Added offset_paths() to sweep.scad.

show_path() now takes an optional radius.

CHANGELOG.md

@@ -3,6 +3,276 @@
 This changelog is generated by `changelog.py` using manually added semantic version tags to classify commits as breaking changes, additions or fixes.
 
 
+### [v21.18.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.18.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.17.0...v21.18.0 "diff with v21.17.0")
+*   2024-03-14 [`19dadcb`](https://github.com/nophead/NopSCADlib/commit/19dadcb58db0dd7408726c69d46cf2b7b26c764b "show commit") [C.P.](# "Chris Palmer") Updated images and readme.
+
+*   2024-03-14 [`c565f29`](https://github.com/nophead/NopSCADlib/commit/c565f2912e7319575fc6ec3262699b73305c46b4 "show commit") [V.](# "V.Shkriabets") Update MT3608 pcb module
+
+### [v21.17.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.17.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.16.1...v21.17.0 "diff with v21.16.1")
+*   2024-03-14 [`5579c0d`](https://github.com/nophead/NopSCADlib/commit/5579c0d988c6d7983d3884afa7e42fdb283109a8 "show commit") [C.P.](# "Chris Palmer") Fixed `box_shelf_bracket()` horizontal holes.
+Added a third child to `box_shelf_bracket()` to allow custom additions.
+
+*   2024-03-14 [`67408f8`](https://github.com/nophead/NopSCADlib/commit/67408f8422918416c617ec7389dbc09b2c62a2ae "show commit") [C.P.](# "Chris Palmer") Added `d_hole()` module.
+
+*   2024-03-14 [`929abbe`](https://github.com/nophead/NopSCADlib/commit/929abbefda2c380b121c775371f197860c6c3aff "show commit") [C.P.](# "Chris Palmer") Updated front page image.
+
+*   2024-03-14 [`c7727e7`](https://github.com/nophead/NopSCADlib/commit/c7727e7106e3829a6b5f6c501b1a082d540a4a68 "show commit") [C.P.](# "Chris Palmer") Added Sellotape to sheets.
+
+*   2024-03-14 [`1dbba5a`](https://github.com/nophead/NopSCADlib/commit/1dbba5a650f8dac2d05a5668008e61a5ec22ea4f "show commit") [C.P.](# "Chris Palmer") Added `camera_lens_height()` function.
+
+#### [v21.16.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.16.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.16.0...v21.16.1 "diff with v21.16.0")
+*   2024-03-14 [`db2a9a8`](https://github.com/nophead/NopSCADlib/commit/db2a9a8a24966f098d4c0c8157de98a885b79a85 "show commit") [C.P.](# "Chris Palmer") Ziptie test can now show wires with t `=` 0.
+
+*   2024-03-14 [`6ced9c8`](https://github.com/nophead/NopSCADlib/commit/6ced9c871c5a637dbe8494836a4233e1f6cd4971 "show commit") [C.P.](# "Chris Palmer") Fixed FOV for ESP32 camera being rotated.
+Shortened the ESP32 camera header pins.
+
+*   2024-03-14 [`d6b00fb`](https://github.com/nophead/NopSCADlib/commit/d6b00fbf5719239adc5e8b66f863c003a50806d3 "show commit") [C.P.](# "Chris Palmer") Removed unused test code.
+
+*   2024-03-14 [`2c996bb`](https://github.com/nophead/NopSCADlib/commit/2c996bb7a143a85c21833a69f56f2f47afabe072 "show commit") [C.P.](# "Chris Palmer") Fixed random error caused by not running bom first.
+
+### [v21.16.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.16.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.15.0...v21.16.0 "diff with v21.15.0")
+*   2024-02-19 [`fdb92ec`](https://github.com/nophead/NopSCADlib/commit/fdb92ec263d60a42e04f06abfeec5e1648a12b6b "show commit") [C.P.](# "Chris Palmer") Improved layout to fit into front page view.
+
+*   2024-02-18 [`f6404b9`](https://github.com/nophead/NopSCADlib/commit/f6404b939f714b3121dc6e9737cc24f3b9c64ebb "show commit") [J.R.](# "Jeroen Roos") Added T-Tracks and accessories
+
+### [v21.15.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.15.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.14.0...v21.15.0 "diff with v21.14.0")
+*   2024-02-19 [`30c67e7`](https://github.com/nophead/NopSCADlib/commit/30c67e742bb3603fa41b41e1a144989947e58ad7 "show commit") [C.P.](# "Chris Palmer") Updated the front page image.
+
+*   2024-02-12 [`efb1153`](https://github.com/nophead/NopSCADlib/commit/efb1153e2245fa67193cd7b49ac0926239c3b703 "show commit") [J.R.](# "Jeroen Roos") Add threaded inserts
+
+### [v21.14.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.14.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.13.1...v21.14.0 "diff with v21.13.1")
+*   2024-02-18 [`63a4271`](https://github.com/nophead/NopSCADlib/commit/63a4271c4c1bc97e93e67e8178515be1cfda9e43 "show commit") [C.P.](# "Chris Palmer") Updated libtest image.
+
+*   2024-02-18 [`0edf3a2`](https://github.com/nophead/NopSCADlib/commit/0edf3a2f75d729aa663836878d278226e7bd8094 "show commit") [C.P.](# "Chris Palmer") Cable clips can now handle up to 9 wires, have the nut and bolt flipped or use an insert.
+`cable_radius()` now handles cables with up to 20 wires.
+`cable_bundle()` and `cable_bundle_positions()` now handle bundles up to 9 wires.
+Added `cable_merge()`.
+
+#### [v21.13.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.13.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.13.0...v21.13.1 "diff with v21.13.0")
+*   2024-02-10 [`8540e04`](https://github.com/nophead/NopSCADlib/commit/8540e04a10d83be4ff454fa8999614e5137dd0ab "show commit") [C.P.](# "Chris Palmer") Metal hex pillars now chamfered.
+
+### [v21.13.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.13.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.12.0...v21.13.0 "diff with v21.12.0")
+*   2024-02-10 [`7947810`](https://github.com/nophead/NopSCADlib/commit/79478104d6b3a8673ae405606d2576ad98c4e90e "show commit") [C.P.](# "Chris Palmer") Dome option added to nut to draw acorn nuts.
+Chamfers added to nuts and hex head screws when manifold is used.
+
+*   2024-02-10 [`38196e9`](https://github.com/nophead/NopSCADlib/commit/38196e9f78f07d0f9a4eca0355cc6e99f29332fb "show commit") [C.P.](# "Chris Palmer") Mods to allow the manifold experimental option to be used.
+
+*   2024-02-05 [`9666c01`](https://github.com/nophead/NopSCADlib/commit/9666c018a0a99be8d24a2454a4c1448b09f83af0 "show commit") [C.P.](# "Chris Palmer") Made sheet overridable in `box_base_blank()`.
+
+### [v21.12.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.12.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.11.0...v21.12.0 "diff with v21.11.0")
+*   2024-02-05 [`38988ba`](https://github.com/nophead/NopSCADlib/commit/38988bacfa41dea19408b19cf06f134e51338ab0 "show commit") [C.P.](# "Chris Palmer") Updated images.
+
+*   2024-02-04 [`8298039`](https://github.com/nophead/NopSCADlib/commit/82980392c9c9d13aa4619db888bd38c620b09ac0 "show commit") [J.R.](# "Jeroen Roos") Add extra MDF thicknesses
+
+*   2024-02-05 [`1ce7b64`](https://github.com/nophead/NopSCADlib/commit/1ce7b64c73c77aa86f20c2b069ee031b30024818 "show commit") [C.P.](# "Chris Palmer") Updated image.
+
+*   2024-02-04 [`f85fdca`](https://github.com/nophead/NopSCADlib/commit/f85fdca051a3cd11a35bfe2424c50cc4da018de4 "show commit") [J.R.](# "Jeroen Roos") Add generating SVG file for CNC usage
+
+ * Generate SVG files, like DXF files for CNC usage
+
+*   2024-02-04 [`926dd8c`](https://github.com/nophead/NopSCADlib/commit/926dd8ca908030328d394dcc20e16ce036cbc51c "show commit") [C.P.](# "Chris Palmer") Reordered the PCB lists to fix the layout.
+Updated the images.
+
+*   2024-02-02 [`3961d7f`](https://github.com/nophead/NopSCADlib/commit/3961d7f1a4d3fd04a2fb174735d52ad8f95ecf7a "show commit") [L.B.](# "Lukas Burger") add HW-803 5V 1 way relay module
+
+*   2024-02-04 [`43b101a`](https://github.com/nophead/NopSCADlib/commit/43b101ae1eb063018b29eb97172722d1977c1c53 "show commit") [C.P.](# "Chris Palmer") Reordered the display list into reducing height for better layout.
+Updated the images.
+
+*   2024-01-31 [`1996189`](https://github.com/nophead/NopSCADlib/commit/1996189ab232820a16cfa4a4b2d627cf508d6eb9 "show commit") [L.B.](# "Lukas Burger") update readme file
+
+*   2024-01-30 [`9f8c309`](https://github.com/nophead/NopSCADlib/commit/9f8c3096435b7fea8a8870f07781a0f52adac7c3 "show commit") [L.B.](# "Lukas Burger") add display LCD2004A
+
+*   2024-02-04 [`e3ad327`](https://github.com/nophead/NopSCADlib/commit/e3ad32713dbb5dfab3a14d70f9c6f5f8aaaa59d1 "show commit") [C.](# "Chris") Rename `pcb_utils.scad` to `PCB_utils.scad`
+
+ * Fixed the filename case of `PCB_utils.scad`.
+
+*   2024-01-14 [`3995f68`](https://github.com/nophead/NopSCADlib/commit/3995f685dd31b087a2eec4cfe8b9f760f5eef3b9 "show commit") [C.P.](# "Chris Palmer") Removed debug `echo()`.
+
+### [v21.11.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.11.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.10.1...v21.11.0 "diff with v21.10.1")
+*   2024-01-14 [`41859ec`](https://github.com/nophead/NopSCADlib/commit/41859ec2245e3fee41cb9c79fb5a627193a4fec8 "show commit") [C.P.](# "Chris Palmer") Added `screw_thread_radius()` and `screw_angle()` functions.
+
+*   2024-01-14 [`cd95ef9`](https://github.com/nophead/NopSCADlib/commit/cd95ef95abed30e4004905972c9abcacdad0dc5e "show commit") [C.P.](# "Chris Palmer") Added GT2x12, GT3x6, GT3x9 and GT3x12 belts.
+
+*   2024-01-12 [`7a9e738`](https://github.com/nophead/NopSCADlib/commit/7a9e73830e16a843a14debb8d9b770243067cf63 "show commit") [C.P.](# "Chris Palmer") Belt part number is not always the same as the pitch.
+
+#### [v21.10.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.10.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.10.0...v21.10.1 "diff with v21.10.0")
+*   2023-12-01 [`ebe2dfd`](https://github.com/nophead/NopSCADlib/commit/ebe2dfd4fd8ba042b634030f7d463d0ba0d8c4cd "show commit") [C.P.](# "Chris Palmer") Fixed explode line position on short inserts.
+
+### [v21.10.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.10.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.9.1...v21.10.0 "diff with v21.9.1")
+*   2023-11-27 [`0137a43`](https://github.com/nophead/NopSCADlib/commit/0137a43a638777ecdf6b311579006c0922650a9c "show commit") [C.P.](# "Chris Palmer") Updated images and readme.
+
+*   2023-11-12 [`72e5d1a`](https://github.com/nophead/NopSCADlib/commit/72e5d1abfb744ddcdf665b02ba7a1cf2b6bcff38 "show commit") [X.](# "XrXca") Update `pcbs.scad`
+
+ * Update `pcbs.scad`
+
+ * Update `pcbs.scad`
+
+ * Update `pcbs.scad`
+
+*   2023-11-27 [`b5afd7b`](https://github.com/nophead/NopSCADlib/commit/b5afd7bd41a1a46b7a1745c30755b3fb6c25b9a1 "show commit") [C.P.](# "Chris Palmer") ESP-01M added.
+
+#### [v21.9.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.9.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.9.0...v21.9.1 "diff with v21.9.0")
+*   2023-11-26 [`b9d1017`](https://github.com/nophead/NopSCADlib/commit/b9d101749eb2b19963299d85b75f0fa489fba552 "show commit") [C.P.](# "Chris Palmer") Updated images due to pixel differences on new PC
+
+*   2023-11-26 [`17979d3`](https://github.com/nophead/NopSCADlib/commit/17979d320539ca861300ecd4e42c01a913861066 "show commit") [C.P.](# "Chris Palmer") Fixed typo in comment.
+
+*   2023-10-30 [`73567ed`](https://github.com/nophead/NopSCADlib/commit/73567eda396214f1f882d62fb1d8a0ecbf2e7d94 "show commit") [C.P.](# "Chris Palmer") MULTIWATT11 package now generates a BOM entry.
+
+*   2023-10-30 [`f5c74a8`](https://github.com/nophead/NopSCADlib/commit/f5c74a8561f1e76f331c2d0027ecfd34bb2e7f3b "show commit") [C.P.](# "Chris Palmer") Corrected gallery.
+
+*   2023-10-30 [`04090b8`](https://github.com/nophead/NopSCADlib/commit/04090b816bfa3b6587cf6dcddbd54e5a94cb2420 "show commit") [C.P.](# "Chris Palmer") Updated the gallery.
+
+*   2023-10-29 [`06d4918`](https://github.com/nophead/NopSCADlib/commit/06d49186300b03bf4699cefbbcef0c0b8f7e9caa "show commit") [C.P.](# "Chris Palmer") Updated examples.
+
+### [v21.9.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.9.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.8.0...v21.9.0 "diff with v21.8.0")
+*   2023-10-29 [`2d091b9`](https://github.com/nophead/NopSCADlib/commit/2d091b9d16d33cf8b8751b2a436019c9032422a3 "show commit") [C.P.](# "Chris Palmer") Added a constructor function for PCBs.
+PCB text can now specify a colour.
+Added `SOT23_6,` `TSOT23_8` and CAP1210 SMD packages.
+Added ESP-201 Wifi Module PCB.
+Added ESP12F Wifi module.
+Added `tiny_buck` converter PCB.
+Made 2p54joiner a bit longer.
+Fixed SOIC gullwing shape.
+Added Wifi antennas.
+Added Yunpen filtered IEC mains inlet.
+Added power jack socket.
+Added right angle option for LEDs.
+Added `gear_motors`.
+Added 686ZZ and 696ZZ ball bearings.
+Added two larger box section tubes.
+Added right angle option to `square_buttons`. Doesn't draw the frame yet.
+Added multiwatt11 package for L6203.
+Added ONS9143A 13A mains socket.
+Added radial electrolytic capacitors.
+Added `LDE10_20B` PSU module.
+Added `screw_tearsink()` to make horizontal countersunk holes.
+Can now have solid tracks on veroboard.
+Added `veroboard_base()` module to make an STL for a base with spacers.
+Corrected M6 spring washer thickness.
+Can now specify the height of a solder meniscus.
+`slot()` now has a `center` option.
+Added `button_6mm_7` with a taller button.
+Added default fa, fs and fn constants used for drawing vitamins.
+These can be set via `$default_fa` and `$default_fs` that can also be set
+by environment variables: `NOPSCADLIB_DEFAULT_FA` and `NOPSCADLIB_DEFAULT_FS`.
+
+### [v21.8.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.8.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.7.0...v21.8.0 "diff with v21.7.0")
+*   2023-07-28 [`74293b6`](https://github.com/nophead/NopSCADlib/commit/74293b6c22c51c326e2d541d1a68a1cd63659c2b "show commit") [C.](# "Chris") Added axial diodes, radial transistors, discs and modules.
+Verboard and perboard components get solder menisci added automatically.
+Radial leads now made by bezier curves rather than straights and arcs.
+
+### [v21.7.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.7.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.6.1...v21.7.0 "diff with v21.6.1")
+*   2023-07-22 [`523fc9e`](https://github.com/nophead/NopSCADlib/commit/523fc9e9a5c8a566bde2bfe8555d5f6dddd8f05b "show commit") [C.](# "Chris") Adafruit Feather 405 contributed by Chris Lott.
+
+#### [v21.6.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.6.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.6.0...v21.6.1 "diff with v21.6.0")
+*   2023-07-22 [`09d2ffb`](https://github.com/nophead/NopSCADlib/commit/09d2ffb126cf9d9ad2d68171583e11708227b704 "show commit") [C.](# "Chris") Typo in comment fixed.
+
+*   2023-07-22 [`3c37035`](https://github.com/nophead/NopSCADlib/commit/3c370359c838a48d85e25709bcbced61249c237d "show commit") [C.](# "Chris") Make front page `readme.md` labels lower case as GitHub seems have stopped working with uppercase.
+
+### [v21.6.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.6.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.5.1...v21.6.0 "diff with v21.5.1")
+*   2023-07-22 [`e3cde64`](https://github.com/nophead/NopSCADlib/commit/e3cde64b61b6abfc4a2883e8aa32b66346fde1c4 "show commit") [C.](# "Chris") `open_bearing_theta()` now derived from `open_bearing_width()`.
+
+*   2023-07-22 [`e61ce02`](https://github.com/nophead/NopSCADlib/commit/e61ce0241443fb2c1f0585953bd3f7383b217086 "show commit") [C.](# "Chris") Moved things around for better test images.
+
+*   2023-07-22 [`f8e1256`](https://github.com/nophead/NopSCADlib/commit/f8e125654ed60842d6ca7f33a91377d9cb5f1dc9 "show commit") [C.](# "Chris") Rendred the 3D difference.
+
+*   2023-07-22 [`62b1511`](https://github.com/nophead/NopSCADlib/commit/62b1511c82eacb5124302aed36a52fe0d8104385 "show commit") [C.](# "Chris") Removed 3D difference for speed.
+
+*   2023-06-27 [`84d98a1`](https://github.com/nophead/NopSCADlib/commit/84d98a1081d38c56d5b02645a99223b7616fcd70 "show commit") [J.R.](# "Jeroen Roos") Added SBR rails
+
+ * This change adds
+- SBR rails. For now only SBR16
+- The bearing block that goes with it (SBR16UU)
+- An 'open' linear bearing (LM16UUOP) that is used by the bearing block
+- A 28mm circlip that has a wider opening than then normal circlip.
+`(circlip_28iw)`
+
+#### [v21.5.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.5.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.5.0...v21.5.1 "diff with v21.5.0")
+*   2023-06-29 [`5899ffe`](https://github.com/nophead/NopSCADlib/commit/5899ffe88f7952108ce928a5a6188b4aad5044c5 "show commit") [C.](# "Chris") More typos in comments.
+
+*   2023-06-28 [`b051311`](https://github.com/nophead/NopSCADlib/commit/b05131145caf500cd9198b1e9b9fafc69506b50f "show commit") [C.](# "Chris") Comment typo.
+
+### [v21.5.0](https://github.com/nophead/NopSCADlib/releases/tag/v21.5.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v21.4.1...v21.5.0 "diff with v21.4.1")
+*   2023-05-08 [`c3f3d62`](https://github.com/nophead/NopSCADlib/commit/c3f3d629b1ff79d40cc5ad3efcb33e940d6c8056 "show commit") [C.P.](# "Chris Palmer") Added PanelDue V3.
+
+*   2023-05-08 [`c7ba052`](https://github.com/nophead/NopSCADlib/commit/c7ba052ccf24d764aa6460d4559e92596c9e4cf4 "show commit") [C.P.](# "Chris Palmer") Added SMD QFP package.
+
+*   2023-05-08 [`c2c5f50`](https://github.com/nophead/NopSCADlib/commit/c2c5f509860b909ca8fca5ffcc65dbef2f7177c5 "show commit") [C.P.](# "Chris Palmer") Can now used `smd_res()` to draw chokes.
+
+*   2023-05-08 [`d0ae8ca`](https://github.com/nophead/NopSCADlib/commit/d0ae8ca216108f53c9b8e60896ea9b59b845b7e0 "show commit") [C.P.](# "Chris Palmer") Added the ability to have more than one grid on a PCB.
+
+*   2023-05-08 [`e81dcfd`](https://github.com/nophead/NopSCADlib/commit/e81dcfdbd8163ce8e2db450f3a20c296c21327a8 "show commit") [C.P.](# "Chris Palmer") Added right angle option to box headers.
+
+#### [v21.4.1](https://github.com/nophead/NopSCADlib/releases/tag/v21.4.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v21.4.0...v21.4.1 "diff with v21.4.0")
+*   2023-05-08 [`06a286d`](https://github.com/nophead/NopSCADlib/commit/06a286dc989e9cc8cf7918049cd16a862b1a9b94 "show commit") [C.P.](# "Chris Palmer") 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 [`f5496c3`](https://github.com/nophead/NopSCADlib/commit/f5496c373a1ab8ae47d07cc0a52d76e4299876cc "show commit") [C.P.](# "Chris Palmer") Fixed typo in `smd_diode(DO214AC)` package name.
+
+### [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.
+
 ### [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.
 
@@ -44,7 +314,7 @@ This changelog is generated by `changelog.py` using manually added semantic vers
 *   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.
+*   2023-01-24 [`543cdb4`](https://github.com/nophead/NopSCADlib/commit/543cdb4e01d38308a06d4368ebabadb85c696567 "show commit") [C.P.](# "Chris Palmer") Increased 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.
@@ -79,8 +349,6 @@ Client code now calls `dxf()` so that the generated files can be used to speed u
 
  * 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.
 
@@ -461,7 +729,7 @@ veroboard track cuts made slightly bigger.
 
 *   2021-10-01 [`042d809`](https://github.com/nophead/NopSCADlib/commit/042d809ed056ba55c32f1d850b81dcf559fe9134 "show commit") [C.P.](# "Chris Palmer") Resistor and thermistor wires made more round.
 
-*   2021-10-01 [`3864839`](https://github.com/nophead/NopSCADlib/commit/3864839e521eb64189cba8453ea8835d6ffadd75 "show commit") [C.P.](# "Chris Palmer") Fixed encoder breakout descripion typo.
+*   2021-10-01 [`3864839`](https://github.com/nophead/NopSCADlib/commit/3864839e521eb64189cba8453ea8835d6ffadd75 "show commit") [C.P.](# "Chris Palmer") Fixed encoder breakout description typo.
 
 *   2021-10-01 [`2ba2c2c`](https://github.com/nophead/NopSCADlib/commit/2ba2c2c115d4ab6c2371c662a3e54d7c77aa7785 "show commit") [C.P.](# "Chris Palmer") Removed some unused dependencies.
 
@@ -480,9 +748,9 @@ Lead length removed from TO220 and TO247 vitamin string.
 Mainly text spacing changes.
 
 *   2021-09-27 [`9b5ec6a`](https://github.com/nophead/NopSCADlib/commit/9b5ec6af1aba313df6812a5313470ebb7e8fbdd7 "show commit") [C.P.](# "Chris Palmer") Fixed new `rounded_polygon` to work with last OpenSCAD release.
-Trainling commas in `let()`.
+Trailing commas in `let()`.
 
-*   2021-09-27 [`50958b0`](https://github.com/nophead/NopSCADlib/commit/50958b064d5a6d5ca3fd6525a8c3d3a2c5b20199 "show commit") [C.P.](# "Chris Palmer") Added `$show_plugs` to show crude reprentations of housings on `pin_headers` and Molex KK headers.
+*   2021-09-27 [`50958b0`](https://github.com/nophead/NopSCADlib/commit/50958b064d5a6d5ca3fd6525a8c3d3a2c5b20199 "show commit") [C.P.](# "Chris Palmer") Added `$show_plugs` to show crude representations of housings on `pin_headers` and Molex KK headers.
 
 *   2021-09-27 [`c37373c`](https://github.com/nophead/NopSCADlib/commit/c37373c920d3b438895ef535b0c06d0d00675609 "show commit") [C.P.](# "Chris Palmer") Added `TO247()` and `TO247_size()` to `component.scad`.
 
@@ -823,7 +1091,7 @@ Changelog updated.
 
 *   2021-03-06 [`b83e567`](https://github.com/nophead/NopSCADlib/commit/b83e56713fbde2ac25e9750c369ae9cec4d67913 "show commit") [M.B.](# "Martin Budden") Reordered openscad command line parameters.
 
-*   2021-03-04 [`da4f9fb`](https://github.com/nophead/NopSCADlib/commit/da4f9fbdc31d2ceaa853c2fa0270e6961fde28b9 "show commit") [C.P.](# "Chris Palmer") Typo in `changlog.py` doc string.
+*   2021-03-04 [`da4f9fb`](https://github.com/nophead/NopSCADlib/commit/da4f9fbdc31d2ceaa853c2fa0270e6961fde28b9 "show commit") [C.P.](# "Chris Palmer") Typo in `changelog.py` doc string.
 
 *   2021-03-03 [`614e5f3`](https://github.com/nophead/NopSCADlib/commit/614e5f3a72db309a3dee996d7241317556883e8d "show commit") [C.P.](# "Chris Palmer") Issues in the changelog now link to to the issue.
 
@@ -1006,7 +1274,7 @@ Smaller PCBs closer together to make space.
 *   2021-01-15 [`7f9122a`](https://github.com/nophead/NopSCADlib/commit/7f9122ae662ab0bd660e5c2f5ab6c507797030da "show commit") [C.P.](# "Chris Palmer") Added `--hardwarnings` to `openscad.py`
 
 ### [v10.33.0](https://github.com/nophead/NopSCADlib/releases/tag/v10.33.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v10.32.0...v10.33.0 "diff with v10.32.0")
-*   2021-01-15 [`93b260b`](https://github.com/nophead/NopSCADlib/commit/93b260b7b9a016e2afe1ab7df22f5c0c8c906708 "show commit") [C.P.](# "Chris Palmer") Added `screw_length()` to calculuate screw lengths includin washers, inserts and nuts.
+*   2021-01-15 [`93b260b`](https://github.com/nophead/NopSCADlib/commit/93b260b7b9a016e2afe1ab7df22f5c0c8c906708 "show commit") [C.P.](# "Chris Palmer") Added `screw_length()` to calculate screw lengths includin washers, inserts and nuts.
 
 ### [v10.32.0](https://github.com/nophead/NopSCADlib/releases/tag/v10.32.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v10.31.1...v10.32.0 "diff with v10.31.1")
 *   2021-01-13 [`8fea8f4`](https://github.com/nophead/NopSCADlib/commit/8fea8f437b4c4efe1aecf24cf8ddb6c8f006cad2 "show commit") [C.P.](# "Chris Palmer") Updated images and readme for green terminals.
@@ -1142,7 +1410,7 @@ Updated pics and readme.
 *   2020-12-28 [`f6f4fcc`](https://github.com/nophead/NopSCADlib/commit/f6f4fcc7e84e40669446708e2352ea68c49b7961 "show commit") [M.B.](# "Martin Budden") Added `M5_cs_cap` screw
 
 #### [v10.21.1](https://github.com/nophead/NopSCADlib/releases/tag/v10.21.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v10.21.0...v10.21.1 "diff with v10.21.0")
-*   2020-12-28 [`ba586b3`](https://github.com/nophead/NopSCADlib/commit/ba586b368582db163af143ebb60afed270f77b1c "show commit") [C.P.](# "Chris Palmer") Example images update to match new contersink screws and teardrops.
+*   2020-12-28 [`ba586b3`](https://github.com/nophead/NopSCADlib/commit/ba586b368582db163af143ebb60afed270f77b1c "show commit") [C.P.](# "Chris Palmer") Example images update to match new countersink screws and teardrops.
 
 ### [v10.21.0](https://github.com/nophead/NopSCADlib/releases/tag/v10.21.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v10.20.1...v10.21.0 "diff with v10.20.1")
 *   2020-12-28 [`8d22940`](https://github.com/nophead/NopSCADlib/commit/8d22940506df525ac52ef6f8a00ea03661f3b682 "show commit") [C.P.](# "Chris Palmer") Project blurb can now be split with into sections with markdown horizontal rules
@@ -1364,7 +1632,7 @@ Updated images and readme.
 
 *   2020-11-13 [`0c9ae8d`](https://github.com/nophead/NopSCADlib/commit/0c9ae8d60c96d8c5b16adfce98081adc8e20b001 "show commit") [C.P.](# "Chris Palmer") PCBs now drawn before components so that transparent LEDs draw correctly.
 
-*   2020-11-12 [`9a0bad4`](https://github.com/nophead/NopSCADlib/commit/9a0bad4e61acbd0ae27ef5c2d324d88deb7ee672 "show commit") [C.P.](# "Chris Palmer") Made stepper motor encap paramatric.
+*   2020-11-12 [`9a0bad4`](https://github.com/nophead/NopSCADlib/commit/9a0bad4e61acbd0ae27ef5c2d324d88deb7ee672 "show commit") [C.P.](# "Chris Palmer") Made stepper motor encap parametric.
 Made connector position based on encap height and added PCB.
 
 *   2020-11-12 [`9004781`](https://github.com/nophead/NopSCADlib/commit/90047815b0189c628c96807785d0d93a4895d411 "show commit") [C.P.](# "Chris Palmer") Added JST PH connectors.
@@ -1420,7 +1688,7 @@ Reverted the jst header pin position change.
 
 *   2020-09-20 [`933fea6`](https://github.com/nophead/NopSCADlib/commit/933fea687c54d7d8ec48fe92aae12ffca0666789 "show commit") [C.P.](# "Chris Palmer") Removed debug code
 
-*   2020-09-19 [`a7803b1`](https://github.com/nophead/NopSCADlib/commit/a7803b1efbf92c5e27f3171d7e2a92634fa2d84f "show commit") [C.P.](# "Chris Palmer") Improved numerical accuarcy of catenary calculations.
+*   2020-09-19 [`a7803b1`](https://github.com/nophead/NopSCADlib/commit/a7803b1efbf92c5e27f3171d7e2a92634fa2d84f "show commit") [C.P.](# "Chris Palmer") Improved numerical accuracy of catenary calculations.
 
 ### [v9.7.0](https://github.com/nophead/NopSCADlib/releases/tag/v9.7.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v9.6.1...v9.7.0 "diff with v9.6.1")
 *   2020-09-19 [`1255e71`](https://github.com/nophead/NopSCADlib/commit/1255e712719ce66fd3b231e5c212ea69b0bb9f1c "show commit") [C.P.](# "Chris Palmer") Added catenary curves.
@@ -1493,7 +1761,7 @@ Reduced J-Head inset.
 Removed J-Head MK4.
 
 ### [v9.2.0](https://github.com/nophead/NopSCADlib/releases/tag/v9.2.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v9.1.1...v9.2.0 "diff with v9.1.1")
-*   2020-08-13 [`2419d50`](https://github.com/nophead/NopSCADlib/commit/2419d5064182d63634183a5762c995d0bdfacf0a "show commit") [C.P.](# "Chris Palmer") Added more PTFE tube sizes and amde them whiter.
+*   2020-08-13 [`2419d50`](https://github.com/nophead/NopSCADlib/commit/2419d5064182d63634183a5762c995d0bdfacf0a "show commit") [C.P.](# "Chris Palmer") Added more PTFE tube sizes and made them whiter.
 
 *   2020-08-13 [`02211c2`](https://github.com/nophead/NopSCADlib/commit/02211c20348ef4f134c0d3c734a5d922fe9a9a3c "show commit") [C.P.](# "Chris Palmer") Added `tubing_or()` and `center` option.
 
@@ -2028,7 +2296,7 @@ already included by other vitamins.
 
 *   2020-02-24 [`065ec0a`](https://github.com/nophead/NopSCADlib/commit/065ec0a430da6c62cbd6d06b3de822e8a6751425 "show commit") [C.P.](# "Chris Palmer") Corrected nut placement
 
-*   2020-02-24 [`e7eea05`](https://github.com/nophead/NopSCADlib/commit/e7eea0520c7e4bd20e505084d7c17a64a915ef75 "show commit") [C.P.](# "Chris Palmer") T nut thickness no longer includes the stem to simplyfy placement and screw
+*   2020-02-24 [`e7eea05`](https://github.com/nophead/NopSCADlib/commit/e7eea0520c7e4bd20e505084d7c17a64a915ef75 "show commit") [C.P.](# "Chris Palmer") T nut thickness no longer includes the stem to simplify placement and screw
 length calculations.
 
 *   2020-02-24 [`5cb994b`](https://github.com/nophead/NopSCADlib/commit/5cb994b58b204a9f59d17001e4061aa5f60328bc "show commit") [C.P.](# "Chris Palmer") Retabulated nut table
@@ -2248,7 +2516,7 @@ Both added to the insert test.
 
 *   2019-08-18 [`e35fb69`](https://github.com/nophead/NopSCADlib/commit/e35fb695a21a42216b7f5b58c12b6bc5d3a43eff "show commit") [C.P.](# "Chris Palmer") Ziptie width added to BOM description.
 
-*   2019-08-18 [`61bec65`](https://github.com/nophead/NopSCADlib/commit/61bec656d7d9328a6eb90ca003d5ae5888e5a18c "show commit") [C.P.](# "Chris Palmer") Fixed box header BOM descripion.
+*   2019-08-18 [`61bec65`](https://github.com/nophead/NopSCADlib/commit/61bec656d7d9328a6eb90ca003d5ae5888e5a18c "show commit") [C.P.](# "Chris Palmer") Fixed box header BOM description.
 
 *   2019-08-18 [`854adab`](https://github.com/nophead/NopSCADlib/commit/854adab6650e7617588e2da821cd91fa97657eaa "show commit") [C.P.](# "Chris Palmer") Fix for Python 2
 

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.
@@ -30,7 +30,7 @@ The `NopSCADlib/scripts` directory needs to be added to the executable search pa
 
 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.
+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 2 minutes.
 
 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`
 for local preview.

examples/EnviroPlus/bom/bom.csv

@@ -1,6 +1,6 @@
 'Micro SD card',  1
 'Fan 17mm x 8mm',  1
-'Heatfit insert M2',  4
+'Heatfit insert M2 x 4mm',  4
 'Nut M2.5 x 2.2mm nyloc',  4
 'Enviro+',  1
 'Raspberry Pi Zero',  1
@@ -13,7 +13,7 @@
 'SMD capacitor 1206 10uF',  1
 'SMD resistor 0805 3K3 0.125W',  1
 'SOT223 package FZT851',  1
-'Veroboard 6 holes x 6strips',  1
+'Veroboard 6 holes x 6 strips',  1
 'Washer  M2 x 5mm x 0.3mm',  4
 'Washer  M2.5 x 5.9mm x 0.5mm',  4
 'Washer  M3 x 7mm x 0.5mm',  3

examples/EnviroPlus/bom/bom.json

@@ -49,13 +49,13 @@
     },
     {
         "name": "fan_controller_assembly",
-        "big": null,
+        "big": true,
         "ngb": false,
         "zoomed": 0,
         "count": 1,
         "assemblies": {},
         "vitamins": {
-            "veroboard(fan_vb): Veroboard 6 holes x 6strips": {
+            "veroboard(fan_vb): Veroboard 6 holes x 6 strips": {
                 "count": 1
             },
             "wire_link(0.8, 10.16, tail = 2.5): Wire link 0.8mm x 0.4\"": {
@@ -102,7 +102,7 @@
         "count": 1,
         "assemblies": {},
         "vitamins": {
-            "insert(F1BM2): Heatfit insert M2": {
+            "insert(F1BM2): Heatfit insert M2 x 4mm": {
                 "count": 4
             },
             "washer(M3_washer): Washer  M3 x 7mm x 0.5mm": {

examples/EnviroPlus/bom/bom.txt

@@ -15,7 +15,7 @@ Vitamins:
  i  e  k  e  o  e  r  n
  1|  |  |  |  |  |  |  |  1 Micro SD card
   |  | 1|  |  |  |  |  |  1 Fan 17mm x 8mm
-  |  |  | 4|  |  |  |  |  4 Heatfit insert M2
+  |  |  | 4|  |  |  |  |  4 Heatfit insert M2 x 4mm
   |  |  |  |  | 4|  |  |  4 Nut M2.5 x 2.2mm nyloc
   |  |  |  | 1|  |  |  |  1 Enviro+
  1|  |  |  |  |  |  |  |  1 Raspberry Pi Zero
@@ -28,7 +28,7 @@ Vitamins:
   |  |  |  |  |  | 1|  |  1 SMD capacitor 1206 10uF
   |  |  |  |  |  | 1|  |  1 SMD resistor 0805 3K3 0.125W
   |  |  |  |  |  | 1|  |  1 SOT223 package FZT851
-  |  |  |  |  |  | 1|  |  1 Veroboard 6 holes x 6strips
+  |  |  |  |  |  | 1|  |  1 Veroboard 6 holes x 6 strips
   |  |  |  |  |  |  | 4|  4 Washer  M2 x 5mm x 0.3mm
   |  |  |  |  | 4|  |  |  4 Washer  M2.5 x 5.9mm x 0.5mm
   |  |  | 3|  |  |  |  |  3 Washer  M3 x 7mm x 0.5mm

examples/EnviroPlus/bom/case_assembly.txt

@@ -1,6 +1,6 @@
 case_assembly:
 Vitamins:
-  4 Heatfit insert M2
+  4 Heatfit insert M2 x 4mm
   3 Screw M3 pan x  6mm
   3 Washer  M3 x 7mm x 0.5mm
 

examples/EnviroPlus/bom/fan_controller_assembly.txt

@@ -3,6 +3,6 @@ Vitamins:
   1 SMD capacitor 1206 10uF
   1 SMD resistor 0805 3K3 0.125W
   1 SOT223 package FZT851
-  1 Veroboard 6 holes x 6strips
+  1 Veroboard 6 holes x 6 strips
   3 Wire link 0.8mm x 6.5mm
   1 Wire link 0.8mm x 0.4"

examples/EnviroPlus/readme.md

@@ -29,7 +29,7 @@ Environmental monitor using Enviro+ sensor board and a Raspberry Pi Zero.
 |  |  |  |  |  |  |  |  | | **Vitamins** |
 |   .  |   .  |   .  |   1  |   .  |   .  |   .  |   .  |    1  |    Enviro+ |
 |   1  |   .  |   .  |   .  |   .  |   .  |   .  |   .  |    1  |    Fan 17mm x 8mm |
-|   .  |   .  |   .  |   .  |   4  |   .  |   .  |   .  |    4  |    Heatfit insert M2 |
+|   .  |   .  |   .  |   .  |   4  |   .  |   .  |   .  |    4  |    Heatfit insert M2 x 4mm |
 |   .  |   1  |   .  |   .  |   .  |   .  |   .  |   .  |    1  |    Micro SD card |
 |   .  |   .  |   .  |   .  |   .  |   4  |   .  |   .  |    4  |    Nut M2.5 x 2.2mm nyloc |
 |   1  |   .  |   .  |   .  |   .  |   .  |   .  |   .  |    1  |    PMS5003 particle detector |
@@ -42,7 +42,7 @@ Environmental monitor using Enviro+ sensor board and a Raspberry Pi Zero.
 |   .  |   .  |   .  |   .  |   .  |   .  |   2  |   .  |    2  |    Screw M2.5 pan x  6.4mm |
 |   .  |   .  |   .  |   .  |   .  |   4  |   .  |   .  |    4  |    Screw M2.5 pan x  8mm |
 |   .  |   .  |   .  |   .  |   3  |   .  |   .  |   .  |    3  |    Screw M3 pan x  6mm |
-|   .  |   .  |   1  |   .  |   .  |   .  |   .  |   .  |    1  |    Veroboard 6 holes x 6strips |
+|   .  |   .  |   1  |   .  |   .  |   .  |   .  |   .  |    1  |    Veroboard 6 holes x 6 strips |
 |   .  |   .  |   .  |   .  |   .  |   .  |   .  |   4  |    4  |    Washer  M2 x 5mm x 0.3mm |
 |   .  |   .  |   .  |   .  |   .  |   4  |   .  |   .  |    4  |    Washer  M2.5 x 5.9mm x 0.5mm |
 |   .  |   .  |   .  |   .  |   3  |   .  |   .  |   .  |    3  |    Washer  M3 x 7mm x 0.5mm |
@@ -121,13 +121,13 @@ Environmental monitor using Enviro+ sensor board and a Raspberry Pi Zero.
 |1| SMD capacitor 1206 10uF|
 |1| SMD resistor 0805 3K3 0.125W|
 |1| SOT223 package FZT851|
-|1| Veroboard 6 holes x 6strips|
+|1| Veroboard 6 holes x 6 strips|
 |1| Wire link 0.8mm x 0.4"|
 |3| Wire link 0.8mm x 6.5mm|
 
 
 ### Assembly instructions
-![fan_controller_assembly](assemblies/fan_controller_assembly_tn.png)
+![fan_controller_assembly](assemblies/fan_controller_assembly.png)
 
 The fan controller is a single transistor wired as a Miller integrator that effectively multiplies the capacitor value by the gain of the transistor.
 It converts the PWM signal on GPI4 to a stead DC voltage so that the fan doesn't whine, or stutter.
@@ -145,7 +145,7 @@ It converts the PWM signal on GPI4 to a stead DC voltage so that the fan doesn't
 ![SMT](docs/smt.jpg)
 
 
-![fan_controller_assembled](assemblies/fan_controller_assembled_tn.png)
+![fan_controller_assembled](assemblies/fan_controller_assembled.png)
 
 <span></span>
 [Top](#TOP)
@@ -168,11 +168,11 @@ It converts the PWM signal on GPI4 to a stead DC voltage so that the fan doesn't
 
 
 ### Assembly instructions
-![enviro_assembly](assemblies/enviro_assembly_tn.png)
+![enviro_assembly](assemblies/enviro_assembly.png)
 
 * Solder the fan_controller to the Enviro+ expansion connector at the 5V, GND and #4 pins.
 
-![enviro_assembled](assemblies/enviro_assembled_tn.png)
+![enviro_assembled](assemblies/enviro_assembled.png)
 
 <span></span>
 [Top](#TOP)
@@ -183,7 +183,7 @@ It converts the PWM signal on GPI4 to a stead DC voltage so that the fan doesn't
 ### Vitamins
 |Qty|Description|
 |---:|:----------|
-|4| Heatfit insert M2|
+|4| Heatfit insert M2 x 4mm|
 |3| Screw M3 pan x  6mm|
 |3| Washer  M3 x 7mm x 0.5mm|
 

examples/EnviroPlus/scad/fan_controller.scad

@@ -7,7 +7,6 @@
 //
 // Top level model
 //
-
 include <NopSCADlib/core.scad>
 use <NopSCADlib/vitamins/veroboard.scad>
 include <NopSCADlib/vitamins/smds.scad>
@@ -19,10 +18,9 @@ fan_vb = vero("fan_vb", "fan_controller", 6, 6, breaks = [[2, 1], [2 + eps, 5]],
         [0, 1,     0, "link", 0, 4, undef, 2.5],
         [0, 0,     0, "link", 0, 4, undef, 2.5],
         [2, 5,     0, "-smd_res", RES0805, "3K3"],
-        [4, 4.7,  90, "-smd_cap", CAP1206, 1.2, "10uF"],
+        [4, 4.5,  90, "-smd_cap", CAP1206, 1.2, "10uF"],
         [2, 2.5, 180, "-smd_sot", SOT223, "FZT851"],
-    ],
-    joints = [[5, 1], [5, 5], [0, [0, 1, 5]]]
+    ]
  );
 
 //! The fan controller is a single transistor wired as a Miller integrator that effectively multiplies the capacitor value by the gain of the transistor.
@@ -40,6 +38,6 @@ fan_vb = vero("fan_vb", "fan_controller", 6, 6, breaks = [[2, 1], [2 + eps, 5]],
 //!
 //! ![SMT](docs/smt.jpg)
 //!
-module fan_controller_assembly() rotate(90) vflip(!exploded()) veroboard_assembly(fan_vb, -vero_thickness(fan_vb) - 1.4, 0);
+module fan_controller_assembly() rotate(90) vflip() veroboard_fastened_assembly(fan_vb, -vero_thickness(fan_vb) - 1.4, 0);
 
 fan_controller_assembly();

examples/EnviroPlus/scad/main.scad

@@ -25,6 +25,7 @@ include <NopSCADlib/vitamins/fans.scad>
 use <NopSCADlib/vitamins/insert.scad>
 use <NopSCADlib/vitamins/veroboard.scad>
 use <NopSCADlib/utils/round.scad>
+use <NopSCADlib/utils/pcb_utils.scad>
 use <NopSCADlib/printed/foot.scad>
 use <NopSCADlib/printed/printed_box.scad>
 use <fan_controller.scad>
@@ -402,7 +403,7 @@ assembly("enviro") {
     if(!exploded())
         for(x = [8, 7, 3])
             pcb_grid(pcb, x, 0, 0.05)
-                solder_meniscus(pcb, 0.39, 1);
+                solder_meniscus(0.39, 1);
 }
 
 //! * Screw the Enviro+ PCB to the front of the case using M2.5 x 8mm pan screws with washer and nuts on the inside.

examples/MainsBreakOutBox/bom/base_assembly.txt

@@ -1,6 +1,6 @@
 base_assembly:
 Vitamins:
-  2 Heatfit insert M3
+  2 Heatfit insert M3 x 5.8mm
 
 Printed:
   1 socket_box.stl

examples/MainsBreakOutBox/bom/bom.csv

@@ -3,7 +3,7 @@
 'Wire brown 30/0.25mm strands, length 150mm - not shown',  2
 'Wire green & yellow 30/0.25mm strands, length 150mm - not shown',  2
 'IEC inlet for ATX',  1
-'Heatfit insert M3',  2
+'Heatfit insert M3 x 5.8mm',  2
 '4mm shielded jack socket blue',  2
 '4mm shielded jack socket brown',  1
 '4mm shielded jack socket green',  2

examples/MainsBreakOutBox/bom/bom.json

@@ -7,7 +7,7 @@
         "count": 1,
         "assemblies": {},
         "vitamins": {
-            "insert(F1BM3): Heatfit insert M3": {
+            "insert(F1BM3): Heatfit insert M3 x 5.8mm": {
                 "count": 2
             }
         },

examples/MainsBreakOutBox/bom/bom.txt

@@ -12,7 +12,7 @@ Vitamins:
   |  |  | 2|  2 Wire brown 30/0.25mm strands, length 150mm - not shown
   |  | 1| 1|  2 Wire green & yellow 30/0.25mm strands, length 150mm - not shown
   |  |  | 1|  1 IEC inlet for ATX
- 2|  |  |  |  2 Heatfit insert M3
+ 2|  |  |  |  2 Heatfit insert M3 x 5.8mm
   |  | 2|  |  2 4mm shielded jack socket blue
   |  | 1|  |  1 4mm shielded jack socket brown
   |  | 2|  |  2 4mm shielded jack socket green

examples/MainsBreakOutBox/readme.md

@@ -38,7 +38,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 |   .  |   .  |   .  |   1  |    1  |    4mm shielded jack socket brown |
 |   .  |   .  |   .  |   2  |    2  |    4mm shielded jack socket green |
 |   .  |   .  |   .  |   3  |    3  |    Ferrule for 1.5mm^2 wire - not shown |
-|   2  |   .  |   .  |   .  |    2  |    Heatfit insert M3 |
+|   2  |   .  |   .  |   .  |    2  |    Heatfit insert M3 x 5.8mm |
 |   .  |   .  |   3  |   5  |    8  |    Heatshrink sleeving ID 3.2mm x 15mm - not shown |
 |   .  |   .  |   1  |   .  |    1  |    IEC inlet for ATX |
 |   .  |   .  |   .  |   1  |    1  |    Mains socket 13A |
@@ -65,7 +65,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Vitamins
 |Qty|Description|
 |---:|:----------|
-|2| Heatfit insert M3|
+|2| Heatfit insert M3 x 5.8mm|
 
 
 ### 3D Printed parts

gallery/readme.md

@@ -4,6 +4,18 @@ Arduino thermostat to control a beer fridge to use it as an environmental chambe
 
 ![](ArduinoThermostat.png)
 
+## Blinder
+
+Tasmota roller blind open / close mechanism
+
+
+![](Blinder.png)
+
+## ClockSetter
+An IOT device for programming UK wireless clocks that are out of reach of the UK MSF time signal but are on UK time, e.g. in Tenerife.
+
+![](ClockSetter.png)
+
 ## EnviroPlus
 Environmental monitor using Enviro+ sensor board and a Raspberry Pi Zero.
 
@@ -19,7 +31,6 @@ Current state of HydraRaptor after being modified for laser engraving.
 
 ![](HydraBot.png)
 
-
 ## IOT 50V PSU
 WiFi controllable PSU
 
@@ -30,6 +41,11 @@ WiFi controllable programmable load
 
 ![](IOT_LOAD.png)
 
+## LED Box
+Indicator LEDs used to debug a Bosch diswasher problem.
+
+![](LED_box.png)
+
 ## Lab ATX PSU
 Bench power supply built around an ATX PSU.
 
@@ -70,16 +86,36 @@ Mains isolated and variable supply with metering.
 
 
 
+## MultiSwitch
+Multi Tasmota switch to replace 5 Sonoffs
+
+![](MultiSwitch.png)
+
+## MultiSwitch2
+Multi Tasmota switch to replace 5 Sonoffs
+
+![](MultiSwitch2.png)
+
 ## PSU Cover
 A base and shroud to make PSU safe to sit on a desk
 
 ![](PSU_cover.png)
 
+## PSU Tube
+12V power supply made in an aluminium tube for fire safety
+
+![](PSU_tube.png)
+
 ## PotBox
 Potentiometer box with course and fine controls and three 4mm binding posts
 
 ![](PotBox.png)
 
+## PowerBank
+LION powerbank with e-paper charge status display
+
+![](PowerBank.png)
+
 ## SunBot
 A solar tracker to keep a solar panel pointing at the sun.
 

global_defs.scad

@@ -41,16 +41,23 @@ pp1_colour      = is_undef($pp1_colour)      ? rr_green     : $pp1_colour;// pri
 pp2_colour      = is_undef($pp2_colour)      ? crimson      : $pp2_colour;// printed part colour 2
 pp3_colour      = is_undef($pp3_colour)      ? "SteelBlue"  : $pp3_colour;// printed part colour 3
 pp4_colour      = is_undef($pp4_colour)      ? "darkorange" : $pp4_colour;// printed part colour 4
-
+manifold        = is_undef($manifold)        ? false  : $manifold;        // Manifold library being used instead of cgal
 
 // Minimum wall is about two filaments wide but we extrude it closer to get better bonding
 squeezed_wall = $preview ? 2 * extrusion_width - layer_height * (1 - PI / 4)
                          : extrusion_width - layer_height / 2 + nozzle / 2 + extrusion_width / 2;
 
-inf = 1e10;      // very big
+inf = 1e10;       // very big
+big = manifold ? 1e3 : inf;     // Not too big for manifold
 eps = 1/128;     // small fudge factor to stop CSG barfing on coincident faces.
-$fa = 6;
-$fs = extrusion_width / 2;
+
+fa = is_undef($vitamin_fa) ? 6    : $vitamin_fa;          // Used for drawing vitamins, rather than printing.
+fs = is_undef($vitamin_fs) ? 0.25 : $vitamin_fs;
+fn = 32;
+
+$fa = $fa == 12 ? 6 : $fa;          // Defaults for printing
+$fs = $fs == 2 ? extrusion_width / 2 : $fs;
+
 
 // Some additional named colours
 silver           = [0.75, 0.75, 0.75];

lib.scad

@@ -25,19 +25,20 @@ include <core.scad>
 include <vitamins/psus.scad>
 include <vitamins/pcbs.scad>
 
+include <vitamins/antennas.scad>
 include <vitamins/batteries.scad>
 include <vitamins/bearing_blocks.scad>
 include <vitamins/blowers.scad>
 include <vitamins/bldc_motors.scad>
 include <vitamins/box_sections.scad>
 include <vitamins/bulldogs.scad>
-include <vitamins/buttons.scad>
 include <vitamins/cameras.scad>
 include <vitamins/components.scad>
 include <vitamins/displays.scad>
 include <vitamins/extrusions.scad>
 include <vitamins/extrusion_brackets.scad>
 include <vitamins/fastons.scad>
+include <vitamins/gear_motors.scad>
 include <vitamins/geared_steppers.scad>
 include <vitamins/hot_ends.scad>
 include <vitamins/inserts.scad>
@@ -49,6 +50,7 @@ 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>
@@ -98,5 +100,7 @@ use <utils/rounded_triangle.scad>
 use <utils/layout.scad>
 use <utils/round.scad>
 use <utils/offset.scad>
+use <utils/pcb_utils.scad>
 use <utils/sector.scad>
 use <utils/thread.scad>
+use <vitamins/photo_interrupter.scad>

libtest.scad

@@ -42,6 +42,7 @@
 include <lib.scad>
 
 use <tests/7_segments.scad>
+use <tests/antennas.scad>
 use <tests/ball_bearings.scad>
 use <tests/batteries.scad>
 use <tests/bearing_blocks.scad>
@@ -65,6 +66,7 @@ use <tests/extrusion_brackets.scad>
 use <tests/fans.scad>
 use <tests/fastons.scad>
 use <tests/fuseholder.scad>
+use <tests/gear_motors.scad>
 use <tests/geared_steppers.scad>
 use <tests/hot_ends.scad>
 use <tests/IECs.scad>
@@ -85,6 +87,7 @@ 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>
@@ -95,6 +98,7 @@ use <tests/rails.scad>
 use <tests/ring_terminals.scad>
 use <tests/rockers.scad>
 use <tests/rod.scad>
+use <tests/SBR_rails.scad>
 use <tests/screws.scad>
 use <tests/sealing_strip.scad>
 use <tests/servo_motors.scad>
@@ -108,6 +112,7 @@ use <tests/stepper_motors.scad>
 use <tests/Swiss_clips.scad>
 use <tests/toggles.scad>
 use <tests/transformers.scad>
+use <tests/ttracks.scad>
 use <tests/tubings.scad>
 use <tests/veroboard.scad>
 use <tests/washers.scad>
@@ -143,7 +148,7 @@ x1 = x0 + 110;
 x2 = x1 + 90;
 x3 = x2 + 130;
 x4 = x3 + 200;
-x5 = 850;
+x5 = 900;
 x6 = x5 + 150;
 
 cable_grommets_y = 0;
@@ -216,15 +221,12 @@ translate([950, box_y])
     box_test();
 
 
-translate([950, 1525])
-    rotate(-90)
-        bbox_test();
-
 inserts_y = 0;
 nuts_y = inserts_y + 20;
-washers_y = nuts_y + 120;
+washers_y = nuts_y + 140;
 screws_y = washers_y + 120;
-circlips_y = screws_y + 160;
+threaded_inserts_y = screws_y + 180;
+circlips_y = threaded_inserts_y + 30;
 springs_y = circlips_y + 20;
 o_rings_y = springs_y;
 sealing_strip_y = springs_y + 20;
@@ -232,8 +234,8 @@ tubings_y = sealing_strip_y + 20;
 pillars_y = tubings_y + 20;
 ball_bearings_y = pillars_y + 40;
 pulleys_y = ball_bearings_y + 40;
-leadnuts_y = pulleys_y + 60;
-linear_bearings_y = leadnuts_y + 50;
+leadnuts_y = pulleys_y + 35;
+linear_bearings_y = leadnuts_y + 65;
 steppers_y = linear_bearings_y + 110;
 sheets_y = steppers_y + 55;
 pcbs_y = sheets_y + 60;
@@ -242,6 +244,10 @@ fans_y = displays_y + 110;
 transformers_y = fans_y + 120;
 psus_y = transformers_y + 190;
 
+ttracks_y = pcbs_y + 150;
+translate([840, ttracks_y])
+    ttracks();
+
 translate([x0 + 35, inserts_y])
     inserts();
 
@@ -254,6 +260,9 @@ translate([x0, nuts_y])
 translate([x0, washers_y])
     washers();
 
+translate([x0, threaded_inserts_y])
+    threaded_inserts();
+
 translate([x0, screws_y])
     screws();
 
@@ -288,13 +297,18 @@ translate([x0 + 120, leadnuts_y])
     leadnuthousings();
 
 translate([x0, linear_bearings_y]) {
-    linear_bearings();
+    translate([0, -30])
+        linear_bearings();
+
     rods();
 }
 
 translate([x0, steppers_y])
     stepper_motors();
 
+translate([x0 + 400, steppers_y])
+    gear_motors();
+
 translate([x0, sheets_y])
     sheets();
 
@@ -396,26 +410,26 @@ blowers_y = ssrs_y + 60;
 hot_ends_y = blowers_y + 100;
 batteries_y = hot_ends_y + 55;
 panel_meters_y = batteries_y + 70;
-extrusions_y = panel_meters_y + 80;
+extrusions_y = panel_meters_y + 100;
 
 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();
 
@@ -428,6 +442,9 @@ translate([x3 + 60, modules_y])
 translate([x3 + 90, modules_y])
     modules();
 
+translate([x3 + 150, modules_y])
+    photo_interrupters();
+
 translate([x3, ssrs_y]) {
     ssrs();
 
@@ -449,28 +466,31 @@ translate([x2, panel_meters_y])
 translate([x2, extrusions_y])
     extrusions();
 
-translate([400, transformers_y])
+translate([370, transformers_y])
     transformers();
 
-translate([x4 + 50, transformers_y])
+translate([x4, transformers_y])
     no_explode() socket_boxes();
 
+translate([950, transformers_y + 110])
+    rotate(-90)
+        bbox_test();
 
 belts_y = 0;
 rails_y = belts_y + 200;
 extrusion_brackets_y = rails_y + 250;
 sk_brackets_y = extrusion_brackets_y + 80;
 kp_pillow_blocks_y = sk_brackets_y + 60;
-scs_bearing_blocks_y = kp_pillow_blocks_y + 60;
+bearing_blocks_y = kp_pillow_blocks_y + 60;
 box_sections_y = batteries_y;
-BLDC_y = scs_bearing_blocks_y + 120;
-pot_y = BLDC_y + 40;
-cable_strip_y = pot_y + 50;
+BLDC_y = bearing_blocks_y + 180;
+pot_y = bearing_blocks_y;
+cable_strip_y = sheets_y + 30;
 
 translate([0, transformers_y])
     servo_motors();
 
-translate([x4 + 200, belts_y + 58]) {
+translate([x4 + 200 + 16, belts_y + 58]) {
     belt_test();
 
     translate([0, 60])
@@ -480,12 +500,19 @@ translate([x4 + 200, belts_y + 58]) {
 translate([x4 + 175, belts_y, -20])
     drag_chains();
 
-translate([x4, rails_y + 130])
+translate([x4, rails_y + 130]) {
     rails();
 
+    translate([305, 0])
+        sbr_rails();
+}
+
 translate([x4, cable_strip_y])
     cable_strips();
 
+translate([x4 + 150, cable_strip_y])
+    antennas();
+
 translate([x4, kp_pillow_blocks_y])
     kp_pillow_blocks();
 
@@ -498,8 +525,8 @@ translate([x4, extrusion_brackets_y])
 translate([x1, swiss_clips_y + 50])
     shaft_couplings();
 
-translate([x4, scs_bearing_blocks_y])
-    scs_bearing_blocks();
+translate([x4, bearing_blocks_y])
+    bearing_blocks();
 
 translate([x4, BLDC_y])
     bldc_motors();

printed/box.scad

@@ -452,9 +452,10 @@ module box_screw_hole_positions(type) {
             children();
 }
 
-module box_base_blank(type) { //! Generates a 2D template for the base sheet
+module box_base_blank(type, sheet = false) { //! Generates a 2D template for the base sheet, `sheet` can be set to override the type
+    s = sheet ? sheet : box_base_sheet(type);
     difference() {
-        sheet_2D(box_base_sheet(type), box_width(type), box_depth(type), box_sheet_r(type));
+        sheet_2D(s, box_width(type), box_depth(type), box_sheet_r(type));
 
         box_screw_hole_positions(type)
             drill(screw_clearance_radius(box_screw(type)), 0);
@@ -493,7 +494,8 @@ module box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = un
         for(p = screw_positions)
             multmatrix(p)
                 translate_z(thickness)
-                    children();
+                    let($horizontal = true)
+                        children();
 
     r = box_boss_r(type);
     inset = box_intrusion(type) - r + (r + insert_boss_radius(insert, w) + bezel_clearance / 2) / sqrt(2);
@@ -502,10 +504,11 @@ module box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = un
             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();
+                        let($horizontal = false)
+                            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
+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, third child is 3D additions.
     w = is_undef(wall) ? box_wall(type) : wall;
     insert = box_shelf_insert(type);
     lip = 2 * insert_boss_radius(insert, w);
@@ -560,9 +563,13 @@ module box_shelf_bracket(type, screw_positions, wall = undef) { //! Generates a
                                     children(0);
                     }
 
-                hflip()
+                hflip() {
                     box_shelf_screw_positions(type, screw_positions, 0, w)
                         boss();
+
+                    if($children > 2)
+                        children(2);
+                }
             }
             if($children > 1)
                 hflip()
@@ -570,7 +577,7 @@ module box_shelf_bracket(type, screw_positions, wall = undef) { //! Generates a
 
             hflip()
                 box_shelf_screw_positions(type, screw_positions, 0, w)
-                    insert_hole(insert, counterbore = 1, horizontal = true);
+                    insert_hole(insert, counterbore = 1, horizontal = $horizontal);
         }
 }
 

printed/cable_clip.scad

@@ -18,100 +18,129 @@
 //
 
 //
-//! Cable clips to order. Can be for one or two cables of different sizes.
+//! Cable clips to order. Can be for one or two cables of different sizes. Can use an insert and a screw from below or a screw and nut either way up.
 //
 include <../core.scad>
 use <../vitamins/wire.scad>
 use <../utils/fillet.scad>
+use <../vitamins/insert.scad>
 
 wall = 2;
 
-function cable_clip_width(screw) = max(wall + 2 * screw_clearance_radius(screw) + wall, washer_diameter(screw_washer(screw))); //! Width given the `screw`.
-function cable_clip_height(cable) = cable_height(cable) + wall; //! Height given the `cable`.
-function cable_clip_extent(screw, cable) = screw_clearance_radius(screw) + wall + cable_width(cable) + wall; //! How far it extends from the screw.
-function cable_clip_offset(screw, cable) = screw_clearance_radius(screw) + wall + cable_width(cable) / 2; //! The offset of the cable from the screw
+function cable_clip_insert(screw, insert = true) = //! Insert type for clip, given screw.
+    is_list(insert) ? insert : insert ? screw_insert(screw, true) : false;
 
-module single_cable_clip(screw, cable, h = 0) {
-    screw_dia = 2 * screw_clearance_radius(screw);
-    height = cable_clip_width(screw);
-    depth = h ? h : cable_height(cable) + wall;
+function cable_clip_width(screw, insert = false) = //! Width given the `screw` and possibly insert.
+    let(insert = cable_clip_insert(screw, insert))
+        insert ? 2 * (insert_hole_radius(insert) + wall) :
+            max(wall + 2 * screw_clearance_radius(screw) + wall, washer_diameter(screw_washer(screw)));
+
+function cable_clip_height(cable, screw = false, insert = false) = //! Height given the `cable`.
+    let(insert = cable_clip_insert(screw, insert))
+        max(cable_height(cable) + wall, insert ? insert_hole_length(insert) + 1 : 0);
+
+function cable_clip_extent(screw, cable, insert = false) = cable_clip_width(screw, insert) / 2 + cable_width(cable) + wall; //! How far it extends from the screw.
+function cable_clip_offset(screw, cable, insert = false) = cable_clip_width(screw, insert) / 2 + cable_width(cable) / 2; //! The offset of the cable from the screw.
+
+module single_cable_clip(screw, cable, h = 0, insert = false) {
+    insert = cable_clip_insert(screw, insert);
+    height = cable_clip_width(screw, insert);
+    depth = h ? h : cable_clip_height(cable, screw, insert);
     w = cable_width(cable);
-    width = wall + w + wall + screw_dia + wall;
-    hole_x = wall + w + wall + screw_dia / 2;
+    width = wall + w + height;
+    hole_x = wall + w + height / 2;
     rad = min(wall + cable_wire_size(cable) / 2, depth / 2);
     r = extrusion_width - eps;
-    translate([-hole_x, 0]) difference() {
-        linear_extrude(height)
-            difference() {
-                hull() {
-                    rounded_square([width, 1], r, center = false);
-
-                    translate([width - 1, 0])
-                        rounded_square([1, depth], r, center = false);
-
-                    translate([rad, depth - rad])
-                        circle(r = rad);
-                }
-
-                translate([wall + cable_width(cable) / 2, 0]) {
+    translate([-hole_x, 0])
+        difference() {
+            linear_extrude(height)
+                difference() {
                     hull() {
-                        for(p = cable_bundle_positions(cable))
-                            translate(p)
-                                circle(d = cable_wire_size(cable));
+                        rounded_square([width, 1], r, center = false);
 
-                        square([w, eps], center = true);
+                        translate([width - 1, 0])
+                            rounded_square([1, depth], r, center = false);
+
+                        translate([rad, depth - rad])
+                            circle(r = rad);
+                    }
+
+                    translate([wall + cable_width(cable) / 2, 0]) {
+                        hull() {
+                            for(p = cable_bundle_positions(cable))
+                                translate(p)
+                                    circle(d = cable_wire_size(cable));
+
+                            square([w, eps], center = true);
+                        }
+                        for(side = [-1, 1])
+                            translate([side * w / 2, 0])
+                                hflip(side < 0)
+                                    fillet(r = r, h = 0);
                     }
-                    for(side = [-1, 1])
-                        translate([side * w / 2, 0])
-                            hflip(side < 0)
-                                fillet(r = r, h = 0);
                 }
-            }
 
-        translate([hole_x, depth / 2, height / 2])
-            rotate([90,0,0])
-                teardrop_plus(h = depth + 1, r = screw_dia / 2, center = true);
-    }
+            translate([hole_x, depth, height / 2])
+                rotate([90, 0, 0])
+                    if(insert)
+                        insert_hole(insert, 10, horizontal = true);
+                    else
+                        teardrop_plus(h = 2 * depth + 1, r = screw_clearance_radius(screw), center = true);
+        }
 }
 
 
-module double_cable_clip(screw, cable1, cable2) {
-    h = max(cable_clip_height(cable1), cable_clip_height(cable2));
+module double_cable_clip(screw, cable1, cable2, insert = false) {
+    h = max(cable_clip_height(cable1, screw, insert), cable_clip_height(cable2, screw, insert));
     union() {
-        single_cable_clip(screw, cable1, h);
+        single_cable_clip(screw, cable1, h, insert);
 
-        mirror([1,0,0]) single_cable_clip(screw, cable2, h);
+        mirror([1,0,0]) single_cable_clip(screw, cable2, h, insert);
     }
 }
 
-module cable_clip(screw, cable1, cable2 = 0) { //! Create the STL for a single cable or two cable clip
-    function clip_str(screw) = str("cable_clip_", screw_radius(screw) * 20);
+module cable_clip(screw, cable1, cable2 = 0, insert = false) { //! Create the STL for a single cable or two cable clip
+    function clip_str(screw) = str("cable_clip_", screw_radius(screw) * 20, insert ? "I" : "");
     function cable_str(cable) = str("_", cable_wires(cable), "_", round(cable_wire_size(cable) * 10));
 
     if(cable2) {
         stl(str(clip_str(screw), cable_str(cable1), cable_str(cable2)));
 
-        double_cable_clip(screw, cable1, cable2);
+        double_cable_clip(screw, cable1, cable2, insert);
     }
     else {
         stl(str(clip_str(screw), cable_str(cable1)));
 
-        single_cable_clip(screw, cable1);
+        single_cable_clip(screw, cable1, h = 0, insert = insert);
     }
 }
 
 
-module cable_clip_assembly(screw, thickness, cable1, cable2 = 0) { //! Cable clip with the fasteners
-    height = max(cable_clip_height(cable1), cable2 ? cable_clip_height(cable2) : 0);
+module cable_clip_assembly(screw, thickness, cable1, cable2 = 0, flip = false, insert = false) { //! Cable clip with the fasteners
+    flip = flip || insert;          // Screw must be below if using an insert
+    insert = cable_clip_insert(screw, insert);
+    height = max(cable_clip_height(cable1, screw, insert), cable2 ? cable_clip_height(cable2, screw, insert) : 0);
 
     stl_colour(pp1_colour) render()
-        translate([0, cable_clip_width(screw) / 2]) rotate([90, 0, 0])
-            cable_clip(screw, cable1, cable2);
+        translate([0, cable_clip_width(screw, insert) / 2])
+            rotate([90, 0, 0])
+                cable_clip(screw, cable1, cable2, insert);
 
+    nut = screw_nut(screw);
+    screw_len = screw_length(screw, height + thickness, 2, nyloc = !insert, insert = insert);
     translate_z(height)
-        screw_and_washer(screw, screw_length(screw, height + thickness, 2, nyloc = true));
+        if(flip)
+            if(insert)
+                insert(insert);
+            else
+                nut_and_washer(nut, true);
+        else
+            screw_and_washer(screw, screw_len);
 
     translate_z(-thickness)
         vflip()
-            nut_and_washer(screw_nut(screw), true);
+            if(flip)
+                screw_and_washer(screw, screw_len, insert);
+            else
+                nut_and_washer(nut, true);
 }

printed/camera_housing.scad

@@ -383,9 +383,3 @@ module camera_housing(cam) {
         rotate(90)
             camera_bracket(cam);
 }
-
-cam = rpi_camera_v2;
-if($preview)
-    camera_fastened_assembly(cam, 3);
-else
-    camera_housing(cam);

scripts/bom.py

@@ -104,14 +104,14 @@ class BOM:
 
     def add_part(self, s):
         args = []
-        match = re.match(r'^(.*?\.stl|.*?\.dxf)\((.*)\)$', s)                             #look for name.stl(...) or name.dxf(...)
+        match = re.match(r'^(.*?\.stl|.*?\.dxf|.*?\.svg)\((.*)\)$', s)                             #look for name.stl(...), name.dxf(...) or name.svg(...)
         if match:
             s = match.group(1)
             args = [match.group(2)]
         if s[-4:] == ".stl":
             parts = self.printed
         else:
-            if s[-4:] == ".dxf":
+            if s[-4:] == ".dxf" or s[-4:] == ".svg":
                 parts = self.routed
             else:
                 parts = self.vitamins
@@ -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:

scripts/changelog.py

@@ -80,9 +80,16 @@ def codify(word, url):
             return  '`' + word + '`'
     return word
 
+typos = [ # Typos that are ambiguous to codespell
+    ('cnc_bit+_r', 'cnc_bit_r'),
+    ('Udated',     'Updated'),
+    ('decription', 'description'),
+    ('Trainling',  'Trailing'),
+]
 
 def fixup_comment(comment, url):
-    comment = comment.replace('cnc_bit+_r', 'cnc_bit_r')
+    for typo in typos:
+        comment = comment.replace(typo[0], typo[1])
     """ markup code words and fix new paragraphs """
     result = ''
     word = ''
@@ -162,6 +169,9 @@ if __name__ == '__main__':
 
             # Print commits excluding merges
 
-            if not c.comment.startswith('Merge branch') and not c.comment.startswith('Merge pull') and not re.match(r'U..ated ch.*log.*', c.comment):
+            if not c.comment.startswith('Merge branch') \
+               and not c.comment.startswith('Merge pull') \
+               and not re.match(r'U.?.ated ch.*log.*', c.comment) \
+               and not re.match(r'Changelog updated.*', c.comment):
                 print('* %s [`%s`](%s "show commit") %s %s\n' % (c.date, c.hash[:7], url + '/commit/' + c.hash, initials(c.author), fixup_comment(c.comment, url)), file = file)
     do_cmd(('codespell -w -L od ' + filename).split())

scripts/deps.py

@@ -35,7 +35,7 @@ def read_deps(dname):
     for line in lines:
         if line.startswith('\t'):
             dep = line[1 : -1].rstrip(' \\').replace('\\ ', ' ')
-            if not os.path.basename(dep) in ['stl.scad', 'dxf.scad', 'svf.scad', 'png.scad', 'target.scad']:
+            if not os.path.basename(dep) in ['stl.scad', 'dxf.scad', 'svg.scad', 'png.scad', 'target.scad']:
                 deps.append(dep)
     return deps
 
@@ -63,5 +63,5 @@ def source_dirs(bom_dir):
         else:
             if dir.endswith('/printed'):
                 lib_dirs.add(dir)
-    dirs.remove(source_dir)
+    dirs.discard(source_dir)
     return [source_dir] + sorted(dirs) + sorted(lib_dirs)

scripts/exports.py

@@ -39,7 +39,7 @@ def bom_to_parts(bom_dir, part_type, assembly = None):
     #
     part_files = []
     bom = assembly + '.txt' if assembly else "bom.txt"
-    suffix = ".dxf" if part_type == 'svg' else '.' + part_type
+    suffix = '.' + part_type
     with open(bom_dir + '/' + bom, "rt") as f:
         for line in f.readlines():
             words = line.split()
@@ -106,7 +106,7 @@ def make_parts(target, part_type, parts = None):
     #
     # Find all the scad files
     #
-    module_suffix = '_dxf' if part_type == 'svg' else '_' + part_type
+    module_suffix = '_' + part_type
     for dir in source_dirs(bom_dir):
         if targets and os.path.isdir(dir):
             for filename in os.listdir(dir):
@@ -141,7 +141,7 @@ def make_parts(target, part_type, parts = None):
                                             with open(part_maker_name, "w") as f:
                                                 f.write("include <NopSCADlib/global_defs.scad>\n")
                                                 f.write("use <%s/%s>\n" % (reltmp(dir, target), filename))
-                                                f.write("%s();\n" % module);
+                                                f.write("%s();\n" % module)
                                             t = time.time()
                                             openscad.run("-o", part_file, part_maker_name, "-D$bom=1", "-d", dname)
                                             times.add_time(part, t)

scripts/make_all.py

@@ -39,7 +39,7 @@ if __name__ == '__main__':
     target = None if len(sys.argv) == 1 else sys.argv[1]
     set_config(target, usage)
     boms(target)
-    for part in ['stl', 'dxf']:
+    for part in ['stl', 'dxf', 'svg']:
         make_parts(target, part)
         render(target, part)
         plateup(target, part)

scripts/openscad.py

@@ -26,6 +26,8 @@ import subprocess, sys
 
 def run_list(args, silent = False, verbose = False):
     cmd = ["openscad"] + args + ["--hardwarnings"]
+    if "-D$manifold=true" in args:
+        cmd += ["--enable"] + ["manifold"]
     if not silent:
         for arg in cmd:
             print(arg, end=" ")

scripts/options.py

@@ -24,7 +24,12 @@ from colorama import Fore, init
 
 def check_options(dir = '.'):
     global options, options_mtime
-    options = { "show_threads": str(os.getenv("NOPSCADLIB_SHOW_THREADS")) }
+    options = {
+        "show_threads": str(os.getenv("NOPSCADLIB_SHOW_THREADS")),
+        "vitamin_fa"  : str(os.getenv("NOPSCADLIB_VITAMIN_FA")),
+        "vitamin_fs"  : str(os.getenv("NOPSCADLIB_VITAMIN_FS")),
+        "manifold"    : str(os.getenv("NOPSCADLIB_MANIFOLD"))
+    }
     options_fname = dir + '/options.json'
     try:
         with open(options_fname) as json_file:

scripts/plateup.py

@@ -31,8 +31,8 @@ import re
 import time
 import times
 
-source_dirs = { "stl" : "platters", "dxf" : "panels" }
-target_dirs = { "stl" : "printed",  "dxf" : "routed" }
+source_dirs = { "stl" : "platters", "dxf" : "panels", "svg" : "panels" }
+target_dirs = { "stl" : "printed",  "dxf" : "routed", "svg" : "routed" }
 
 def plateup(target, part_type, usage = None):
     #

scripts/render.py

@@ -33,7 +33,7 @@ import json
 from tmpdir import *
 
 def usage():
-    print("\nusage:\n\trender [target_config] - Render images of the stl and dxf files.");
+    print("\nusage:\n\trender [target_config] - Render images of the stl, dxf and svg files.");
     sys.exit(1)
 
 def render(target, type):
@@ -57,7 +57,7 @@ def render(target, type):
     with open(bom_file) as json_file:
         flat_bom = json.load(json_file)
 
-    things = { 'stl' : 'printed', 'dxf' : 'routed' }[type]
+    things = { 'stl' : 'printed', 'dxf' : 'routed', 'svg' : 'routed' }[type]
     colours = {}
     for ass in flat_bom:
         for part in ass[things]:
@@ -112,3 +112,4 @@ if __name__ == '__main__':
     target =  sys.argv[1] if len(sys.argv) > 1 else None
     render(target, 'stl')
     render(target, 'dxf')
+    render(target, 'svg')

scripts/tests.py

@@ -201,7 +201,7 @@ def tests(tests):
             body = bodies[type]
 
             index[type] += [cap_name]
-            body += ['<a name="%s"></a>' % cap_name]
+            body += ['<a name="%s"></a>' % cap_name.lower()]
             body += ["## " + cap_name]
 
             doc = None
@@ -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('[[')
@@ -301,7 +301,7 @@ def tests(tests):
             for type in types:
                 if i < len(index[type]):
                     name = sorted(index[type])[i]
-                    print('<td> <a href = "#' + name + '">' + name + '</a> </td>', file = doc_file, end = '')
+                    print('<td> <a href = "#' + name.lower() + '">' + name + '</a> </td>', file = doc_file, end = '')
                 else:
                     print('<td></td>', file = doc_file, end = '')
             print('</tr>', file = doc_file)

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"]
@@ -374,7 +374,12 @@ def views(target, do_assemblies = None):
                         print('\n|%s' % ('---|' * n), file =  doc_file)
                         for j in range(n):
                             part = keys[i - n + j + 1]
-                            print('| ![%s](dxfs/%s) %s' % (part, part.replace('.dxf','.png'), '|\n' if j == j - 1 else ''), end = '', file = doc_file)
+                            if (part[-4:] == ".dxf"):
+                                print('| ![%s](dxfs/%s) %s' % (part, part.replace('.dxf','.png'), '|\n' if j == j - 1 else ''), end = '', file = doc_file)
+                            elif (part[-4:] == ".svg"):
+                                print('| ![%s](svgs/%s) %s' % (part, part.replace('.svg','.png'), '|\n' if j == j - 1 else ''), end = '', file = doc_file)
+                            else:
+                                print("Unkown file type ", part[-4:], " for file ", part)
                         print('\n', file = doc_file)
                 print('\n', file  = doc_file)
 

tests/BOM.scad

@@ -25,11 +25,11 @@ include <../core.scad>
 include <../vitamins/sheets.scad>
 use <../vitamins/insert.scad>
 
-screw = M3_cap_screw;
+screwM3 = M3_cap_screw;
 sheet = PMMA3;
 height = 10;
 
-insert = screw_insert(screw);
+insert = screw_insert(screwM3);
 
 module widget(thickness) {
     vitamin(str("widget(", thickness, "): Rivet like thing for ", thickness, "mm sheets"));
@@ -46,7 +46,13 @@ module widget(thickness) {
 module widget_stl() {
     stl("widget")
         union() {
-            rounded_rectangle([30, 30, 3], 2, true);
+            difference() {
+                rounded_rectangle([30, 30, 3], 2, true);
+                for(x = [-10,10])
+                    for (y=[-10,10])
+                        translate([x,y,-1.5])
+                            cylinder(r=2, h=3.5);
+            }
 
             render() insert_boss(insert, height, 2.2);
         }
@@ -57,7 +63,18 @@ module widget_dxf() {
         difference() {
             sheet_2D(sheet, 20, 20, 1);
 
-            drill(screw_clearance_radius(screw), 0);
+            drill(screw_clearance_radius(screwM3), 0);
+        }
+}
+
+module mdf_svg() {
+    svg("mdf")
+        difference() {
+            sheet_2D(MDF6, 40,40);
+            for(x = [-10,10])
+                for (y=[-10,10])
+                    translate([x,y,0])
+                        drill(screw_clearance_radius(screwM3), 0);
         }
 }
 
@@ -85,11 +102,23 @@ assembly("widget_top") {
 module widget_assembly()
 assembly("widget") {
 
-    widget_base_assembly();                 // Note this is not exploded because it is sub-assembly
+    translate_z(-6) {
+        render_2D_sheet(MDF6)
+            mdf_svg();
+            
+        explode(0)
+            for(x = [-10,10])
+                for (y=[-10,10])
+                    translate([x,y,-10])
+                        screw(screwM3, 10);
+    }
+
+    explode(3)
+        widget_base_assembly();                 // Note this is not exploded because it is sub-assembly
 
     translate_z(height) {
         translate_z(sheet_thickness(sheet))
-            screw_and_washer(screw, screw_length(screw, sheet_thickness(sheet) + 3, 2, longer = true), true);
+            screw_and_washer(screwM3, screw_length(screwM3, sheet_thickness(sheet) + 3, 2, longer = true), true);
 
         explode(5)
             translate_z(sheet_thickness(sheet) / 2 + eps)

tests/PCB.scad

@@ -62,30 +62,44 @@ 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, "1uF"],
-        [ 28,  2,   90, "smd_cap", CAP0805, 1.0, "100nF"],
-        [ 31,  2,   90, "smd_cap", CAP0603, 0.7, "10nF"],
-        [ 34,  3,   90, "smd_diode",DO241AC, "SS34"],
-        [ 21,  6,  -90, "smd_pot", TC33X1, "10K"],
-        [ 16,  6,  -90, "smd_sot", SOT23, "2N7000"],
-        [ 28,  8,  -90, "smd_sot", SOT223, "LM117"],
+        [ 10,  2,  -90, "smd_res", L2012C, "1u"],
+        [ 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],
+
+        [ 26, 10,  -90, "smd_sot", SOT23, "2N7000"],
+        [ 28, 16,  -90, "smd_sot", SOT223, "LM117"],
+
+        [ 30, 30,  -90, "smd_qfp", QFP50P1200X1200X160_64N, "ATSAM4S4BA"],
 
         [ 45,  35,   0, "2p54header", 4, 1],
         [ 60,  35,   0, "2p54header", 5, 1, false, "blue" ],
+        [ 60,  40, 180, "2p54header", 5, 1, false, undef, true],
         [ 80,  33,   0, "2p54boxhdr", 4, 2],
+        [ 80,  40,   0, "2p54boxhdr", 4, 2, false, true, true],
         [ 45,  30,   0, "2p54socket", 4, 1, false, 0, false, "red" ],
         [ 60,  30,   0, "2p54socket", 6, 1],
 
-        [ 59,  50, 180, "led", LED3mm, "red"],
-        [ 66,  50, 180, "led", LED5mm, "orange"],
-        [ 77,  50, 180, "led", LED8mm, "blue"],
-        [ 90,  50, 180, "led", LED10mm, "yellow"],
+        [ 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"],
@@ -105,23 +119,30 @@ test_pcb = ["test_pcb", "Test PCB",
         [ 25, 200,   0, "buzzer", 4.5, 8.5],
         [ 25, 218,   0, "buzzer"],
 
-        [ 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,   1,   0, "link", inch(0.4), 0.75, undef, undef, [1.5, "red"]], // Sleeved link
+        [ 45,   3,   0, "link", inch(0.4)], // Flat link
+        [ 45,   6,   0, "ax_diode", DO_41, "1N4007"],
+        [ 45,  10,   0, "ax_diode", DO_35, "1N4148"],
+        [ 45,  14,   0, "ax_res", res1_8, 1000],
+        [ 45,  18,   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
+        [ 35,   8, 180, "rd_transistor", TO92, "78L05", undef,  undef, "Regulator"],
+        [ 35,  13, 180, "rd_transistor", E_LINE, "ZTX853"],
+        [ 35,   3,   0, "link", 0, 5], // Vertical wire
 
-        [ 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,   3,   0, "link", inch(0.2), inch(0.4)], // Raised link
+        [ 60,   6,   0, "ax_diode", DO_41, "1N4007", inch(0.1)],
+        [ 60,  10,   0, "ax_diode", DO_35, "1N4148", inch(0.1)],
+
+        [ 60,  14,   0, "ax_res", res1_8, 1000000, 1, inch(0.1)],
+        [ 60,  18,   0, "ax_res", res1_4, 100,     2, inch(0.1)],
         [ 60,  22,   0, "ax_res", res1_2, 10,     10, inch(0.2)],
 
         [ 33,  110, -90, "rd_xtal", HC49,    "4MHz" ],
         [ 28,  110, -90, "rd_xtal", HC49_4H, "10MHz" ],
-        [ 28,  103, -90, "rd_xtal", C_002RX, "60KHz", 2 ],
+        [ 28,  102, -90, "rd_xtal", C_002RX, "60KHz", 3, inch(0.1) ],
 
         [ 30,  130,-90, "rd_xtal", ACT1100, "40MHz", 0.5 ],
         [ 30,  150,-90, "rd_xtal", ACT1700, "80MHz", 0.5 ],
@@ -130,11 +151,16 @@ test_pcb = ["test_pcb", "Test PCB",
         [ 95,  15, -90, "flat_flex"],
         [ 87,  15, -90, "flat_flex", true],
 
-        [ 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"],
+        [ 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"],
@@ -161,7 +187,10 @@ test_pcb = ["test_pcb", "Test PCB",
         [ 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)],
+        [ 70, 150,   0, "chip", 10, 5, 1, grey(20)],
+
+         [90, 140, -90, "relay", HF33F, "012-HSL-3F"],
+
 
         [ 52, 206,   0, "2p54socket", 8, 1 ],
         [ 52, 194,   0, "2p54socket", 8, 1, false, 0, false, "red" ],
@@ -177,5 +206,5 @@ test_pcb = ["test_pcb", "Test PCB",
 
 
 if($preview)
-    let($show_threads = true)
+    let($show_threads = true, $solder = pcb_solder(test_pcb))
         pcb(test_pcb);

tests/PCB_utils.scad

@@ -0,0 +1,48 @@
+//
+// 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>
+
+use <../utils/pcb_utils.scad>
+
+module pcb_utils() {
+    let($solder = [1, 0, 1.6])
+        solder();
+
+    r = 2;
+    h = 10;
+
+    color(grey(20))
+        cylinder(r = r, h = h);
+
+    color("silver")
+        vflip()
+            cylinder(d = 0.6, h = 3, $fs = fs, $fa = fa);
+
+    color("white")
+        translate_z(h / 2)
+            cylindrical_wrap(r = r)
+                resize([0, h * .8], auto = true)
+                    rotate(90)
+                        text("Hello", halign = "center", valign = "center");
+}
+
+if($preview)
+    rotate(-45)
+        pcb_utils();

tests/PCBs.scad

@@ -50,4 +50,5 @@ module pcbs() {
             pcb(p);
 }
 if($preview)
-    pcbs();
+    let($show_threads = false)
+        pcbs();

tests/SBR_rails.scad

@@ -0,0 +1,46 @@
+//
+// 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/sbr_rails.scad>
+
+use <../utils/layout.scad>
+use <../vitamins/bearing_block.scad>
+
+length = 200;
+sheet = 3;
+
+module sbr_rails()
+    layout([for(r = sbr_rails) sbr_rail_base_width(r)], 10)
+        rotate([90, 180,0]) {
+            rail = sbr_rails[$i];
+            sbr_rail(rail, length);
+            carriage = sbr_rail_carriage(rail);
+            screw = sbr_rail_screw(rail);
+
+            sbr_bearing_block_assembly(carriage, sheet);
+
+            sbr_screw_positions(rail, length)
+                explode(20)
+                    rotate([90,0,0])
+                        screw(sbr_rail_screw(rail), 18);
+
+         }
+
+if($preview)
+    sbr_rails();

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[$i], ["1R0", "10", "100", "10M", "100K", "10u"][$i % 6]);
 
     translate([0, 3])
         layout([for(l = smd_leds) smd_led_size(l).x], 1)
@@ -35,29 +35,44 @@ module smds() {
                 smd_capacitor(c, smd_cap_size(c).y * 0.8);
 
     translate([0, 9])
-        layout([for(d = smd_diodes) smd_diode_size(d).x], 1)
+        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, 15])
+    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, 21])
+    translate([0, 18])
         layout([for(p = smd_pots) smd_pot_size(p).x], 1)
             let(p = smd_pots[$i])
                 smd_pot(p, "10K");
 
-    translate([0, 28])
+    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, 36])
-        layout([for(i = smd_inductors) smd_inductor_size(i).x], 1)
+    translate([0, 39])
+        layout([for(i = smd_inductors) smd_inductor_leads(i).x], 1)
             let(i = smd_inductors[$i])
-                smd_inductor(i, "4R7");
+                smd_inductor(i, ["4R7", "10R"][$i % 2]);
+
+    translate([20, 6])
+         layout([for(q = smd_qfps) smd_qfp_body_size(q).x], 3)
+            let(q = smd_qfps[$i])
+                smd_qfp(q, ["ATSAM4S4BA"][$i]);
 }
 
 if($preview)

tests/antennas.scad

@@ -0,0 +1,31 @@
+//
+// 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>
+use <../utils/layout.scad>
+
+include <../vitamins/antennas.scad>
+
+module antennas()
+    layout([for(a = antennas) cos(10) * antenna_length(a) ], 5, true) {
+        antenna(antennas[$i], 3, 10);
+
+    }
+
+if($preview)
+    antennas();