]) {
+                difference() {
+                    rounded_polygon([[0, -(pi_base_length(type) - pi_base_width(type)) / 2, -pi_base_width(type) / 2],
+                                     [pi_base_width(type) / 2, -pcb[1]/2, eps],
+                                     [pcb[0]+1, -pcb[1]/2, eps],
+                                     [pcb[0]+1, pcb[1]/2, eps],
+                                     [pi_base_width(type) / 2, pcb[1]/2, eps],
+                                     [0, (pi_base_length(type) - pi_base_width(type)) / 2, -pi_base_width(type) / 2]
+                                     ]);
+                    pi_pcb_hole_locations(pcb)
+                        circle(d = pcb[8]);
+                    pi_hole_locations(type)
+                        circle(d=pi_hole_diameter(type));
+                }
+            }
+        }
+    }
+}
+
+module photo_interrupter(type) { //! Draw the photo interrupter, with PCB
+    vitamin(str("photo_interrupter(", type[0], "): ", type[0], " Photo interrupter"));
+    color(pi_color(type)) {
+        linear_extrude(pi_base_height(type)) {
+            difference() {
+                hull() {
+                    pi_hole_locations(type)
+                        circle(d = pi_base_width(type));
+                }
+                pi_hole_locations(type)
+                    circle(d = pi_hole_diameter(type));
+            }
+        }
+        translate([-pi_base_width(type)/2, -(pi_gap_width(type)/2 + pi_stem_width(type)), 0])
+            cube([pi_base_width(type), pi_stem_width(type), pi_gap_height(type) + pi_base_height(type)]);
+        translate([-pi_base_width(type)/2, pi_gap_width(type)/2, 0])
+            cube([pi_base_width(type), pi_stem_width(type), pi_gap_height(type) + pi_base_height(type)]);
+    }
+    pi_pcb(type);
+}
+
+module pi_cutout(type) { //! Shape to subtract for fitting a photo interrupter
+    hull() {
+        pi_hole_locations(type)
+            cylinder(h = pi_base_height(type), d = pi_base_width(type));
+    }
+    translate([-pi_base_width(type)/2, -(pi_gap_width(type)/2 + pi_stem_width(type)), 0])
+        cube([pi_base_width(type), pi_stem_width(type), pi_gap_height(type) + pi_base_height(type)]);
+    translate([-pi_base_width(type)/2, pi_gap_width(type)/2, 0])
+        cube([pi_base_width(type), pi_stem_width(type), pi_gap_height(type) + pi_base_height(type)]);
+};
--- a/vitamins/photo_interrupters.scad
+++ b/vitamins/photo_interrupters.scad
@@ -0,0 +1,23 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+PH1 = ["PH1", 6.4, 25.9 , 3.5, 8.6, 4.1, 5.9, 3, grey(20), [22, 20, 1.6, true, 11-3.2, 0, "blue",[[8.3, -7.5], [8.3, 7.5]], 3]];
+
+photo_interrupters = [PH1];
+
+use <photo_interrupter.scad>
--- a/vitamins/pin_header.scad
+++ b/vitamins/pin_header.scad
@@ -20,7 +20,7 @@
 include <../utils/core/core.scad>
 use <../utils/dogbones.scad>

-panel_clearance = 0.2;
+panel_clearance = 0.5;
 housing_height = 14.12;  // measured height of a Dupont connector.
 housing_colour = grey(25);

@@ -242,9 +242,11 @@ module pin_socket(type, cols = 1, rows = 1, right_angle = false, height = 0, smt
    }
 }

-module jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_colour = false, smt = false) { //! Draw JST XH connector
-    colour = colour ? colour : hdr_base_colour(type);
-    pin_colour = pin_colour ? pin_colour : hdr_pin_colour(type);
+module jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_colour = false, smt = false) { //! Draw JST XH, PH or ZH connector
+    series = chr([ord(type[0][4]) - 32, ord(type[0][5]) - 32]);
+    vitamin(str("jst_xh_header(", type[0], ", ", pin_count, arg(right_angle, false, "right_angle"), arg(colour, false, "colour"), arg(smt, false, "smt"), "): JST ", series, " connector ",
+                pin_count, " way", right_angle ? " right_angle" :""));
+
    pitch = hdr_pitch(type);
    size = hdr_box_size(type) + [(pin_count - 1) * pitch, 0, 0];
    pinOffsetX = hdr_box_size(type).x / 2;                          // Offset from last pin to box edge
@@ -255,6 +257,7 @@ module jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_c
    ra_z = ra_h - size.y / 2;
    ra_extra = ra_h - size.y;                                   // thicker base for right angle version
    pinWidth = hdr_pin_width(type);
+    pin_colour = pin_colour ? pin_colour : hdr_pin_colour(type);

    module jst_xh_socket(type, pin_count, ra = false) {
        module wall() {
@@ -308,7 +311,7 @@ module jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_c
            }
    } // end module

-    color(colour)
+    color(colour ? colour : hdr_base_colour(type))
        if(right_angle)
            translate([0, -ra_box_offset, ra_z])
                rotate([-90, 0, 180])
--- a/vitamins/pin_headers.scad
+++ b/vitamins/pin_headers.scad
@@ -27,9 +27,9 @@
 2p54header  = ["2p54header",   2.54, 11.6, 3.2, 0.66, gold,   grey(20), 8.5, [0,   0,    8.7], 2.4, 0,     0,    0  ];
 2p54joiner =  ["2p54joiner",   2.54, 6.86, 2.5, 0.66, gold,   grey(20), 8.5, [0,   0,    8.7], 2.4, 0,     0,    0  ]; // Cropped pins for joining PCBs

-jst_xh_header = ["jst_xh_header",2.5,  10, 3.4, 0.64, gold,   grey(90), 0,   [4.9, 5.75, 7],   0.8, 0.525, 0.6,  6.1];
-jst_ph_header = ["jst_ph_header",2.0,   9, 3.4, 0.64, silver, grey(90), 0,   [3.9, 4.5,  6],   0.6, 0.55,  0.25, 4.8];
-jst_zh_header = ["jst_zh_header",1.5, 7.4, 3.4, 0.5 , silver, grey(90), 0,   [3.0, 3.5,4.5],   0.5, 0.45,  0.25, 3.7];
+jst_xh_header = ["jst_xh_header",2.5,  10, 3.4, 0.64, gold,   "white", 0,   [4.9, 5.75, 7],   0.8, 0.525, 0.6,  6.1];
+jst_ph_header = ["jst_ph_header",2.0,   9, 3.4, 0.64, silver, "white", 0,   [3.9, 4.5,  6],   0.6, 0.55,  0.25, 4.8];
+jst_zh_header = ["jst_zh_header",1.5, 7.4, 3.4, 0.5 , silver, "white", 0,   [3.0, 3.5,4.5],   0.5, 0.45,  0.25, 3.7];

 pin_headers = [ 2p54header ];

--- a/vitamins/radial.scad
+++ b/vitamins/radial.scad
@@ -0,0 +1,137 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Radial components for PCBs.
+//
+include <../utils/core/core.scad>
+include <../utils/sweep.scad>
+include <../utils/rounded_polygon.scad>
+include <../utils/rounded_cylinder.scad>
+
+function rd_xtal_size(type)   = type[1]; //! Crystal length, width and height and optional corner radius
+function rd_xtal_flange(type) = type[2]; //! Crystal flange width and thickness
+function rd_xtal_pitch(type)  = type[3]; //! Crystal lead pitch
+function rd_xtal_lead_d(type) = type[4]; //! Crystal lead diameter
+
+module cylindrical_wrap(r, h = eps) { //! Wrap a 2D child extruded to height `h` around a cylinder with radius `r`.
+    sides = r2sides(r);
+    dx = 2 * r * tan(180 / sides);
+    for(i = [0 : sides - 1])
+        rotate((i - 0.5) * 360 / sides)
+            translate([0, r])
+                 rotate([-90, 0, 0])
+                    linear_extrude(h, center = true)
+                        intersection() {
+                            translate([(sides / 2 - i) * -dx, 0])
+                                children();
+
+                            square([dx, inf], center = true);
+                        }
+}
+
+module lead_positions(p, z) {
+    if(is_list(p))
+        for($x = [-1, 1], $y = [-1, 1])
+            translate([$x * p.x / 2, $y * p.y / 2, z])
+                children();
+    else
+        for($x = [-1, 1])
+            translate([$x * p / 2, 0, z])
+                children();
+}
+
+module radial_leads(ap, p, z, d, tail)
+    color(silver) {
+        assert(p == ap || z > 3 * d, "Must be space to bend the wires");
+        zl = tail + (p == ap ? z : 0);
+        let($fn = 16) {
+            lead_positions(p, -tail)
+                 rotate(90)
+                    cylinder(d = d, h = zl);
+
+
+            if(p != ap) {
+                assert(!is_list(p), "Bending four leads not supported yet");
+                sd = d * sign(p - ap);
+                path = [[0, z, 0], [0 + sd, z - d / 2, -sd], [p / 2 - ap / 2 - sd, d / 2, sd], [p / 2 - ap / 2, 0, 0]];
+                rpath = let($fn = 32) rounded_polygon(path);
+                lead_positions(ap, 0)
+                    rotate([90, 0, 90 * -$x + 90])
+                        sweep([for(p = rpath) [p.x, p.y, 0]], circle_points(d / 2));
+            }
+        }
+    }
+
+module rd_xtal(type, value, z = 0, pitch = undef, tail = 3) { //! Draw a crystal
+    vitamin(str("rd_xtal(", type[0], ", \"", value, "\"): Crystal ", type[0], " ", value));
+    s = rd_xtal_size(type);
+    r = len(s) < 4 ? s.y / 2 - eps : s[3];
+    f = rd_xtal_flange(type);
+    cp = rd_xtal_pitch(type);
+    p = is_undef(pitch) ? cp : pitch;
+    d = rd_xtal_lead_d(type);
+    r2 = 0.2;
+
+    color(silver) {
+        translate_z(z) {
+            if(s.y) {
+                $fn = 32;
+                rounded_rectangle([s.x, s.y, s.z - r2], r);
+
+                translate_z(s.z - r2)
+                    rounded_top_rectangle([s.x, s.y, r2], r, r2);
+            }
+            else
+                let($fn = 32)
+                    rounded_cylinder(r = s.x / 2, h = s.z, r2 = r2);
+
+            if(f) {
+                rounded_rectangle([s.x + 2 * f.x, s.y + 2 * f.x, f[1]], r + f.x);
+
+                if(is_list(cp))
+                    translate([-s.x / 2 - f.x, -s.y / 2 - f.x])
+                        cube([r + f.x, r + f.x, f[1]]); // Pin 1 marked by sharp corner on 4 pin packages
+            }
+        }
+        radial_leads(cp, p, z, d, tail);
+    }
+
+    color(grey(10)) {
+        if(!is_undef(value))
+            if(s.y)
+                translate_z(z + s.z)
+                    linear_extrude(eps)
+                        resize([s.x * 0.75, s.y / 2])
+                            text(value, halign = "center", valign = "center");
+            else
+                translate_z(z + s.z / 2)
+                    let($fn = 32)
+                        cylindrical_wrap(s.x / 2)
+                            rotate(-90)
+                               resize([s.z * 0.9, s.x * PI / 4])
+                                    text(value, halign = "center", valign = "center");
+        if(s.y)
+            lead_positions(cp, z)
+                cylinder(d = d * 4, h = 2 * eps, center = true);
+        else
+            translate_z(z)
+                cylinder(d = (s.x + cp) / 2, h = 2 * eps, center = true);
+    }
+}
--- a/vitamins/radials.scad
+++ b/vitamins/radials.scad
@@ -0,0 +1,33 @@
+//
+// NopSCADlib Copyright Chris Palmer 2023
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Radial components for PCBs.
+//
+
+// Crystals
+HC49    = ["HC49",    [10.5, 3.7, 13.5],    [0.475, 0.6], 4.88, 0.45];
+HC49_4H = ["HC49_4H", [10.5, 3.7,  3.5],    [0.475, 0.6], 4.88, 0.43];
+C_002RX = ["C_002RX", [ 2.0,   0,    6],    false,         0.7,  0.2];
+ACT1700 = ["ACT1700", [10.8, 10.8, 5.3, 1], [1,     0.6], [ inch(0.3), inch(0.3)], 0.45 ];
+ACT1100 = ["ACT1100", [20.4, 10.8, 5.3, 1], [1,     0.6], [ inch(0.6), inch(0.3)], 0.45 ];
+
+rd_xtals = [C_002RX, HC49_4H, ACT1700, ACT1100, HC49];
+
+use <radial.scad>
--- a/vitamins/screw.scad
+++ b/vitamins/screw.scad
@@ -41,6 +41,7 @@ function screw_washer(type)           = type[9];     //! Default washer
 function screw_nut(type)              = type[10];    //! Default nut
 function screw_pilot_hole(type)       = type[11];    //! Pilot hole radius for wood screws, tap radius for machine screws
 function screw_clearance_radius(type) = type[12];    //! Clearance hole radius
+function screw_thread_diameter(type)  = type[13];    //! Thread diameter, if different from nominal diamter
 function screw_nut_radius(type) = screw_nut(type) ? nut_radius(screw_nut(type)) : 0; //! Radius of matching nut
 function screw_boss_diameter(type) = max(washer_diameter(screw_washer(type)) + 1, 2 * (screw_nut_radius(type) + 3 * extrusion_width)); //! Boss big enough for nut trap and washer
 function screw_head_depth(type, d = 0) =             //! How far a counter sink head will go into a straight hole diameter d
@@ -87,47 +88,50 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
    vitamin(str("screw(", type[0], "_screw, ", length, arg(hob_point, 0, "hob_point"), arg(nylon, false, "nylon"), "): ", description));

    head_type   = screw_head_type(type);
-    rad         = screw_radius(type) - eps;
+    shaft_rad   = screw_radius(type) - eps;
    head_rad    = screw_head_radius(type);
    head_height = screw_head_height(type);
    socket_af   = screw_socket_af(type);
    socket_depth= screw_socket_depth(type);
    socket_rad  = socket_af / cos(30) / 2;
    max_thread  = screw_max_thread(type);
+    has_shoulder = !is_undef(screw_thread_diameter(type));
+    thread_rad = has_shoulder ? screw_thread_diameter(type) / 2 : screw_radius(type);
    thread = max_thread ? length >= max_thread + 5 ? max_thread
                                                   : length
                        : length;
-    d = 2 * screw_radius(type);
-    pitch = metric_coarse_pitch(d);
+    thread_offset = has_shoulder ? thread : 0;
+    thread_d = 2 * thread_rad;
+    pitch = metric_coarse_pitch(thread_d);
    colour = nylon || head_type == hs_grub ? grey(40) : grey(80);

    module shaft(socket = 0, headless = false) {
-        point = screw_nut(type) ? 0 : 3 * rad;
-        shank  = length - thread - socket;
+        point = screw_nut(type) ? 0 : 3 * shaft_rad;
+        shank  = length - socket - (has_shoulder ? 0 : thread);

        if(show_threads && !point && pitch)
-            translate_z(-length)
-                male_metric_thread(d, pitch, thread - (shank > 0 || headless ? 0 : socket), false, top = headless ? -1 : 0, solid = !headless, colour = colour);
+            translate_z(-length - thread_offset)
+                male_metric_thread(thread_d, pitch, thread - (shank > 0 || headless ? 0 : socket), false, top = headless ? -1 : 0, solid = !headless, colour = colour);
        else
            color(colour * 0.9)
                rotate_extrude() {
-                    translate([0, -length + point])
-                        square([rad, length - socket - point]);
+                    translate([0, -length + point - thread_offset])
+                        square([thread_rad - eps, length - socket - point]);

                    if(point)
                        polygon([
-                            [0.4, -length], [0, point - length], [rad, point - length]
+                            [0.4, -length], [0, point - length], [shaft_rad, point - length]
                        ]);
                }

        if(shank > 0)
            color(colour)
                translate_z(-shank - socket)
-                    cylinder(r = rad + eps, h = shank);
+                    cylinder(r = shaft_rad + eps, h = shank);
    }

    module cs_head(socket_rad, socket_depth) {
-        head_t = rad / 5;
+        head_t = shaft_rad / 5;
        head_height = head_rad + head_t;

        color(colour) {
@@ -173,7 +177,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
        }
        if(head_type == hs_grub) {
            color(colour) {
-                r = show_threads ? rad - pitch / 2 : rad;
+                r = show_threads ? shaft_rad - pitch / 2 : shaft_rad;
                translate_z(-socket_depth)
                    linear_extrude(socket_depth)
                        difference() {
@@ -328,6 +332,19 @@ module screw_polysink(type, h = 100, alt = false, sink = 0) { //! A countersink
        }
 }

+module screw_keyhole(type, h = 0) { //! Make keyhole slot to accept and retain screw head
+    r = screw_head_radius(type);
+    extrude_if(h) {
+        translate([0, - 2 * r])
+            drill(r + 0.5, 0);
+
+        hull()
+            for(y = [0, -2 * r])
+                translate([0, y])
+                    drill(screw_clearance_radius(type), 0);
+    }
+}
+
 module screw_and_washer(type, length, star = false, penny = false) { //! Screw with a washer which can be standard or penny and an optional star washer on top
    washer = screw_washer(type);
    head_type = screw_head_type(type);
--- a/vitamins/screws.scad
+++ b/vitamins/screws.scad
@@ -103,6 +103,9 @@ M8_hex_screw     = ["M8_hex", "M8 hex",         hs_hex,   8, 15,  5.65,   0,   0

 M3_low_cap_screw = ["M3_low_cap", "M3 low cap", hs_cap,   3, 5.5, 2,    1.5, 2.0, 18,  M3_washer, M3_nut,   M3_tap_radius,    M3_clearance_radius];

+M3_shoulder_screw= ["M3_shoulder", "M3 shoulder",hs_cap,  4, 7.0, 2.4,  1.5, 3.0, 6,   M4_washer, M3_nut,   M3_tap_radius,    2,   3];
+M4_shoulder_screw= ["M4_shoulder", "M4 shoulder",hs_cap,  5, 9.0, 2.4,  1.5, 3.0, 8,   M5_washer, M4_nut,   M4_tap_radius,    2.5, 4];
+
 M3_grub_screw    = ["M3_grub", "M3 grub",       hs_grub,  3,   0, 0,    2.5, 1.5, 0,   M3_washer, M3_nut,   M3_tap_radius,    M3_clearance_radius];
 M4_grub_screw    = ["M4_grub", "M4 grub",       hs_grub,  4,   0, 0,    2.4, 2.0, 0,   M4_washer, M4_nut,   M4_tap_radius,    M4_clearance_radius];
 M5_grub_screw    = ["M5_grub", "M5 grub",       hs_grub,  5,   0, 0,    2.4, 2.5, 0,   M5_washer, M5_nut,   M5_tap_radius,    M5_clearance_radius];
@@ -117,6 +120,7 @@ No8_screw        = ["No8", "No8 pan wood",      hs_pan, 4.2, 8.2, 3.05,   0,   0
 screw_lists = [
 [ M2_cap_screw,    M2p5_cap_screw, M3_cap_screw,    M4_cap_screw,    M5_cap_screw,    M6_cap_screw, M8_cap_screw],
 [ 0,               0,              M3_low_cap_screw],
+[ 0,               0,              M3_shoulder_screw, M4_shoulder_screw],
 [ M2_cs_cap_screw, 0,              M3_cs_cap_screw, M4_cs_cap_screw, M5_cs_cap_screw, M6_cs_cap_screw, M8_cs_cap_screw],
 [ M2_dome_screw,   M2p5_dome_screw,M3_dome_screw,   M4_dome_screw,   M5_dome_screw],
 [ 0,               0,              M3_hex_screw,    M4_hex_screw,    M5_hex_screw,    M6_hex_screw, M8_hex_screw],
--- a/vitamins/shaft_coupling.scad
+++ b/vitamins/shaft_coupling.scad
@@ -26,6 +26,7 @@ function sc_length(type)       = type[1]; //! Coupling length
 function sc_diameter(type)     = type[2]; //! Coupling outer diameter
 function sc_diameter1(type)    = type[3]; //! Diameter of smaller shaft
 function sc_diameter2(type)    = type[4]; //! Diameter of larger shaft
+function sc_flexible(type)     = type[5]; //! Flexible coupling

 module shaft_coupling(type, colour = "silver") { //! Draw the shaft coupling
    vitamin(str("shaft_coupling(", type[0], "): Shaft coupling ", type[0]));
@@ -34,6 +35,7 @@ module shaft_coupling(type, colour = "silver") { //! Draw the shaft coupling
    radius = sc_diameter(type) / 2;
    r1 = sc_diameter1(type) / 2;
    r2 = sc_diameter2(type) / 2;
+    flexible = is_undef(sc_flexible(type)) ? false : sc_flexible(type);

    grub_length = 3;
    module grub_screw_positions() {
@@ -54,6 +56,11 @@ module shaft_coupling(type, colour = "silver") { //! Draw the shaft coupling

                tube(radius, r2, length / 2, false);
            }
+            if (flexible) {
+                linear_extrude(length/3, center=true, convexity = 20, twist = -5 * 360)
+                    translate([r1,0,0])
+                       square(radius-r1,1); 
+            }
            grub_screw_positions()
                rotate([180, 0, 0])
                    cylinder(r = screw_radius(M3_grub_screw), h = 5);
--- a/vitamins/shaft_couplings.scad
+++ b/vitamins/shaft_couplings.scad
@@ -21,9 +21,9 @@
 //! Shaft couplings
 //

-//                                   L   D        d1   d2
-SC_5x8_rigid  = [ "SC_5x8_rigid",    25, 12.5,    5,   8 ];
-
-shaft_couplings = [SC_5x8_rigid];
+//                                   L   D        d1   d2 flex?
+SC_5x8_rigid  = [ "SC_5x8_rigid",    25, 12.5,    5,   8, false ];
+SC_6x8_flex   = [ "SC_6x8_flex",     25, 19,      6,   8, true ];
+shaft_couplings = [SC_5x8_rigid, SC_6x8_flex];

 use <shaft_coupling.scad>
--- a/vitamins/sheets.scad
+++ b/vitamins/sheets.scad
@@ -49,7 +49,7 @@ AL3       = [ "AL3",       "Aluminium tooling plate", 3, [0.9, 0.9, 0.9, 1    ],
 AL6       = [ "AL6",       "Aluminium tooling plate", 6, [0.9, 0.9, 0.9, 1    ], false];
 AL8       = [ "AL8",       "Aluminium tooling plate", 8, [0.9, 0.9, 0.9, 1    ], false];
 Steel06   = [ "Steel06",   "Sheet mild steel",       0.6,"silver"              , false];
-Spring05  = [ "Spring05",  "Bi-metal saw blade",     0.5,"#FBC300",              false];
+Spring08  = [ "Spring08",  "Bi-metal saw blade",     0.8,"#FBC300",              false];
 Silicone3 = [ "Silicone3", "Sheet silicone",          3, [0.9, 0.9, 0.9, 0.95 ], false];
 CF1 =       [ "CF1",       "Sheet carbon fiber",      1, grey(35),               false,  2,  2,  grey(20)];
 CF2 =       [ "CF2",       "Sheet carbon fiber",      2, grey(35),               false,  2,  2,  grey(20)];
@@ -57,6 +57,6 @@ CF3 =       [ "CF3",       "Sheet carbon fiber",      3, grey(35),


 sheets = [CF1, CF2, CF3, MDF6, MDF10, MDF12, MDF19, PMMA1p25, PMMA2, PMMA3, PMMA6, PMMA8, PMMA10,
-         glass2, DiBond, DiBond6, Cardboard, FoilTape, AL1_6, AL2, AL3, AL6, AL8, Steel06, Spring05, Silicone3, Foam20];
+         glass2, DiBond, DiBond6, Cardboard, FoilTape, AL1_6, AL2, AL3, AL6, AL8, Steel06, Spring08, Silicone3, Foam20];

 use <sheet.scad>
--- a/vitamins/smd.scad
+++ b/vitamins/smd.scad
@@ -19,11 +19,27 @@

 //
 //! Surface mount components for PCBs.
+//!
+//! Note that the value string for tantalum capacitors is the the capacitance in pico farads expressed as two digits plus an exponent plus a single letter voltage code.
+//! E.g. 475A is 4.7uF 10V on the parts list.
+//!
+//! | Code | Voltage |
+//! | ---- | ------- |
+//! | e | 2.5 |
+//! | G | 4 |
+//! | J | 6.3 |
+//! | A | 10 |
+//! | C | 16 |
+//! | D | 20 |
+//! | E | 25 |
+//! | V | 35 |
+//! | H | 50 |
 //
 include <../utils/core/core.scad>

 use <../utils/tube.scad>
 use <../utils/sweep.scad>
+use <../utils/sector.scad>

 function smd_led_size(type) = type[1]; //! Body length, width and height
 function smd_led_lens(type) = type[2]; //! Lens length width and height
@@ -228,3 +244,337 @@ module smd_soic(type, value) { //! Draw an SMD SOIC
                    text(value, halign = "center", valign = "center");

 }
+
+function smd_diode_size(type)   = type[1]; //! Body length, width and height
+function smd_diode_z(type)      = type[2]; //! Height above PCB surface
+function smd_diode_lead_z(type) = type[3]; //! Top of lead frame from top
+function smd_diode_leads(type)  = type[4]; //! Lead extent in x, width, thickness and gap
+function smd_diode_colour(type) = type[5]; //! Body colour
+
+module smd_diode(type, value) { //! Draw an SMD diode
+    vitamin(str("smd_diode(", type[0], "): ", type[0], " package ", value));
+
+    slant = 5;                              //! 5 degree body draft angle
+    size = smd_diode_size(type);
+    z0 = smd_diode_z(type);
+    z2 = z0 + size.z;
+    z1 = z2 - smd_diode_lead_z(type);
+    stripe = size.x / 5;
+    leads = smd_diode_leads(type);
+    gap = leads[3];
+    gap2 = gap - leads.z * 2;
+
+    color(smd_diode_colour(type))
+        difference() {
+            hull()
+                for(z = [z0, z1, z2], inset = abs(z - z1) * tan(slant))
+                    translate_z(z)
+                        cube([size.x - 2 * inset, size.y - 2 * inset, eps], center = true);
+
+            for(side = [-1, 1])
+                translate([side * (size.x / 2 - (size.x - gap2) / 4), 0, eps])
+                    cube([(size.x - gap2) / 2, size.y, 3 * leads.z], center = true);
+        }
+
+    color("white")
+        translate([-stripe / 2, 0, z2])
+            linear_extrude(eps)
+                resize([0.9 * (size.x - stripe), size.y / 2])
+                    text(value, halign = "center", valign = "center");
+
+    color(grey(90)) {
+        inset = (z2 - z1) * tan(slant);
+        translate([size.x / 2 - stripe, -size.y / 2 + inset, z2])
+            cube([stripe - inset, size.y - 2 * inset, eps]);
+    }
+
+    color(silver)
+        translate_z(z1 / 2)
+            rotate([90, 0, 0])
+                linear_extrude(leads.y, center = true, convexity = 3)  let($fn = 32)
+                    difference() {
+                        rounded_square([leads.x, z1], 2 * leads.z);
+
+                        rounded_square([leads.x - 2 * leads.z, z1 - 2 * leads.z], leads.z);
+
+                        translate([0, - z1 / 2])
+                            square([gap, leads.z * 2 + eps], center = true);
+                    }
+
+}
+
+function smd_tant_size(type)   = type[1]; //! Body length, width and height
+function smd_tant_z(type)      = type[2]; //! Height above PCB surface
+function smd_tant_lead_z(type) = type[3]; //! Top of lead frame from top
+function smd_tant_leads(type)  = type[4]; //! Lead extent in x, width, thickness and gap
+function smd_tant_colours(type)= type[5]; //! Colours of body and stripe
+
+module smd_tant(type, value) { //! Draw an SMD tantalum capacitor
+    function dig(c) = let(x = ord(c) - ord("0")) assert(x >= 0 && x <= 9, "expected value in the form 475A for 4.7uF 10V") x;
+    uF = is_undef(value) ? "" : str(" ,", (dig(value[0]) * 10 + dig(value[1])) * 10 ^ dig(value[2]) / 10^6, "uF");
+    codes = "eGJACDEVH";
+    voltages = [2.5, 4, 6.3, 10, 16, 20, 25, 35, 50];
+    volts = is_undef(value) ? "" : let(c = value[3])
+        assert(in(codes, c), str("expected the 4th character of value to be a voltage code: ", codes, ", got ", c))
+            str(", ", voltages[search(c, codes)[0]], "V");
+    vitamin(str("smd_tant(", type[0], "): SMD Tantalum capacitor package ", type[0][len(type[0]) -1], uF, volts));
+
+    size = smd_tant_size(type);
+    slant = 5;                              //! 5 degree body draft angle
+    z0 = smd_tant_z(type);
+    z2 = z0 + size.z;
+    z1 = z2 - smd_tant_lead_z(type);
+    stripe = size.x / 5;
+    leads = smd_tant_leads(type);
+    gap = leads[3];
+    gap2 = gap - leads.z * 2;
+    colours = smd_tant_colours(type);
+    inset = (z2 - z1) * tan(slant);
+
+    color(colours[0])
+        difference() {
+            hull()
+                for(z = [z0, z1, z2], inset = abs(z - z1) * tan(slant))
+                    translate_z(z)
+                        cube([size.x - 2 * inset, size.y - 2 * inset, eps], center = true);
+
+            for(side = [-1, 1])
+                translate([side * (size.x / 2 - (size.x - gap2) / 4), 0, eps])
+                    cube([(size.x - gap2) / 2, size.y, 3 * leads.z], center = true);
+        }
+
+    color("white") {
+        w = 0.9 * (size.x - stripe - inset);
+        translate([-size.x / 2 + inset + stripe + w / 2, 0, z2])
+            linear_extrude(eps)
+                resize([w, size.y / 2])
+                    text(value, halign = "center", valign = "center");
+    }
+
+    color(colours[1]) {
+        translate([-size.x / 2 + stripe * 0.2, -size.y / 2 + inset, z2])
+            cube([(stripe - inset) * 0.8, size.y - 2 * inset, eps]);
+    }
+
+    color(silver)
+        translate_z(z1 / 2)
+            rotate([90, 0, 0])
+                linear_extrude(leads.y, center = true, convexity = 3)  let($fn = 32)
+                    difference() {
+                        rounded_square([leads.x, z1], 2 * leads.z);
+
+                        rounded_square([leads.x - 2 * leads.z, z1 - 2 * leads.z], leads.z);
+
+                        translate([0, - z1 / 2])
+                            square([gap, leads.z * 2 + eps], center = true);
+                    }
+
+}
+
+
+function smd_inductor_size(type)   = type[1]; //! Body length, width and height
+function smd_inductor_z(type)      = type[2]; //! Height above PCB surface
+function smd_inductor_lead_z(type) = type[3]; //! Top of lead frame from top
+function smd_inductor_leads(type)  = type[4]; //! Lead extent in x, width, thickness and gap
+function smd_inductor_colour(type) = type[5]; //! Body colour
+
+module smd_inductor(type, value) { //! Draw an SMD inductor
+    vitamin(str("smd_inductor(", type[0], "): ", type[0], " package ", value));
+
+    size = smd_inductor_size(type);
+    z0 = smd_inductor_z(type);
+    z1 = smd_inductor_lead_z(type);
+    z2 = z0 + size.z;
+    leads = smd_inductor_leads(type);
+    gap = leads[3];
+    gap2 = gap - leads.z * 2;
+
+    color(smd_inductor_colour(type))
+        difference() {
+            translate_z(z0)
+                rounded_rectangle(size, 0.5);
+
+            for(side = [-1, 1])
+                translate([side * (size.x / 2 - (size.x - gap2) / 4), 0, eps])
+                    cube([(size.x - gap2) / 2, leads.y + 2 * leads.z, 3 * leads.z], center = true);
+        }
+
+    color("white")
+        translate_z(z2)
+            linear_extrude(eps)
+                resize([0.9 * size.x, size.y / 2])
+                    text(value, halign = "center", valign = "center");
+
+    color(silver)
+        translate_z(z1 / 2)
+            rotate([90, 0, 0])
+                linear_extrude(leads.y, center = true, convexity = 3)  let($fn = 32)
+                    difference() {
+                        rounded_square([leads.x, z1], 2 * leads.z);
+
+                        rounded_square([leads.x - 2 * leads.z, z1 - 2 * leads.z], leads.z);
+
+                        translate([0, - z1 / 2])
+                            square([gap, leads.z * 2 + eps], center = true);
+                    }
+}
+
+function smd_pot_size(type)     = type[1]; //! Base length, width and height
+function smd_pot_contacts(type) = type[2]; //! Contacts width, depth, pitch and width, depth, gap for center contact
+function smd_pot_wiper(type)    = type[3]; //! Wiper diameter, offset, thickness, height, d1, d2, d3, d4
+function smd_pot_cross(type)    = type[4]; //! Cross head slot for screwdriver
+function smd_pot_flat(type)     = type[5]; //! Flat at the back of the wiper
+
+module smd_pot(type, value) { //! Draw an SMD pot
+    vitamin(str("smd_pot(", type[0], "): ", type[0], " package ", value));
+
+    size = smd_pot_size(type);
+    contacts = smd_pot_contacts(type);
+    contacts_pitch = contacts[2];
+    centre_contact_w = contacts[3];
+    centre_contact_d = contacts[4];
+    centre_contact_gap = contacts[5];
+    wiper = smd_pot_wiper(type);
+    wiper_r1 = wiper.x / 2; // outer radius
+    wiper_y = wiper.y;
+    wiper_t = wiper.z;
+    wiper_h = wiper[3];
+    wiper_r2 = wiper[4] / 2;   // inner radius at the top
+    wiper_r3 = wiper[5] / 2;   // inner radius at the bottom
+    wiper_r4 = wiper[6] / 2;   // outer radius of rivet
+    wiper_r5 = wiper[7] / 2;   // inner radius of rivet
+    cross = smd_pot_cross(type);
+    flat = smd_pot_flat(type);
+    track_or = size.x * 0.48;
+    track_ir = track_or * 0.6;
+
+    color(grey(90))
+        translate_z(size.z / 2)
+            cube(size, center = true);
+
+    color(silver) {
+        for(side = [-1, 1])
+            translate([side * contacts_pitch, -size.y / 2 + contacts.y / 2, size.z / 2])
+                cube([contacts.x, contacts.y, size.z] + 2 * eps * [1,1,1], center = true);
+
+        translate([0, size.y / 2 - centre_contact_d / 2, size.z / 2])
+            render() difference() {
+                cube([centre_contact_w, centre_contact_d + 2 * eps, size.z + 2 * eps], center = true);
+
+                translate_z(size.z / 2)
+                    cube([centre_contact_gap, centre_contact_d + 4 * eps, 2 * eps], center = true);
+            }
+        slope_angle = atan((wiper_h - size.z - wiper_t) / (wiper_r2 - wiper_r3));
+        dx = wiper_t / tan(90 - slope_angle / 2);
+        translate([0, wiper_y]) {
+            render() difference() {
+                rotate_extrude() {
+                    polygon([
+                        [wiper_r5,      size.z + wiper_t],
+                        [wiper_r3,      size.z + wiper_t],
+                        [wiper_r2,      wiper_h],
+                        [wiper_r1,      wiper_h],
+                        [wiper_r1,      wiper_h - wiper_t],
+                        [wiper_r2 + dx, wiper_h - wiper_t],
+                        [wiper_r3 + dx, size.z],
+                        [wiper_r5,      size.z],
+                    ]);
+                    r = (wiper_r4 - wiper_r5) / 2;
+                    translate([wiper_r5 + r, size.z + wiper_t])
+                        circle(r, $fn = 16);
+                }
+
+                translate_z(size.z + wiper_t)
+                    linear_extrude(wiper_h - size.z - wiper_t)
+                        difference() {
+                            union() {
+                                square(cross, center = true);
+
+                                rotate(90)
+                                    square(cross, center = true);
+                            }
+                            circle(wiper_r4 + eps);
+                        }
+
+            }
+            translate([0, -(wiper_r1 + cross.x / 2) / 2, wiper_h - wiper_t / 2])
+                cube([flat, wiper_r1 - cross.x / 2, wiper_t], center = true);
+        }
+    }
+
+    color("black")
+        translate([0, wiper.y, size.z])
+            linear_extrude(eps) {
+                difference() {
+                    sector(track_or, -270 / 2 + 90, 270 / 2 + 90);
+                    circle(track_ir);
+                }
+                track_w = track_or - track_ir;
+                track_l = wiper.y - track_ir / sqrt(2) + size.y / 2 - contacts.y;
+                for(side = [-1, 1])
+                    translate([side * (track_ir / sqrt(2) + track_w / 2), -wiper.y -size.y / 2 + track_l / 2 + contacts.y])
+                        square([track_w, track_l], center = true);
+            }
+}
+
+function smd_coax_base_size(type) = type[1]; //! Size of the insulating base
+function smd_coax_base_r(type)    = type[2]; //! Corner radius of the base
+function smd_coax_tube(type)      = type[3]; //! OD, ID, height
+function smd_coax_groove(type)    = type[4]; //! Groove id, width and z
+function smd_coax_pin_d(type)     = type[5]; //! Central pin diameter
+function smd_coax_lug_size(type)  = type[6]; //! lug size
+function smd_contact_size(type)   = type[7]; //! contact size
+
+module smd_coax(type) { //! Draw an SMD coaxial connector
+    vitamin(str("smd_coax(", type[0], "): SMD coax connector type: ", type[0]));
+
+    size = smd_coax_base_size(type);
+    t = smd_coax_tube(type);
+    g = smd_coax_groove(type);
+    chamfer = (t.x - g.x) / 2;
+    pin_r = smd_coax_pin_d(type) / 2;
+    lug = smd_coax_lug_size(type);
+    contact = smd_contact_size(type);
+    $fn = 64;
+
+    color(grey(90))
+        translate_z(eps)
+            rounded_rectangle(size, smd_coax_base_r(type));
+
+    color(gold) {
+        rotate_extrude() {
+            polygon([
+                [t.y / 2, 0.1],
+                [t.y / 2, t.z],
+                [g.x / 2, t.z],
+                [t.x / 2, t.z - chamfer],
+                [t.x / 2, g.z + g.y / 2 + chamfer],
+                [g.x / 2, g.z + g.y / 2],
+                [g.x / 2, g.z - g.y / 2],
+                [t.x / 2, g.z - g.y / 2 - chamfer],
+                [t.x / 2, 0.1],
+            ]);
+        }
+        hull() {
+            translate_z(t.z - pin_r)
+                sphere(pin_r);
+
+            translate_z(0.1)
+                cylinder(r = pin_r, h = eps);
+        }
+
+        for(side = [-1, 1])
+            translate([side * size.x / 2, 0, lug.z / 2])
+                cube(lug, center = true);
+
+        rotate(180)
+            translate([-contact.x / 2, 0])
+                cube([contact.x, contact.y / 2, contact.z]);
+
+        cylinder(r = pin_r * 9 / 5, h = 0.1);
+
+        tube_wall = (t.x - t.y) / 2;
+        translate([-contact.x / 2, 0, (size.z - tube_wall) / 2])
+            cube([contact.x, contact.y / 2, tube_wall]);
+    }
+}
--- a/vitamins/smds.scad
+++ b/vitamins/smds.scad
@@ -27,27 +27,55 @@ LED1206 = ["LED1206", [3.2, 1.6, 0.5], [2.0, 1.6, .6]];

 smd_leds = [LED0603, LED0805, LED1206];

+RES0402 = ["RES0402", [1.0, 0.5, 0.35], 0.2, 1/16];
+RES0502 = ["RES0502", [1.3, 0.6, 0.38], 0.2, 1/20];
 RES0603 = ["RES0603", [1.6, 0.8, 0.45], 0.3, 1/10];
 RES0805 = ["RES0805", [2.0, 1.2, 0.45], 0.4, 1/8];
 RES1206 = ["RES1206", [3.1, 1.6, 0.6],  0.5, 1/4];

-smd_resistors = [RES0603, RES0805, RES1206];
+smd_resistors = [RES0402, RES0502, RES0603, RES0805, RES1206];

+CAP0402 = ["CAP0402", [1.0, 0.5], 0.2];
+CAP0502 = ["CAP0502", [1.3, 0.6], 0.2];
 CAP0603 = ["CAP0603", [1.6, 0.8], 0.3];
 CAP0805 = ["CAP0805", [2.0, 1.2], 0.4];
 CAP1206 = ["CAP1206", [3.1, 1.6], 0.5];

-smd_capacitors = [CAP0603, CAP0805, CAP1206];
+smd_capacitors = [CAP0402, CAP0502, CAP0603, CAP0805, CAP1206];

 SOT23  = ["SOT23",  [3,   1.4, 1.0], 0.05, 0.66, 1.9, 2.6, [0.4, 0.45,  0.15], 0.4];
 SOT223 = ["SOT223", [6.5, 3.5, 1.6], 0.05, 0.89, 2.3, 7.0, [0.7, 0.95, 0.25], 3];

 smd_sots = [SOT23, SOT223];

-SOIC8  = ["SOIC8",  [4.90, 3.90, 1.25], 0.10, 0.66, 1.27, 6.00, [0.31, .50, 0.20]];
-SOIC16 = ["SOIC16", [9.90, 3.90, 1.25], 0.10, 0.66, 1.27, 6.00, [0.31, .50, 0.20]];
-SOIC18 = ["SOIC18", [11.40, 7.50, 2.00], 0.10, 1.20, 1.27, 10.30, [0.31, .50, 0.20]];
+SOIC8  = ["SOIC8",  [4.90, 3.90, 1.25], 0.10, 0.66, 1.27, 6.00,  [0.31, .50, 0.20]];
+SOIC14 = ["SOIC14", [8.70, 3.90, 1.25], 0.10, 0.66, 1.27, 6.00,  [0.31, .50, 0.20]];
+SOIC16 = ["SOIC16", [9.90, 3.90, 1.25], 0.10, 0.66, 1.27, 6.00,  [0.31, .50, 0.20]];
+SOIC18 = ["SOIC18", [11.40,7.50, 2.00], 0.10, 1.20, 1.27, 10.30, [0.31, .50, 0.20]];

-smd_soics = [SOIC8, SOIC16, SOIC18];
+smd_soics = [SOIC8, SOIC14, SOIC16, SOIC18];
+
+DO214AC = ["DO214AC", [4.0, 2.5, 2.0], 0.1, 1, [4.8, 1.2, 0.15, 2], grey(20)];
+
+smd_diodes = [DO214AC];
+
+TANT_A = ["TANT_A", [3.0, 1.6, 1.6], 0.1, 0.8,  [3.2, 1.2, 0.08, 1.1], ["#E9D769", "#E9B44A"]];
+TANT_B = ["TANT_B", [3.3, 2.8, 1.9], 0.1, 0.95, [3.5, 2.2, 0.08, 1.4], ["#E9D769", "#E9B44A"]];
+TANT_C = ["TANT_C", [5.8, 3.2, 2.6], 0.1, 1.3,  [6.0, 2.2, 0.08, 2.9], ["#E9D769", "#E9B44A"]];
+
+smd_tants = [TANT_A, TANT_B, TANT_C];
+
+IND2525 = ["IND2525", [6.75, 6.75, 2], 0.1, 1.75, [7.24, 3.2, 0.15, 4.4], grey(50)];
+
+smd_inductors = [IND2525];
+
+TC33X1 = ["TC33X1", [3.0, 3.8, 0.5], [0.95, 0.9, 0.88, 1.5, 0.2, 0.75],[3.0, 0.1, 0.2, 1.2, 1.7, 1.2, 1, 0.5], [2.1, 0.5], 1.5];
+
+smd_pots = [TC33X1];
+
+
+U_FL_R_SMT_1 = ["U_FL_R_SMT_1", [2.6, 2.6, 0.35], 0.2, [2, 1.7, 1.25], [1.86, 0.09, 0.6], 0.5, [0.4, 1.8, 0.2], [0.6, 3.1, 0.2]];
+
+smd_coaxs = [U_FL_R_SMT_1];

 use <smd.scad>
--- a/vitamins/stl/Molex_5023860470.stl
+++ b/vitamins/stl/Molex_5023860470.stl
--- a/vitamins/tubings.scad
+++ b/vitamins/tubings.scad
@@ -19,23 +19,25 @@

 //
 // Tubing and sleeving
-//                            Description           OD        ID  Colour
-PVC64         = ["PVC64",     "PVC aquarium tubing", 6,        4, [0.8, 0.8, 0.8, 0.75 ]];
-PVC85         = ["PVC85",     "PVC aquarium tubing", 8,        5, [0.8, 0.8, 0.8, 0.75 ]];
-NEOP85        = ["NEOP85",    "Neoprene tubing",     8,        5, [0.2,0.2,0.2]];
-PTFE07        = ["PTFE07",    "PTFE sleeving",       1.2,   0.71, [0.95, 0.95, 0.95, 0.9]];
-PTFE20        = ["PTFE20",    "PTFE sleeving",       2.6,      2, [0.95, 0.95, 0.95, 0.9]];
-PTFE2_4       = ["PTFE2_4",   "PTFE tubing",         4,        2, [0.95, 0.95, 0.95, 0.9]];
-PTFE2_3       = ["PTFE2_3",   "PTFE tubing",         3,        2, [0.95, 0.95, 0.95, 0.9]];
-PTFE4_6       = ["PTFE4_6",   "PTFE tubing",         6,        4, [0.95, 0.95, 0.95, 0.9]];
-PF7           = ["PF7",       "PTFE tubing",         46/10, 3.84, [0.95, 0.95, 0.95, 0.9]];
-HSHRNK16      = ["HSHRNK16",  "Heatshrink sleeving", 2.0,    1.6, "grey"];
-HSHRNK24      = ["HSHRNK24",  "Heatshrink sleeving", 2.8,    2.4, "grey"];
-HSHRNK32      = ["HSHRNK32",  "Heatshrink sleeving", 3.6,    3.2, "grey"];
-HSHRNK64      = ["HSHRNK64",  "Heatshrink sleeving", 6.8,    6.4, "grey"];
-HSHRNK100     = ["HSHRNK100", "Heatshrink sleeving",10.4,   10.0,  [0.2,0.2,0.2]];
-CARBONFIBER10 = ["CBNFIB10",  "Carbon fiber",       10.0,    8.0,  [0.3,0.3,0.3]];
+//                                Description                OD        ID  Colour
+PVC64         = ["PVC64",         "PVC aquarium tubing",      6,        4, [0.8, 0.8, 0.8, 0.75 ]];
+PVC85         = ["PVC85",         "PVC aquarium tubing",      8,        5, [0.8, 0.8, 0.8, 0.75 ]];
+NEOP85        = ["NEOP85",        "Neoprene tubing",          8,        5, [0.2,0.2,0.2]];
+PTFE07        = ["PTFE07",        "PTFE sleeving",            1.2,   0.71, [0.95, 0.95, 0.95, 0.9]];
+PTFE20        = ["PTFE20",        "PTFE sleeving",            2.6,      2, [0.95, 0.95, 0.95, 0.9]];
+PTFE2_4       = ["PTFE2_4",       "PTFE tubing",              4,        2, [0.95, 0.95, 0.95, 0.9]];
+PTFE2_3       = ["PTFE2_3",       "PTFE tubing",              3,        2, [0.95, 0.95, 0.95, 0.9]];
+PTFE4_6       = ["PTFE4_6",       "PTFE tubing",              6,        4, [0.95, 0.95, 0.95, 0.9]];
+PF7           = ["PF7",           "PTFE tubing",              46/10, 3.84, [0.95, 0.95, 0.95, 0.9]];
+HSHRNK16      = ["HSHRNK16",      "Heatshrink sleeving",      2.0,    1.6, "grey"];
+HSHRNK24      = ["HSHRNK24",      "Heatshrink sleeving",      2.8,    2.4, "grey"];
+HSHRNK32      = ["HSHRNK32",      "Heatshrink sleeving",      3.6,    3.2, "grey"];
+HSHRNK64      = ["HSHRNK64",      "Heatshrink sleeving",      6.8,    6.4, "grey"];
+HSHRNK100     = ["HSHRNK100",     "Heatshrink sleeving",     10.4,   10.0,  [0.2,0.2,0.2]];
+STFE4_3p2_CLR = ["STFE4_3p2_CLR", "PTFE heatshrink sleeving", 3.7,    3.2,  [0.95, 0.95, 0.95, 0.5]];
+STFE4_6p4_CLR = ["STFE4_6p4_CLR", "PTFE heatshrink sleeving", 7.0,    6.4,  [0.95, 0.95, 0.95, 0.5]];
+CARBONFIBER10 = ["CBNFIB10",      "Carbon fiber",            10.0,    8.0,  [0.3,0.3,0.3]];

-tubings = [PVC64, PVC85, NEOP85, PTFE07, PTFE20, PF7, PTFE2_3, PTFE2_4, PTFE4_6, HSHRNK16, HSHRNK24, HSHRNK64, HSHRNK100, CARBONFIBER10];
+tubings = [PVC64, PVC85, NEOP85, PTFE07, PTFE20, PF7, PTFE2_3, PTFE2_4, PTFE4_6, HSHRNK16, HSHRNK24, HSHRNK64, HSHRNK100, STFE4_3p2_CLR, STFE4_6p4_CLR, CARBONFIBER10];

 use <tubing.scad>
--- a/vitamins/veroboard.scad
+++ b/vitamins/veroboard.scad
@@ -60,13 +60,14 @@ module solder_meniscus(type, ir = 0.3, r = undef) { //! Draw a solder meniscus
            }
 }

-module vero_grid_pos(type, x, y) { //! Convert grid position to offset from the centre
-    holes = vero_holes(type);
-    strips = vero_strips(type);
-    translate([((x + holes) % holes)    - holes / 2 + 0.5,
-               ((y + strips) % strips) - strips / 2 + 0.5] * vero_pitch(type))
+function vero_grid_pos(type, x, y) = //! Convert grid position to offset from the centre
+    let(holes = vero_holes(type), strips = vero_strips(type))
+        [((x + holes) % holes)    - holes / 2 + 0.5,
+         ((y + strips) % strips) - strips / 2 + 0.5] * vero_pitch(type);
+
+module vero_grid_pos(type, x, y) //! Convert grid position to offset from the centre
+    translate(vero_grid_pos(type, x, y))
        children();
-}

 module vero_mounting_hole_positions(type) //! Positions children at the mounting holes
    for(p = vero_mounting_holes(type))
@@ -147,23 +148,25 @@ module vero_components(type, cutouts = false, angle = undef)
 module vero_cutouts(type, angle = undef) //! Make cutouts to clear components
    vero_components(type, true, angle);

-module veroboard_assembly(type, height, thickness, flip = false, ngb = false) //! Draw the assembly with components and fasteners in place
+module veroboard_assembly(type, ngb = false) //! Draw the assembly with components
+pose_vflip(exploded = true)
 assembly(vero_assembly(type), ngb = ngb) {
+    veroboard(type);
+
+    vero_components(type);
+
+    for(r = vero_joints(type))
+        for(x = r.x, y = r.y)
+            vero_grid_pos(type, x, y)
+                 vflip()
+                    solder_meniscus(type);
+}
+
+module veroboard_fasteners(type, height, thickness, flip = false) { //! Draw the fasteners in place
    screw = vero_screw(type);
    nut = screw_nut(screw);
    screw_length = screw_length(screw, height + thickness + vero_thickness(type), 2, nyloc = true);

-    translate_z(height) {
-        veroboard(type);
-
-        vero_components(type);
-
-        for(r = vero_joints(type))
-            for(x = r.x, y = r.y)
-                vero_grid_pos(type, x, y)
-                     vflip()
-                        solder_meniscus(type);
-    }
    vero_mounting_hole_positions(type) {
        translate_z(height + vero_thickness(type))
            if(flip)
@@ -181,3 +184,11 @@ assembly(vero_assembly(type), ngb = ngb) {
                    nut_and_washer(nut, true);
    }
 }
+
+module veroboard_fastened_assembly(type, height, thickness, flip = false, ngb = false) { //! Draw the assembly with components and fasteners in place
+
+    translate_z(height)
+        veroboard_assembly(type, ngb = ngb);
+
+    veroboard_fasteners(type, height, thickness, flip);
+}
--- a/vitamins/wire.scad
+++ b/vitamins/wire.scad
@@ -25,8 +25,12 @@ use <../utils/sweep.scad>
 use <../utils/maths.scad>
 include <zipties.scad>

-module wire(colour, strands, length, strand = 0.2)   //! Add stranded wire to the BOM
-    vitamin(str(": Wire ", colour, " ", strands, "/", strand, "mm strands, length ",length, "mm"));
+module wire(colour, strands, length, strand = 0.2, d = 0, path = []) {  //! Add stranded wire to the BOM and draw it if diameter and path specified
+    vitamin(str(": Wire ", colour, " ", strands, "/", strand, "mm strands, length ", ceil(length + path_length(path)), "mm"));
+
+    if(path && d)
+         color(colour) sweep(path, circle_points(r = d / 2));
+}

 module ribbon_cable(ways, length)                   //! Add ribbon cable to the BOM
    vitamin(str(": Ribbon cable ", ways, " way ", length, "mm"));
Author	SHA1	Message	Date
Chris Palmer	06a286dc98	Fixed missing BOM entry for JST connectors. Fixed default colour for JST connectors. Corrected BOM entry to show right angle options on Molex and pin headers.	2023-05-08 19:51:29 +01:00
Chris Palmer	f5496c373a	Fixed typo in smd_diode(DO214AC) package name.	2023-05-08 19:42:05 +01:00
Chris Palmer	1c6d3d8e95	Updated changelog.	2023-05-01 12:22:10 +01:00
Chris Palmer	5e24a32a0b	Added ESP32 camera.	2023-05-01 12:18:12 +01:00
Chris Palmer	fbd8d8c7cd	Added smd_coax	2023-05-01 12:14:23 +01:00
Chris Palmer	c77b18ebc9	Updated changelog.	2023-04-29 09:23:57 +01:00
Chris Palmer	b1592f51d4	Fixed bom.py, views.py and tests.py so that vitamin descriptions can contain more than one colon.	2023-04-29 09:22:35 +01:00
Chris Palmer	deb0c14aa2	Updated changelog.	2023-04-23 20:33:27 +01:00
Chris Palmer	cc82cf2a6c	Merge branch 'martinbudden-shoulder_screws'	2023-04-23 20:31:18 +01:00
Chris Palmer	61fc194995	Refactored for readability.	2023-04-23 20:30:12 +01:00
Chris Palmer	f8af61568a	Updated images and readme.	2023-04-23 17:15:29 +01:00
Chris Palmer	05d16841c4	Fixed thread pitch.	2023-04-23 17:15:02 +01:00
Chris Palmer	61f1dcc509	Merge branch 'shoulder_screws' of https://github.com/martinbudden/NopSCADlib into martinbudden-shoulder_screws	2023-04-22 19:11:39 +01:00
Chris Palmer	5fc70e19ac	Added SMD Tantalum caps and 0502 and 0402 resistor and capacitors.	2023-04-22 12:12:12 +01:00
Martin Budden	07e7eb77f7	Added support for shoulder screws.	2023-04-05 12:32:13 +01:00
Chris Palmer	1c5d9a8ef5	Removed utility functions used by invert() from documentation as not generally useful.	2023-03-29 13:21:26 +01:00
Chris Palmer	d3f0bfc17f	Fixed typo in resistor comment.	2023-03-29 12:54:07 +01:00
Chris	81f3b084ab	Updated changelog.	2023-03-11 18:38:38 +00:00
Chris	62bd2b5597	Merge branch 'dirkjankrijnders-master'	2023-03-11 18:35:11 +00:00
Chris	18cd33c663	Fixed typos, corrected vitamin call, added boilerplate, updated images and readme.	2023-03-11 17:50:16 +00:00
Chris	e899306a13	Merge branch 'master' of https://github.com/dirkjankrijnders/NopSCADlib into dirkjankrijnders-master	2023-03-11 14:10:22 +00:00
Dirkjan Krijnders	ebfb330ac6	Added comments and make holes a linear_extrude result	2023-03-11 15:00:10 +01:00
Chris	07da7d8dc7	Removed Python2.7 from usage.md as no longer works.	2023-03-11 13:57:23 +00:00
Chris	38b52d13ee	Merge branch 'master' of https://github.com/dirkjankrijnders/NopSCADlib into dirkjankrijnders-master	2023-03-10 22:03:16 +00:00
Chris	5a3bbf967d	Fixed broken cover image.	2023-03-10 22:02:00 +00:00
Chris	ddb2f16b99	Updated changlog.	2023-03-10 21:49:21 +00:00
Chris	9d4d5aba17	veroboard_assembly() renamed veroboard_fastened_assembly(). veroboard_assembly() now doesn't include the fasteners.	2023-03-10 21:24:42 +00:00
Chris	d939401183	Added vero_grid_pos() function.	2023-03-10 21:11:03 +00:00
Chris	584542f87a	Added fastons.	2023-03-10 21:09:28 +00:00
Chris	62372a049b	The wire() module can now draw wires if a path is specified.	2023-03-10 20:49:41 +00:00
Chris	14698e5203	Added PTFE heatshrink sleeving.	2023-03-10 17:25:26 +00:00
Chris	14f6bb533a	Added sleeving_length to al_clad_resistor_assembly().	2023-03-10 16:04:17 +00:00
Chris	01e9aae698	Added TO220_size() and TO220_lead_pos(i, l).	2023-03-10 15:46:57 +00:00
Dirkjan Krijnders	c5fab08a45	Added photo_interrupter to the test	2023-03-08 16:51:08 +01:00
Dirkjan Krijnders	fecc93746a	Added vitamins for photo interrupters	2023-03-08 09:20:14 +01:00
Chris Palmer	27f9b242f2	Added crystal, transistors, diode and LEDs to Arduino Uno.	2023-02-04 00:09:16 +00:00
Chris Palmer	f07fda70cd	Wire links can now be sleeved.	2023-02-03 10:02:53 +00:00
Chris Palmer	abf1f1ab3f	PCB blocks can now have rounded edges for more realistic cans.	2023-02-01 18:31:33 +00:00
Chris Palmer	df06d1f57f	Upated changelog.	2023-02-01 01:33:04 +00:00
Chris Palmer	470d6d6216	Started radial components with crystals.	2023-02-01 01:31:06 +00:00
Chris Palmer	0e5e15a747	Added SOIC14 package.	2023-02-01 01:29:34 +00:00
Chris Palmer	3f84912e55	Added rounded_top_rectangle().	2023-02-01 01:27:01 +00:00
Chris Palmer	ff7041c285	Updated changelog.	2023-01-29 06:56:40 +00:00
Chris Palmer	dd8a100d9c	Merge branch 'elliotf-add-orange-pi-zero-2'	2023-01-29 06:54:28 +00:00
Chris Palmer	01eeafb255	Updated images and readme.	2023-01-29 06:54:02 +00:00
Chris Palmer	dd876c8fc9	Added vertical USB connector to PCB test.	2023-01-29 06:53:07 +00:00
Chris Palmer	ff40a276e1	Fixed display position in tests.	2023-01-29 06:52:30 +00:00
Chris Palmer	463c620cc3	Made a new row of PCBs in the test.	2023-01-29 06:41:47 +00:00
Chris Palmer	7b1a916043	Fixed vAx1 dimensions, removed flange and repositioned the tongue.	2023-01-29 06:20:35 +00:00
Chris Palmer	1a2a9bb512	Merge branch 'add-orange-pi-zero-2' of https://github.com/elliotf/NopSCADlib into elliotf-add-orange-pi-zero-2	2023-01-28 20:35:54 +00:00
Chris Palmer	adcb515d20	Updated changelog.	2023-01-28 20:27:50 +00:00
Chris Palmer	34719c3360	Box shelves now have screws in the corners to hold them down.	2023-01-28 20:25:38 +00:00
Chris Palmer	024439d4c2	Can now specify short inserts to be used for butt_boxes.	2023-01-28 20:22:53 +00:00
Chris Palmer	005c112ba9	Added values to the SMD capacitors on the example PCB.	2023-01-28 20:21:09 +00:00
Chris Palmer	dfbcbf84ab	Changed OpenGrab link as nicadrone.com has gone.	2023-01-28 20:15:15 +00:00
Elliot Foster	de051343d0	WiP of an Orange Pi Zero 2 PCB	2023-01-28 13:37:47 -06:00
Chris Palmer	b6e47ed9b7	Updated changelog.	2023-01-24 09:59:02 +00:00
Chris Palmer	6a529c91a7	Merge branch 'elliotf-add-raspberry-pi-3a'	2023-01-24 09:56:52 +00:00
Chris Palmer	e7e9313e71	Updated images and readme.	2023-01-24 09:56:19 +00:00
Chris Palmer	e19bb47273	Merge branch 'add-raspberry-pi-3a' of https://github.com/elliotf/NopSCADlib into elliotf-add-raspberry-pi-3a	2023-01-24 09:24:15 +00:00
Chris Palmer	494002aebe	Added test to MP1584EN PCB.	2023-01-24 09:21:58 +00:00
Chris Palmer	77e948f43c	Added can bus connectors to OpenGrab model. Tweaked some PCB component positions.	2023-01-24 09:21:14 +00:00
Chris Palmer	543cdb4e01	Incresed the clearance of holes made for pin header.	2023-01-24 09:19:32 +00:00
Elliot Foster	dab06ce4ca	Add Raspberry Pi 3 A+ to pcbs	2023-01-23 12:50:00 -06:00
Chris Palmer	2e25932d5c	Updated changelog.	2023-01-12 23:02:31 +00:00
Chris Palmer	ebd50bae53	Added SMD diodes, inductors and potentiometers. Complete set of components added to MP1584EN buck regulator.	2023-01-12 23:00:21 +00:00
Chris	8e47270607	Updated changelog.	2023-01-07 11:12:43 +00:00
Chris	ec3e752fc5	Added missing documentation for hinge_female() module.	2023-01-07 11:09:46 +00:00
Chris	de17726d20	Updated changelog.	2023-01-07 11:03:12 +00:00
Chris	8587d52d1b	Added screw_keyhole() module.	2023-01-07 10:50:32 +00:00
Chris	cec8c3a107	Added printed LED bezels.	2023-01-07 10:49:45 +00:00
Chris	848dcb86b9	Added 8mm LED.	2023-01-07 10:08:05 +00:00
Chris	a31f6f100c	Revised LED dimensions.	2023-01-07 09:24:04 +00:00
Chris	b3dd635889	Fixed duplicated dxf() calls in printed box and butt_box. Client code now calls dxf() so that the generated files can be used to speed up assembly views.	2023-01-07 09:21:04 +00:00
Chris Palmer	3c9004f12d	Updated changelog.	2022-12-06 17:14:54 +00:00
Chris Palmer	e256801206	Added comment to indicate the .py suffix may be needed on linux and OSX.	2022-12-06 17:07:40 +00:00
Chris	4080179a74	Merge pull request #246 from majekw/include-terminals Include terminal.scad in lib.scad to allow use of terminal_block().	2022-12-05 20:42:44 +00:00
Marek Wodzinski	9dc8062bef	Include terminal.scad in lib.scad to allow use of terminal_block().	2022-12-05 13:34:16 +01:00
Chris	c2e85a5833	Merge pull request #245 from drf5n/patch-1 update nuts.scad table comment	2022-10-26 13:37:41 +01:00
drf5n	f2313a3f0c	update nuts.scad table comment Change comment about nut sizes from radius to diameter.	2022-10-20 10:57:06 -04:00
Chris	d95e1e64ed	Udated changelog.	2022-09-29 12:00:53 +01:00
Chris	4eaaee6a4d	Merge branch 'jeroenrnl-nuthousing'	2022-09-29 11:58:06 +01:00
Chris	f1737d257b	Updated images and readme.	2022-09-29 11:57:49 +01:00
Jeroen Roos	ce258d6d4f	Leadnuts: add nuthousing	2022-09-27 21:50:28 +02:00
Chris	272b7efd45	Updated changelog.	2022-09-27 01:12:59 +01:00
Chris	e84b5721d7	Merge branch 'jeroenrnl-SC_flex'	2022-09-27 01:10:40 +01:00
Chris	ec85cc5d4c	Updated images and readme.	2022-09-27 01:10:23 +01:00
Chris	264e4366f6	Merge branch 'SC_flex' of https://github.com/jeroenrnl/NopSCADlib into jeroenrnl-SC_flex	2022-09-27 00:35:19 +01:00
Chris	233fba275d	Updated changelog.	2022-09-27 00:18:08 +01:00
Jeroen Roos	fb6695471f	Shaft coupling: Add flexible SC / 6x8 flexible SC Added the possibility for shaft couplings to be flexible and added a 6x8 example of such a coupling.	2022-09-24 14:17:15 +02:00