Dome option added to nut to draw acorn nuts.

Chamfers added to nuts and hex head screws when manifold is used.
Mods to allow the manifold experimetal option to be used.
2025-09-07 13:40:45 +02:00 · 2024-02-10 01:11:54 +00:00 · 2024-02-10 01:05:24 +00:00 · 2024-02-05 19:16:10 +00:00 · 2024-02-05 01:03:52 +00:00 · 2024-02-05 00:59:29 +00:00
76 changed files with 453 additions and 185 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,71 @@
 This changelog is generated by `changelog.py` using manually added semantic version tags to classify commits as breaking changes, additions or fixes.


+### [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.
@@ -193,7 +258,7 @@ Corrected BOM entry to show right angle options on Molex and pin headers.
 *   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.
@@ -608,7 +673,7 @@ 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.

@@ -629,7 +694,7 @@ 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.
 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`.

@@ -970,7 +1035,7 @@ 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.

@@ -1153,7 +1218,7 @@ 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.
@@ -1289,7 +1354,7 @@ 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
@@ -1511,7 +1576,7 @@ 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.
@@ -1567,7 +1632,7 @@ 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.
@@ -1640,7 +1705,7 @@ 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.

@@ -2175,7 +2240,7 @@ 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
@@ -2395,7 +2460,7 @@ 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

--- a/global_defs.scad
+++ b/global_defs.scad
@@ -41,13 +41,14 @@ 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 = is_undef($vitamin_fa) ? 6    : $vitamin_fa;          // Used for drawing vitamins, rather than printing.
--- a/libtest.png
+++ b/libtest.png
--- a/libtest.scad
+++ b/libtest.scad
@@ -226,7 +226,7 @@ translate([950, 1525])

 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 + 180;
 springs_y = circlips_y + 20;
@@ -482,7 +482,7 @@ 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])
--- a/printed/box.scad
+++ b/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);
--- a/readme.md
+++ b/readme.md
@@ -437,10 +437,14 @@ Individual teeth are not drawn, instead they are represented by a lighter colour
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
+|   1 | `belt(GT2x12, [ ... ])` |  Belt GT2 x 12mm x 128mm |
 |   1 | `belt(GT2x6, [ ... ])` |  Belt GT2 x 6mm x 128mm |
-|   1 | `belt(GT2x6, [ ... ])` |  Belt GT2 x 6mm x 552mm |
-|   2 | `belt(GT2x6, [ ... ])` |  Belt GT2 x 6mm x 556mm |
+|   1 | `belt(GT2x6, [ ... ])` |  Belt GT2 x 6mm x 584mm |
+|   2 | `belt(GT2x6, [ ... ])` |  Belt GT2 x 6mm x 588mm |
 |   1 | `belt(GT2x9, [ ... ])` |  Belt GT2 x 9mm x 128mm |
+|   1 | `belt(GT3x12, [ ... ])` |  Belt GT3 x 12mm x 128mm |
+|   1 | `belt(GT3x6, [ ... ])` |  Belt GT3 x 6mm x 128mm |
+|   1 | `belt(GT3x9, [ ... ])` |  Belt GT3 x 9mm x 128mm |
 |   1 | `belt(T2p5x6, [ ... ])` |  Belt T2.5 x 6mm x 130mm |
 |   1 | `belt(T5x10, [ ... ])` |  Belt T5 x 10mm x 130mm |
 |   1 | `belt(T5x6, [ ... ])` |  Belt T5 x 6mm x 130mm |
@@ -1087,6 +1091,7 @@ LCD displays.
 |   1 | `display(HDMI5)` |  HDMI display 5" |
 |   1 | `display(TFT128x160)` |  LCD TFT ST7735 display 128x160 |
 |   1 | `display(LCD1602A)` |  LCD display 1602A |
+|   1 | `display(LCD2004A)` |  LCD display 2004A |
 |   1 | `display(LCDS7282B)` |  LCD display S-7282B |
 |   1 | `display(SSD1963_4p3)` |  LCD display SSD1963 4.3" |

@@ -2343,6 +2348,7 @@ If a nut is given a child then it gets placed on its top surface.
 ### Properties
 | Function | Description |
 |:--- |:--- |
+| `nut_dome(type)` | Dome height and max thread depth if a domed acorn nut |
 | `nut_pitch(type)` | Pitch if not standard metric course thread |
 | `nut_radius(type)` | Radius across the corners |
 | `nut_size(type)` | Diameter of the corresponding screw |
@@ -2355,8 +2361,10 @@ If a nut is given a child then it gets placed on its top surface.
 ### Functions
 | Function | Description |
 |:--- |:--- |
+| `nut_dome_height(type)` | Height of the domed version |
 | `nut_flat_radius(type)` | Radius across the flats |
 | `nut_thickness(type, nyloc = false)` | Thickness of plain or nyloc version |
+| `nut_thread_depth(type)` | Max thread depth in domed version |
 | `nut_trap_flat_radius(nut, horizontal = false)` | Radius across the flats of a nut trap |
 | `nut_trap_radius(nut, horizontal = false)` | Radius across the corners of a nut trap |
 | `t_nut_tab(type)` | Sliding t-nut T dimensions |
@@ -2364,7 +2372,7 @@ If a nut is given a child then it gets placed on its top surface.
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| `nut(type, nyloc = false, brass = false, nylon = false)` | Draw specified nut |
+| `nut(type, nyloc = false, brass = false, nylon = false, dome = false)` | Draw specified nut |
 | `nut_and_washer(type, nyloc)` | Draw nut with corresponding washer |
 | `nut_square(type, brass = false, nylon = false)` | Draw specified square nut |
 | `nut_trap(screw, nut, depth = 0, horizontal = false, supported = false, h = 200)` | Make a nut trap |
@@ -2385,24 +2393,29 @@ If a nut is given a child then it gets placed on its top surface.
 |   1 | `sliding_t_nut(M3_sliding_t_nut)` |  Nut M3 sliding T |
 |   1 | `nut(M3_nut)` |  Nut M3 x 2.4mm  |
 |   1 | `nut(M3_nut, brass = true)` |  Nut M3 x 2.4mm brass |
+|   1 | `nut(M3_nut, dome = true)` |  Nut M3 x 2.4mm domed |
 |   1 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
 |   1 | `nut(M3nS_thin_nut)` |  Nut M3nS 5.5 x 1.8mm  |
 |   1 | `sliding_t_nut(M4_hammer_nut)` |  Nut M4 hammer |
 |   1 | `sliding_t_nut(M4_sliding_t_nut)` |  Nut M4 sliding T |
 |   1 | `nut(M4_nut)` |  Nut M4 x 3.2mm  |
+|   1 | `nut(M4_nut, dome = true)` |  Nut M4 x 3.2mm domed |
 |   1 | `nut(M4_nut, nyloc = true)` |  Nut M4 x 3.2mm nyloc |
 |   1 | `nut(M4nS_thin_nut)` |  Nut M4nS 7 x 2.2mm  |
 |   1 | `sliding_t_nut(M5_sliding_t_nut)` |  Nut M5 sliding T |
 |   1 | `nut(M5_nut)` |  Nut M5 x 4mm  |
+|   1 | `nut(M5_nut, dome = true)` |  Nut M5 x 4mm domed |
 |   1 | `nut(M5_nut, nyloc = true)` |  Nut M5 x 4mm nyloc |
 |   1 | `nut(M5nS_thin_nut)` |  Nut M5nS 8 x 2.7mm  |
 |   1 | `sliding_t_nut(M6_sliding_t_nut)` |  Nut M6 hammer |
 |   1 | `nut(M6_half_nut)` |  Nut M6 x 3mm  |
 |   1 | `nut(M6_nut)` |  Nut M6 x 5mm  |
+|   1 | `nut(M6_nut, dome = true)` |  Nut M6 x 5mm domed |
 |   1 | `nut(M6_nut, nyloc = true)` |  Nut M6 x 5mm nyloc |
 |   1 | `nut(M6nS_thin_nut)` |  Nut M6nS 10 x 3.2mm  |
 |   1 | `sliding_t_nut(M8_sliding_ball_t_nut)` |  Nut M8 sliding T with spring loaded ball |
 |   1 | `nut(M8_nut)` |  Nut M8 x 6.5mm  |
+|   1 | `nut(M8_nut, dome = true)` |  Nut M8 x 6.5mm domed |
 |   1 | `nut(M8_nut, nyloc = true)` |  Nut M8 x 6.5mm nyloc |
 |   1 | `nut(M8nS_thin_nut)` |  Nut M8nS 13 x 4mm  |
 |   1 | `washer(M6_washer)` |  Washer  M6 x 12.5mm x 1.5mm |
@@ -2837,12 +2850,14 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pcb(DuetE)` |  Duet 2 Ethernet electronics |
 |   1 | `pcb(Duex2)` |  Duex2 expansion board - not shown |
 |   1 | `pcb(Duex5)` |  Duex5 expansion board |
-|   1 | `pcb(ESP-01)` |  ESP-01 |
+|   1 | `pcb(ESP_01)` |  ESP-01 |
+|   1 | `pcb(ESP_01M)` |  ESP-01M WiFi module (ESP8285) |
 |   1 | `pcb(ESP_12F)` |  ESP-12F ESP8266 WiFi module |
 |   1 | `pcb(ESP_201)` |  ESP-201 ESP8266 WiFi module |
 |   1 | `pcb(ESP32_DOIT_V1)` |  ESP32 DOIT DEV KIT V1 |
 |   1 | `pcb(EnviroPlus)` |  Enviro+ |
 |   1 | `pcb(ExtruderPCB)` |  Extruder connection PCB - not shown |
+|   1 | `pcb(HW803_1WAY_RELAY)` |  HW-803 5V 1 way relay module |
 |   1 | `pcb(KY_040)` |  KY-040 rotart encoder breakout |
 |   1 | `pcb(Keyes5p1)` |  Keyes5.1 Arduino Uno expansion board - not shown |
 |   1 | `pcb(L9110S)` |  L9110S 2-Channel motor driver module |
@@ -2856,7 +2871,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `molex_254(3)` |  Molex KK header 3 way - not shown |
 |  20 | `nut(M2_nut, nyloc = true)` |  Nut M2 x 1.6mm nyloc |
 |  38 | `nut(M2p5_nut, nyloc = true)` |  Nut M2.5 x 2.2mm nyloc |
-|  43 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
+|  47 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
 |   8 | `nut(M4_nut, nyloc = true)` |  Nut M4 x 3.2mm nyloc |
 |   1 | `pcb(OPZ2)` |  Orange Pi Zero 2 |
 |   1 | `pcb(PI_IO)` |  PI_IO V2 - not shown |
@@ -2879,14 +2894,17 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   8 | `screw(M2_cap_screw, 20)` |  Screw M2 cap x 20mm |
 |   4 | `screw(M2_cap_screw, 25)` |  Screw M2 cap x 25mm |
 |   2 | `screw(M2p5_cap_screw, 20)` |  Screw M2.5 cap x 20mm |
-|   8 | `screw(M2p5_cap_screw, 25)` |  Screw M2.5 cap x 25mm |
+|   4 | `screw(M2p5_cap_screw, 25)` |  Screw M2.5 cap x 25mm |
+|   4 | `screw(M2p5_cap_screw, 30)` |  Screw M2.5 cap x 30mm |
 |  12 | `screw(M2p5_cap_screw, 35)` |  Screw M2.5 cap x 35mm |
 |   4 | `screw(M2p5_dome_screw, 25)` |  Screw M2.5 dome x 25mm |
 |   4 | `screw(M2p5_pan_screw, 20)` |  Screw M2.5 pan x 20mm |
 |   8 | `screw(M2p5_pan_screw, 30)` |  Screw M2.5 pan x 30mm |
 |  19 | `screw(M3_cap_screw, 16)` |  Screw M3 cap x 16mm |
 |  13 | `screw(M3_cap_screw, 20)` |  Screw M3 cap x 20mm |
-|  11 | `screw(M3_cap_screw, 30)` |  Screw M3 cap x 30mm |
+|   4 | `screw(M3_cap_screw, 25)` |  Screw M3 cap x 25mm |
+|   8 | `screw(M3_cap_screw, 30)` |  Screw M3 cap x 30mm |
+|   3 | `screw(M3_cap_screw, 35)` |  Screw M3 cap x 35mm |
 |   4 | `screw(M4_cap_screw, 20)` |  Screw M4 cap x 20mm |
 |   4 | `screw(M4_cap_screw, 25)` |  Screw M4 cap x 25mm |
 |   1 | `pcb(XIAO)` |  Seeeduino XIAO |
@@ -2898,7 +2916,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pcb(WD2002SJ)` |  WD2002SJ Buck Boost DC-DC converter |
 |  20 | `washer(M2_washer)` |  Washer  M2 x 5mm x 0.3mm |
 |  38 | `washer(M2p5_washer)` |  Washer  M2.5 x 5.9mm x 0.5mm |
-|  43 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
+|  47 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
 |   8 | `washer(M4_washer)` |  Washer  M4 x 9mm x 0.8mm |
 |   1 | `pcb(ZC_A0591)` |  ZC-A0591 ULN2003 driver PCB |

@@ -2906,23 +2924,24 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | Qty | Filename |
 | ---:|:--- |
 |   4 | pcb_spacer20100.stl |
-|   4 | pcb_spacer20130.stl |
+|   4 | pcb_spacer20140.stl |
 |   4 | pcb_spacer2070.stl |
 |   4 | pcb_spacer2080.stl |
 |   4 | pcb_spacer2090.stl |
-|   4 | pcb_spacer25120.stl |
-|   4 | pcb_spacer25150.stl |
+|   2 | pcb_spacer25100.stl |
+|   4 | pcb_spacer25130.stl |
 |   4 | pcb_spacer25160.stl |
-|   4 | pcb_spacer25170_2.stl |
+|   4 | pcb_spacer25170.stl |
 |   4 | pcb_spacer25180_2.stl |
-|   4 | pcb_spacer25220.stl |
+|   4 | pcb_spacer25190_2.stl |
 |   4 | pcb_spacer25230.stl |
 |   4 | pcb_spacer25240.stl |
+|   4 | pcb_spacer25250.stl |
 |   4 | pcb_spacer2580.stl |
-|   2 | pcb_spacer2590.stl |
-|   4 | pcb_spacer30190.stl |
+|   4 | pcb_spacer30120.stl |
 |   4 | pcb_spacer30200.stl |
-|   3 | pcb_spacer30210.stl |
+|   4 | pcb_spacer30210.stl |
+|   3 | pcb_spacer30220.stl |
 |  10 | pcb_spacer3050.stl |
 |   9 | pcb_spacer3060.stl |
 |   9 | pcb_spacer3070.stl |
@@ -3749,6 +3768,7 @@ For an explanation of `screw_polysink()` see <https://hydraraptor.blogspot.com/2
 ### Functions
 | Function | Description |
 |:--- |:--- |
+| `screw_angle(type, length, nut_distance)` | How much to rotate the screw to align it with a nut at the specified `distance` from the head |
 | `screw_boss_diameter(type)` | Boss big enough for nut trap and washer |
 | `screw_head_depth(type, d = 0)` | How far a counter sink head will go into a straight hole diameter d |
 | `screw_insert(screw, short = false, i = 0)` | Find insert to fit specified screw, defaults to longest but can specify the shortest |
@@ -3757,6 +3777,7 @@ For an explanation of `screw_polysink()` see <https://hydraraptor.blogspot.com/2
 | `screw_nut_radius(type)` | Radius of matching nut |
 | `screw_polysink_r(type, z)` | Countersink hole profile corrected for rounded staircase extrusions. |
 | `screw_shorter_than(x)` | Returns the length of the longest screw shorter than or equal to x |
+| `screw_thread_radius(type)` | Thread radius |

 ### Modules
 | Module | Description |
@@ -4005,6 +4026,8 @@ When woven sheets (e.g. carbon fibre) are rendered it is necessary to specify th
 |   1 | `sheet(MDF10, 30, 30, 2)` |  Sheet MDF 30mm x 30mm x 10mm |
 |   1 | `sheet(MDF12, 30, 30, 2)` |  Sheet MDF 30mm x 30mm x 12mm |
 |   1 | `sheet(MDF19, 30, 30, 2)` |  Sheet MDF 30mm x 30mm x 19mm |
+|   1 | `sheet(MDF22, 30, 30, 2)` |  Sheet MDF 30mm x 30mm x 22mm |
+|   1 | `sheet(MDF3, 30, 30, 2)` |  Sheet MDF 30mm x 30mm x 3mm |
 |   1 | `sheet(MDF6, 30, 30, 2)` |  Sheet MDF 30mm x 30mm x 6mm |
 |   1 | `sheet(PMMA1p25, 30, 30, 2)` |  Sheet acrylic 30mm x 30mm x 1.25mm |
 |   1 | `sheet(PMMA10, 30, 30, 2)` |  Sheet acrylic 30mm x 30mm x 10mm |
@@ -5075,7 +5098,7 @@ The top bezel can have an optional child, which is subtracted to allow modificat
 | `box_back(type)` | Default back, can be overridden to customise |
 | `box_back_blank(type, sheet = false)` | Generates a 2D template for the back sheet, `sheet` can be set to override the type |
 | `box_base(type)` | Default base, can be overridden to customise |
-| `box_base_blank(type)` | Generates a 2D template for the base sheet |
+| `box_base_blank(type, sheet = false)` | Generates a 2D template for the base sheet, `sheet` can be set to override the type |
 | `box_bezel(type, bottom)` | Generates top and bottom bezel STLs |
 | `box_bezel_section(type, bottom, rows, cols, x, y)` | Generates interlocking sections of the bezel to allow it to be bigger than the printer |
 | `box_corner_profile(type)` | Generates the corner profile STL for 3D printing. |
@@ -7429,7 +7452,7 @@ This is to prevent the global BOM page becoming too wide in large projects by ha
 The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view.
 The resulting flat BOM is shown but hierarchical BOMs are also generated for real projects.

-If the code to make an STL or DXF is made a child of the `stl()` or `dxf()` module then the STL or DXF will be used in the assembly views generated by `views.py` instead of generating
+If the code to make an STL, DXF or SVG is made a child of the `stl()`, `dxf()` or `svg()` module then the STL, DXF or SVG will be used in the assembly views generated by `views.py` instead of generating
 it with code.
 This can speed up the generation of the build instructions greatly but isn't compatible with STLs that include support structures.

@@ -7468,8 +7491,10 @@ The `pose()` module allows assembly views in the readme to be posed differently
 | `pose_vflip(exploded = undef)` | Pose an STL or assembly for rendering to png by flipping around the X axis, `exploded = true for` just the exploded view or `false` for unexploded only. |
 | `stl(name)` | Name an stl that will appear on the BOM, there needs to a module named `<name>_stl` to make it |
 | `stl_colour(colour = pp1_colour, alpha = 1)` | Colour an stl where it is placed in an assembly. `alpha` can be used to make it appear transparent. |
+| `svg(name)` | Name an svg that will appear on the BOM, there needs to a module named `<name>_svg` to make it |
 | `use_dxf(name)` | Import a DXF to make a build panel |
 | `use_stl(name)` | Import an STL to make a build platter |
+| `use_svg(name)` | Import an SVG to make a build panel |
 | `vitamin(description)` | Describe a vitamin for the BOM entry and precede it with a module call that creates it, eg. "widget(42): Widget size 42" |

 ![bom](tests/png/bom.png)
@@ -7480,6 +7505,8 @@ The `pose()` module allows assembly views in the readme to be posed differently
 |   1 | `insert(F1BM3)` |  Heatfit insert M3 x 5.8mm |
 |   1 | `widget(3)` |  Rivet like thing for 3mm sheets |
 |   1 | `screw(M3_cap_screw, 8)` |  Screw M3 cap x  8mm |
+|   4 | `screw(M3_cap_screw, 10)` |  Screw M3 cap x 10mm |
+|   1 | `sheet(MDF6, 40, 40)` |  Sheet MDF 40mm x 40mm x 6mm |
 |   1 | `sheet(PMMA3, 20, 20, 1)` |  Sheet acrylic 20mm x 20mm x 3mm |
 |   1 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
 |   1 | `star_washer(M3_washer)` |  Washer star M3 x 0.5mm |
@@ -7492,6 +7519,7 @@ The `pose()` module allows assembly views in the readme to be posed differently
 ### Routed
 | Qty | Filename |
 | ---:|:--- |
+|   1 | mdf.svg |
 |   1 | widget.dxf |

 ### Assemblies
@@ -7519,7 +7547,7 @@ Original version by Doug Moen on the OpenSCAD forum
 | Module | Description |
 |:--- |:--- |
 | `box(xmin, ymin, zmin, xmax, ymax, zmax)` | Construct a box given its bounds |
-| `clip(xmin = -inf, ymin = -inf, zmin = -inf, xmax = inf, ymax = inf, zmax = inf, convexity = 1)` | Clip child to specified boundaries |
+| `clip(xmin = -big, ymin = -big, zmin = -big, xmax = big, ymax = big, zmax = big, convexity = 1)` | Clip child to specified boundaries |

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

@@ -7565,6 +7593,7 @@ See [global_defs.scad](../../global_defs.scad) for a list of global constants.
 | `extrude_if(h, center = true)` | Extrudes 2D object to 3D when `h` is nonzero, otherwise leaves it 2D |
 | `hflip(flip=true)` | Invert children by doing a 180&deg; flip around the Y axis |
 | `render_if(render = true, convexity = 2)` | Renders an object if `render` is true, otherwise leaves it unrendered |
+| `render_manifold()` | Render if manifold to work around convexity bug in manifold |
 | `right_triangle(width, height, h, center = true)` | A right angled triangle with the 90&deg; corner at the origin. 3D when `h` is nonzero, otherwise 2D |
 | `semi_circle(r, d = undef)` | A semi circle in the positive Y domain |
 | `translate_z(z)` | Shortcut for Z only translations |
--- a/scripts/bom.py
+++ b/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
--- a/scripts/deps.py
+++ b/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

--- a/scripts/exports.py
+++ b/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)
--- a/scripts/make_all.py
+++ b/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)
--- a/scripts/openscad.py
+++ b/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=" ")
--- a/scripts/options.py
+++ b/scripts/options.py
@@ -26,8 +26,9 @@ def check_options(dir = '.'):
    global options, options_mtime
    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"))
+        "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:
--- a/scripts/plateup.py
+++ b/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):
    #
--- a/scripts/render.py
+++ b/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')
--- a/scripts/views.py
+++ b/scripts/views.py
@@ -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)

--- a/tests/BOM.scad
+++ b/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)
--- a/tests/PCB_utils.scad
+++ b/tests/PCB_utils.scad
--- a/tests/belts.scad
+++ b/tests/belts.scad
@@ -21,14 +21,20 @@ include <../core.scad>
 include <../vitamins/pulleys.scad>
 use <../vitamins/insert.scad>
 use <../utils/layout.scad>
+use <../utils/maths.scad>

 module belt_test() {
-    p2 = [-75, -50];
-    p3 = [-75, 100];
-    p4 = [ 75, 100];
+    widths = [for(b = belts) belt_width(b)];
+    gap = 5;
+    belts_width = sumv(widths) + (len(belts) - 1) * gap;
+    width = belts_width + 50;

-    p5 = [ 75 + pulley_pr(GT2x20ob_pulley) - pulley_pr(GT2x16_plain_idler), +pulley_pr(GT2x16_plain_idler)];
-    p6 = [-75 + pulley_pr(GT2x20ob_pulley) + pulley_pr(GT2x16_plain_idler), -pulley_pr(GT2x16_plain_idler)];
+    p2 = [-width / 2, -50];
+    p3 = [-width / 2, 100];
+    p4 = [ width / 2, 100];
+
+    p5 = [ width / 2 + pulley_pr(GT2x20ob_pulley) - pulley_pr(GT2x16_plain_idler), +pulley_pr(GT2x16_plain_idler)];
+    p6 = [-width / 2 + pulley_pr(GT2x20ob_pulley) + pulley_pr(GT2x16_plain_idler), -pulley_pr(GT2x16_plain_idler)];

    module pulleys(flip = false) {
        translate(p2) rotate([0, flip ? 180 : 0, 0]) pulley_assembly(GT2x20ob_pulley);
@@ -70,15 +76,15 @@ module belt_test() {
            pulleys(flip=true);
        }

-    translate([-25, 0, 10])
-        layout([for(b = belts) belt_width(b)], 10)
+    translate([-belts_width / 2, 0, 10])
+        layout(widths, gap)
            rotate([0, 90, 0])
                belt(belts[$i], [[0, 0, 20], [0, 1, 20]], belt_colour = $i%2==0 ? grey(90) : grey(20), tooth_colour = $i%2==0 ? grey(70) : grey(50));

    // new example with open loop - this is a simplified example of the style used for example for the BLV 3D printer
    pulley = GT2x20ob_pulley;
    idler = GT2x16_plain_idler;
-    corners = [[-75,-50],[75,100]];
+    corners = [[-width / 2,-50],[width / 2,100]];
    carriagepos = [0,0];
    carriagew = 80;

@@ -94,7 +100,7 @@ module belt_test() {
    translate_z(-30) {
        belt(belt, points, open=true, auto_twist=true);
        for (p = points)
-            if (is_list(p.z))
+            if(is_list(p.z))
                translate([p.x, p.y, 0])
                    pulley_assembly(p.z);
    }
--- a/tests/fuseholder.scad
+++ b/tests/fuseholder.scad
@@ -20,8 +20,10 @@ include <../utils/core/core.scad>

 use <../vitamins/fuseholder.scad>

+thickness = 6;
+
 module fuseholders()
-    fuseholder(6);
+    fuseholder(thickness);

 if($preview)
    let($show_threads = 1)
--- a/tests/nuts.scad
+++ b/tests/nuts.scad
@@ -25,7 +25,11 @@ module nuts() {
            translate([0, nyloc ? 20 : 0])
                nut(n, nyloc);

-        translate([0, 40]) {
+        translate([0, 40])
+            if(nut_dome(n))
+                nut(n, dome = true);
+
+        translate([0, 60]) {
            if(n == M3_nut)
                nut(n, brass = true);

@@ -43,7 +47,7 @@ module nuts() {
                #nut_trap(M8_cap_screw, n, h = 30);
        }

-        translate([0, 60]) {
+        translate([0, 80]) {
            if(n == M3_nut)
                sliding_t_nut(M3_sliding_t_nut);

@@ -61,7 +65,7 @@ module nuts() {
                    sliding_t_nut(M8_sliding_ball_t_nut);
        }

-        translate([0, 80]) {
+        translate([0, 100]) {
            if(n == M3_nut)
                sliding_t_nut(M3_hammer_nut);

@@ -69,7 +73,7 @@ module nuts() {
                sliding_t_nut(M4_hammer_nut);
       }

-       translate([0, 100]) {
+       translate([0, 120]) {
            if(n == M3_nut)
               nut_square(M3nS_thin_nut);
            if(n == M4_nut)
--- a/tests/png/antennas.png
+++ b/tests/png/antennas.png
--- a/tests/png/axials.png
+++ b/tests/png/axials.png
--- a/tests/png/bearing_blocks.png
+++ b/tests/png/bearing_blocks.png
--- a/tests/png/belts.png
+++ b/tests/png/belts.png
--- a/tests/png/bom.png
+++ b/tests/png/bom.png
--- a/tests/png/cable_clip.png
+++ b/tests/png/cable_clip.png
--- a/tests/png/camera_housing.png
+++ b/tests/png/camera_housing.png
--- a/tests/png/displays.png
+++ b/tests/png/displays.png
--- a/tests/png/door_hinge.png
+++ b/tests/png/door_hinge.png
--- a/tests/png/door_latch.png
+++ b/tests/png/door_latch.png
--- a/tests/png/fans.png
+++ b/tests/png/fans.png
--- a/tests/png/flat_hinge.png
+++ b/tests/png/flat_hinge.png
--- a/tests/png/foot.png
+++ b/tests/png/foot.png
--- a/tests/png/fuseholder.png
+++ b/tests/png/fuseholder.png
--- a/tests/png/iecs.png
+++ b/tests/png/iecs.png
--- a/tests/png/jack.png
+++ b/tests/png/jack.png
--- a/tests/png/modules.png
+++ b/tests/png/modules.png
--- a/tests/png/nuts.png
+++ b/tests/png/nuts.png
--- a/tests/png/pcb_mount.png
+++ b/tests/png/pcb_mount.png
--- a/tests/png/pcbs.png
+++ b/tests/png/pcbs.png
--- a/tests/png/pillow_blocks.png
+++ b/tests/png/pillow_blocks.png
--- a/tests/png/pocket_handle.png
+++ b/tests/png/pocket_handle.png
--- a/tests/png/polyholes.png
+++ b/tests/png/polyholes.png
--- a/tests/png/potentiometers.png
+++ b/tests/png/potentiometers.png
--- a/tests/png/rails.png
+++ b/tests/png/rails.png
--- a/tests/png/ring_terminals.png
+++ b/tests/png/ring_terminals.png
--- a/tests/png/round.png
+++ b/tests/png/round.png
--- a/tests/png/screw_knob.png
+++ b/tests/png/screw_knob.png
--- a/tests/png/screws.png
+++ b/tests/png/screws.png
--- a/tests/png/sheets.png
+++ b/tests/png/sheets.png
--- a/tests/png/sk_brackets.png
+++ b/tests/png/sk_brackets.png
--- a/tests/png/socket_box.png
+++ b/tests/png/socket_box.png
--- a/tests/png/ssrs.png
+++ b/tests/png/ssrs.png
--- a/tests/png/toggles.png
+++ b/tests/png/toggles.png
--- a/tests/png/veroboard.png
+++ b/tests/png/veroboard.png
--- a/tests/polyholes.scad
+++ b/tests/polyholes.scad
@@ -73,7 +73,7 @@ module polyholes() {
    // Alternating polyholes
    //
    translate([30, -40])
-        alt_polyhole_stl();
+        render_manifold() alt_polyhole_stl();
    //
    // Poly rings
    //
--- a/tests/screws.scad
+++ b/tests/screws.scad
@@ -57,7 +57,7 @@ module screws() {
            }
        }
        translate([20, 60, -15])
-            polysink_stl();
+            render_manifold() polysink_stl();
 }

 if($preview)
--- a/utils/core/bom.scad
+++ b/utils/core/bom.scad
@@ -31,7 +31,7 @@
 //! The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view.
 //! The resulting flat BOM is shown but hierarchical BOMs are also generated for real projects.
 //!
-//! If the code to make an STL or DXF is made a child of the `stl()` or `dxf()` module then the STL or DXF will be used in the assembly views generated by `views.py` instead of generating
+//! If the code to make an STL, DXF or SVG is made a child of the `stl()`, `dxf()` or `svg()` module then the STL, DXF or SVG will be used in the assembly views generated by `views.py` instead of generating
 //! it with code.
 //! This can speed up the generation of the build instructions greatly but isn't compatible with STLs that include support structures.
 //!
@@ -168,12 +168,32 @@ module dxf(name) {                      //! Name a dxf that will appear on the B
        }
 }

+module svg(name) {                      //! Name an svg that will appear on the BOM, there needs to a module named `<name>_svg` to make it
+    if(bom_mode() && is_undef($in_svg)) {
+        if(is_undef($dxf_colour))
+            echo(str("~", name, ".svg"));
+        else
+            echo(str("~", name, ".svg(colour='", $dxf_colour, "')"));
+    }
+    if($children)
+        if(is_undef($pose))
+            let($in_svg = true)
+                children();
+        else {
+            path = is_undef($target) ? "/svgs/" : str("/", $target, "/svgs/");
+            import(str($cwd, path, name, ".svg"));
+        }
+}
+
 module use_stl(name)                //! Import an STL to make a build platter
    assert(false);                  // Here for documentation only, real version in core.scad

 module use_dxf(name)                //! Import a DXF to make a build panel
    assert(false);                  // Here for documentation only, real version in core.scad

+module use_svg(name)                //! Import an SVG to make a build panel
+    assert(false);                  // Here for documentation only, real version in core.scad
+
 function value_string(value) = is_string(value) ? str("\"", value, "\"") : str(value); //! Convert `value` to a string or quote it if it is already a string

 function arg(value, default, name = "") =   //! Create string for arg if not default, helper for `vitamin()`
--- a/utils/core/clip.scad
+++ b/utils/core/clip.scad
@@ -41,7 +41,7 @@ module box(xmin, ymin, zmin, xmax, ymax, zmax) //! Construct a box given its bou
         [0,2,3,1]]  // left
    );

-module clip(xmin = -inf, ymin = -inf, zmin = -inf, xmax = inf, ymax = inf, zmax = inf, convexity = 1) //! Clip child to specified boundaries
+module clip(xmin = -big, ymin = -big, zmin = -big, xmax = big, ymax = big, zmax = big, convexity = 1) //! Clip child to specified boundaries
    render(convexity = convexity) intersection() {
        children();

--- a/utils/core/core.scad
+++ b/utils/core/core.scad
@@ -37,3 +37,9 @@ module use_dxf(name) {               //! Import a DXF to make a build panel
    path = is_undef($target) ? "../dxfs/" : str($cwd, "/", $target, "/dxfs/");
    import(str(path, name, ".dxf"));
 }
+
+module use_svg(name) {               //! Import an SVG to make a build panel
+    svg(name);
+    path = is_undef($target) ? "../svgs/" : str($cwd, "/", $target, "/svgs/");
+    import(str(path, name, ".svg"));
+}
--- a/utils/core/global.scad
+++ b/utils/core/global.scad
@@ -74,6 +74,10 @@ module render_if(render = true, convexity = 2)      //! Renders an object if `re
    else
        children();

+module render_manifold()                            //! Render if manifold to work around convexity bug in manifold
+    render_if(manifold)
+        children();
+
 module extrude_if(h, center = true)                 //! Extrudes 2D object to 3D when `h` is nonzero, otherwise leaves it 2D
    if(h)
        linear_extrude(h, center = center, convexity = 5) // 3D
--- a/utils/offset.scad
+++ b/utils/offset.scad
@@ -47,11 +47,11 @@ module offset_3D(r, chamfer_base = false) { //! Offset 3D shape by specified rad
    else
        if(r < 0)
            render() difference() {
-                cube(inf / 2, center = true);
+                cube(big / 2, center = true);

                minkowski() {
                    difference() {
-                        cube(inf, center = true);
+                        cube(big, center = true);

                        children();
                    }
--- a/utils/pcb_utils.scad
+++ b/utils/pcb_utils.scad
@@ -52,6 +52,6 @@ module cylindrical_wrap(r, h = eps) { //! Wrap a 2D child extruded to height `h`
                            translate([(sides / 2 - i) * -dx, 0])
                                children();

-                            square([dx, inf], center = true);
+                            square([dx, big], center = true);
                        }
 }
--- a/vitamins/belt.scad
+++ b/vitamins/belt.scad
@@ -65,7 +65,7 @@ module belt(type, points, belt_colour = grey(20), tooth_colour = grey(50), open
    arcs = info[4];
    length = ceil(_belt_length(info, open) / pitch) * pitch;

-    part = str(type[0],pitch);
+    part = type[0];
    vitamin(str("belt(", no_point(part), "x", width, ", ", pointsx, "): Belt ", part," x ", width, "mm x ", length, "mm"));

    len = len(points);
--- a/vitamins/belts.scad
+++ b/vitamins/belts.scad
@@ -20,17 +20,23 @@
 //
 // Belt model
 //
-//             p     w  t     t     p
-//             i     i  h     o     i
-//             t     d  i     o     t
-//             c     t  c     t     c
-//             h     h  k     h     h line from tooth base
+//               p     w  t     t     p
+//               i     i  h     o     i
+//               t     d  i     o     t
+//               c     t  c     t     c
+//               h     h  k     h     h line from tooth base
 //
-T5x6 =  ["T",  5,    6, 2.2,  1.2,  0.5];
-T5x10 = ["T",  5,   10, 2.2,  1.2,  0.5];
-T2p5x6 =["T",  2.5,  6, 1.7,  0.7,  0.3];
-GT2x6 = ["GT", 2.0,  6, 1.38, 0.75, 0.254];
-GT2x9 = ["GT", 2.0,  9, 1.38, 0.75, 0.254];
+T5x6 =  ["T5",     5,  6, 2.2,  1.2,  0.5];
+T5x10 = ["T5",     5,  10,2.2,  1.2,  0.5];
+T2p5x6 =["T2.5", 2.5,  6, 1.7,  0.7,  0.3];

-belts = [T5x6, T5x10, T2p5x6, GT2x6, GT2x9];
+GT2x6 = ["GT2",  2.0,  6, 1.38, 0.75, 0.254];
+GT2x9 = ["GT2",  2.0,  9, 1.38, 0.75, 0.254];
+GT2x12 =["GT2",  2.0, 12, 1.38, 0.75, 0.254];
+
+GT3x6 = ["GT3",  2.0,  6, 1.52, 0.75, 0.254];
+GT3x9 = ["GT3",  2.0,  9, 1.52, 0.75, 0.254];
+GT3x12 =["GT3",  2.0, 12, 1.52, 0.75, 0.254];
+
+belts = [T5x6, T5x10, T2p5x6, GT2x6, GT2x9, GT2x12, GT3x6, GT3x9, GT3x12];
 use <belt.scad>
--- a/vitamins/displays.scad
+++ b/vitamins/displays.scad
@@ -54,6 +54,24 @@ LCD1602A = ["LCD1602A", "LCD display 1602A", 71.3, 24.3, 7.0, LCD1602APCB,
          [],                                       // clearance need for the ts ribbon
        ];

+LCD2004APCB = pcb("", "", [98, 60, 1.65], hole_d = 2.9, land_d = 5, colour = "green",
+    holes = [[-2.5, -2.5], [-2.5, 2.5], [2.5, 2.5], [2.5, -2.5]],
+    components = [
+        [49+19.05, - 2.5, 0, "2p54header", 16, 1]
+    ],
+    grid = [
+          49, 60 - 2.5, 16, 1, silver, inch(0.1), inch(0.1),
+    ]
+);
+
+LCD2004A = ["LCD2004A", "LCD display 2004A", 97, 39.5, 9.0, LCD2004APCB,
+          [0, 0, 0],                             // pcb offst
+          [[-76 / 2, -26 / 2], [76 / 2, 26 / 2, 0.6]],              // aperture
+          [],                                       // touch screen
+          0,                                        // thread length
+          [],                                       // clearance need for the ts ribbon
+        ];
+
 LCDS7282BPCB = pcb("", "", [85, 36, 1.65], hole_d = 2.56, colour = "green",
    holes = [[-2.5, -2.5], [-2.5, 2.5], [2.5, 2.5], [2.5, -2.5]],
    components = [
@@ -149,6 +167,6 @@ BigTreeTech_TFT35v3_0 = ["BigTreeTech_TFT35v3_0", "BigTreeTech TFT35 v3.0",
 ];


-displays = [HDMI5, SSD1963_4p3, BigTreeTech_TFT35v3_0, LCD1602A, LCDS7282B, TFT128x160];
+displays = [HDMI5, SSD1963_4p3, LCD2004A, BigTreeTech_TFT35v3_0, LCD1602A, LCDS7282B, TFT128x160];

 use <display.scad>
--- a/vitamins/fuseholder.scad
+++ b/vitamins/fuseholder.scad
@@ -20,7 +20,7 @@
 //
 //! 20mm panel mount fuse holder.
 //
-include <../utils/core/core.scad>
+include <../core.scad>
 include <spades.scad>
 use <../utils/tube.scad>
 use <../utils/thread.scad>
@@ -69,18 +69,10 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa
    vflip()
        translate_z(thickness)
            explode(height, explode_children = true) {
-                color(colour) {
+                color(colour)
                    tube(or = nut_d / 2, ir = thread_d / 2, h = nut_flange_t, center = false);

-                    linear_extrude(nut_t)
-                        difference() {
-                            circle(d = nut_d, $fn = 6);
-
-                            circle(d = thread_d);
-                        }
-                }
-                if(show_threads && exploded())
-                    female_metric_thread(thread_d, thread_p, nut_t, false, colour = colour);
+                draw_nut(nut_d, thread_d, nut_t, thread_p, colour, show_threads && exploded() || thickness > thread);
            }
    //
    // Body
--- a/vitamins/insert.scad
+++ b/vitamins/insert.scad
@@ -56,7 +56,7 @@ module insert(type) { //! Draw specified insert
    vitamin(str("insert(", type[0], "): Heatfit insert M", insert_screw_diameter(type), " x ", length, "mm"));
    $fn = 64;
    thread_d = insert_screw_diameter(type);
-    explode(20, offset = [0, 0, -5]) translate_z(eps) vflip() {
+    explode(20, offset = [0, 0, -length]) translate_z(eps) vflip() {
        r1 = thread_d / 2;
        r2 = insert_barrel_d(type) / 2;
        r3 = insert_ring3_d(type) / 2;
--- a/vitamins/jack.scad
+++ b/vitamins/jack.scad
@@ -149,18 +149,8 @@ module jack_4mm_plastic(colour, thickness, display_colour = false) { //! Draw a
    }
    translate_z(-thickness)
        explode(-length)
-            vflip() {
-                color(silver)
-                    linear_extrude(nut_t)
-                        difference() {
-                            circle(d = nut_d, $fn = 6);
-
-                            circle(d = thread_d);
-                        }
-
-                if(show_threads)
-                    female_metric_thread(thread_d, thread_p, nut_t, false, colour = silver);
-            }
+            vflip()
+                draw_nut(nut_d, thread_d, nut_t, thread_p, silver, show_threads);
 }

 function jack_4mm_shielded_hole_radius() = 12 / 2; //! Panel hole radius for 4mm shielded jack
@@ -282,14 +272,7 @@ module post_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm bind
    module nut() {
        nut_t = 2.3;

-        color(silver)
-            linear_extrude(nut_t) difference() {
-                circle(d = 6.3 / cos(30), $fn = 6);
-
-                circle(d = thread_d);
-            }
-        if(show_threads)
-            female_metric_thread(thread_d, thread_p, nut_t, false, colour = silver);
+        draw_nut(6.3 / cos(30), thread_d, nut_t, thread_p, silver, show_threads);

        translate_z(nut_t)
            children();
@@ -498,16 +481,6 @@ module power_jack(thickness) { //! Draw a power jack socket with nut positioned
    // Nut
    translate_z(-thickness)
        explode(-length)
-            vflip() {
-                color(silver)
-                    linear_extrude(nut_t)
-                        difference() {
-                            circle(d = nut_d, $fn = 6);
-
-                            circle(d = thread_d);
-                        }
-
-                if(show_threads)
-                    female_metric_thread(thread_d, thread_p, nut_t, false, colour = silver);
-            }
+            vflip()
+                draw_nut(nut_d, thread_d, nut_t, thread_p, silver, show_threads);
 }
--- a/vitamins/nut.scad
+++ b/vitamins/nut.scad
@@ -37,6 +37,7 @@ function nut_thickness(type, nyloc = false) = nyloc ? type[4] : type[3]; //! Thi
 function nut_washer(type)     = type[5];        //! Corresponding washer
 function nut_trap_depth(type) = type[6];        //! Depth of nut trap
 function nut_pitch(type)      = type[7];        //! Pitch if not standard metric course thread
+function nut_dome(type)       = type[8];        //! Dome height and max thread depth if a domed acorn nut

 function nut_flat_radius(type) = nut_radius(type) * cos(30); //! Radius across the flats

@@ -44,36 +45,84 @@ function nut_square_size(type)      = type[1]; //! Diameter of the corresponding
 function nut_square_width(type)     = type[2]; //! Width of the square nut
 function nut_square_thickness(type) = type[3]; //! Thickness of the square nut

-module nut(type, nyloc = false, brass = false, nylon = false) { //! Draw specified nut
+function nut_dome_height(type)  = let(d = nut_dome(type)) d ? d[0] : nut_thickness(type); //! Height of the domed version
+function nut_thread_depth(type) = let(d = nut_dome(type)) d ? d[1] : nut_thickness(type); //! Max thread depth in domed version
+
+module draw_nut(od, id, t, pitch, colour, show_thread, thread_h = undef ) {
+    th = is_undef(thread_h) ? t : thread_h;
+
+    color(colour) {
+        or = od / 2;
+        fr = or * cos(30);
+
+        render_if(manifold) intersection() {
+            linear_extrude(t, convexity = 5)
+                difference() {
+                    circle(or, $fn = 6);
+
+                    if(id)
+                        circle(d = id);
+                }
+
+            if(manifold)
+                rotate_extrude()
+                    hull() {
+                        h = (or - fr) * tan(30);
+
+                        translate([0, -eps])
+                            square([fr, t + eps]);
+
+                        translate([or, h])
+                            square([eps, t - 2 * h]);
+                    }
+        }
+    }
+    if(show_thread && id)
+        female_metric_thread(id, pitch,
+            th,
+            top = th > t ? 0 : manifold ? 1 : -1,
+            bot = manifold ? 1 : -1,
+            center = false, colour = colour);
+}
+
+module nut(type, nyloc = false, brass = false, nylon = false, dome = false) { //! Draw specified nut
    thread_d = nut_size(type);
    thread_p = nut_pitch(type) ? nut_pitch(type) : metric_coarse_pitch(thread_d);
    hole_rad  = thread_d / 2;
    outer_rad = nut_radius(type);
    thickness = nut_thickness(type);
    nyloc_thickness = nut_thickness(type, true);
-    desc = nyloc ? "nyloc" : brass ? "brass" : nylon ? "nylon" : "";
-    vitamin(str("nut(", type[0], arg(nyloc, false, "nyloc"), arg(brass, false, "brass"), arg(nylon, false, "nylon"),
+    desc = nyloc ? "nyloc" : brass ? "brass" : nylon ? "nylon" : dome ? "domed" : "";
+    vitamin(str("nut(", type[0],
+                        arg(nyloc, false, "nyloc"),
+                        arg(brass, false, "brass"),
+                        arg(nylon, false, "nylon"),
+                        arg(dome,  false, "dome"),
                   "): Nut M", nut_size(type), " x ", thickness, "mm ", desc));

    $fs = fs; $fa = fa;

    colour = brass ? brass_colour : nylon ? grey(30): grey(70);
    explode(nyloc ? 10 : 0) {
+        draw_nut(outer_rad * 2, thread_d, thickness, thread_p, colour, show_threads, dome ? nut_thread_depth(type) : thickness);
+
+        fr = nut_flat_radius(type);
        color(colour) {
-            linear_extrude(thickness)
-                difference() {
-                    circle(outer_rad, $fn = 6);
-
-                    circle(hole_rad);
-                }
-
            if(nyloc)
-                translate_z(-eps)
-                    rounded_cylinder(r = outer_rad * cos(30) , h = nyloc_thickness, r2 = (nyloc_thickness - thickness) / 2, ir = hole_rad);
-        }
+                translate_z(eps)
+                    rounded_cylinder(r = outer_rad * cos(30), h = nyloc_thickness - eps, r2 = (nyloc_thickness - thickness) / 2, ir = hole_rad);

-        if(show_threads)
-            female_metric_thread(thread_d, thread_p, thickness, center = false, colour = colour);
+            if(dome)
+                translate_z(thickness)
+                    rotate_extrude()
+                        difference() {
+                            h = nut_dome_height(type) - thickness;
+                            r = fr - eps;
+                            rounded_corner(r, h, r);
+
+                            square([thread_d / 2, nut_thread_depth(type) - thickness]);
+                        }
+        }

        if(nyloc)
            translate_z(thickness)
--- a/vitamins/nuts.scad
+++ b/vitamins/nuts.scad
@@ -28,25 +28,25 @@ M5_nut_depth = 4;
 M6_nut_depth = 5;
 M8_nut_depth = 6.5;

-//                                      s    d    t    n     w              t                  t
-//                                      c    i    h    y     a              r                  h
-//                                      r    a    i    l     s              a                  r
-//                                      e    m    c    o     h              p                  e
+//                                      s    d    t    n     w              t                  t  d    d
+//                                      c    i    h    y     a              r                  h  o    o
+//                                      r    a    i    l     s              a                  r  m    m
+//                                      e    m    c    o     h              p                  e  e    e
 //                                      w    e    k    c     e                                 d
-//                                           t    n          r              d
-//                                           e    e    t                    e                  p
-//                                           r    s    h                    p                  i
-//                                                s    k                    t                  t
-//                                                                          h                  c
-//                                                                                             h
+//                                           t    n          r              d                     h    t
+//                                           e    e    t                    e                  p  e    h
+//                                           r    s    h                    p                  i  i    r
+//                                                s    k                    t                  t  g    e
+//                                                                          h                  c  h    a
+//                                                                                             h  t    d
 M2_nut      =      ["M2_nut",           2,   4.9, 1.6, 2.4,  M2_washer,     M2_nut_trap_depth, 0];
 M2p5_nut    =      ["M2p5_nut",         2.5, 5.8, 2.2, 3.8,  M2p5_washer, M2p5_nut_trap_depth, 0];
-M3_nut      =      ["M3_nut",           3,   6.4, 2.4, 4,    M3_washer,     M3_nut_trap_depth, 0];
-M4_nut      =      ["M4_nut",           4,   8.1, 3.2, 5,    M4_washer,     M4_nut_trap_depth, 0];
-M5_nut      =      ["M5_nut",           5,   9.2, 4,   6.25, M5_washer,     M5_nut_depth,      0];
-M6_nut      =      ["M6_nut",           6,  11.5, 5,   8,    M6_washer,     M6_nut_depth,      0];
+M3_nut      =      ["M3_nut",           3,   6.4, 2.4, 4,    M3_washer,     M3_nut_trap_depth, 0, [6,   5.40]];
+M4_nut      =      ["M4_nut",           4,   8.1, 3.2, 5,    M4_washer,     M4_nut_trap_depth, 0, [8,   5.74]];
+M5_nut      =      ["M5_nut",           5,   9.2, 4,   6.25, M5_washer,     M5_nut_depth,      0, [10,  7.79]];
+M6_nut      =      ["M6_nut",           6,  11.5, 5,   8,    M6_washer,     M6_nut_depth,      0, [12,  8.29]];
 M6_half_nut =      ["M6_half_nut",      6,  11.5, 3,   8,    M6_washer,     3,                 0];
-M8_nut      =      ["M8_nut",           8,  15,   6.5, 8,    M8_washer,     M8_nut_depth,      0];
+M8_nut      =      ["M8_nut",           8,  15,   6.5, 8,    M8_washer,     M8_nut_depth,      0, [15, 11.35]];
 toggle_nut  =      ["toggle_nut",       6.1, 9.2, 1.5, 1.5,  M6_washer,     1.5,               inch(1/40)];

 M4_wingnut  =      ["M4_wingnut",       4,  10,   3.75,8,    M4_washer,     0, 22, 10, 6, 3];
--- a/vitamins/pcbs.scad
+++ b/vitamins/pcbs.scad
@@ -765,6 +765,27 @@ MT3608 = ["MT3608", "MT3608 boost converter module",        37, 17, 1.2, 2, 1.5,
    [ [-12.05 , -6.8, 180, "trimpot10"]
    ]];

+HW803_1WAY_RELAY = [
+    "HW803_1WAY_RELAY", "HW-803 5V 1 way relay module",
+    50, 26, 1.6, // size
+    2, // corner radius
+    3, // mounting hole diameter
+    4, // pad around mounting hole
+    "red", // color
+    false, // true if parts should be separate BOM items
+    [ // hole positions
+        [3, 3], [-3, 3], [3, -3], [-3, -3]
+    ],
+    [ // components
+        [ 10.5 + 19/2, 26/2, 0,   "block", 19, 15, 15.5, "SkyBlue" ],
+        [ 50-5,        26/2, 0,   "term35", 3],
+        [ 5,           26/2, 180, "term35", 3],
+        [ 34,             2, 0,   "2p54header", 3, 1 ],
+    ],
+    [], // accessories
+    [], // grid
+];
+
 TP4056 = ["TP4056", "TP4056 Li-lon Battery charger module", 26.2, 17.5, 1.0, 0, 1.0, [2.4, 2.4], "#2140BE", false,
    [[1.67, 1.8], [1.67, -1.8], [-1.67, 1.8], [-1.67, -1.8], [-1.67, -4.98], [-1.67, 4.98]],
    [ [  2, 17.5 / 2, 180, "usb_uA"],
@@ -837,7 +858,7 @@ RAMPSEndstop = ["RAMPSEndstop", "RAMPS Endstop Switch",
    []];

 ESP_01 = [
-    "ESP-01", "ESP-01",
+    "ESP_01", "ESP-01",
    24.8, 14.6, 1, // size
    0, // corner radius
    0, // mounting hole diameter
@@ -863,6 +884,42 @@ ESP_01 = [
    [2.8 - 1.27, 3.54, 2, 4, silver, 2.54, 2.54] // grid
 ];

+//================================================
+// ESP_01M WIFI Module
+// by Karl McMurdo (XrXca)
+//================================================
+ESP_01M = [
+    "ESP_01M", "ESP-01M WiFi module (ESP8285)",
+    18, 18, 0.8, // size
+    0, // corner radius
+    0, // mounting hole diameter
+    0, // pad around mounting hole
+    grey(25), // color
+    false, // true if parts should be separate BOM items
+    [], // hole positions
+    [ // components
+        [ 7.6,   9,  0, "chip", 8.5, 16.8, 2, "silver" ],
+        // edge connector
+        for (y = [ 2.6 : 1.6 : 16 ]) [ -16.8, -y,  0, "block", 2.4, 0.8,  0.05,  gold ],
+        for (y = [ 2.6 : 1.6 : 16 ]) [ -16.8, -y,  0, "-block", 2.4, 0.8,  0.05,  gold ],
+        // antenna
+        [ -2.6, 15.5, 0, "block", 4.7, 0.5, 0.05, gold ],
+        [ -2.6, 3.75, 0, "block", 4.7, 0.5, 0.05, gold ],
+        [ -2.6, 1.5, 0, "block", 4.7, 0.7, 0.05, gold ],
+        for ( y = [5.9,8.5,10.7,13.3] ) [ -1.9, y, 0, "block", 3.3, 0.5, 0.05, gold ],
+        [ -0.5, 14.4, 0, "block", 0.5, 2.7, 0.05, gold ],
+        [ -0.5, 9.6, 0, "block", 0.5, 2.7, 0.05, gold ],
+        [ -3.3, 12, 0, "block", 0.5, 3.1, 0.05, gold ],
+        [ -3.3, 7.2, 0, "block", 0.5, 3.1, 0.05, gold ],
+        [ -0.5, 3.65, 0, "block", 0.5, 5, 0.05, gold ],
+        // Silkscreen
+        [16.5, -14.5, 270,"-text", 5, 1.2, "ESP-01M", "Liberation Sans:style=Bold"],
+    ],
+    [], // accessories
+    [], //grid
+    [[9,-9],[9,9],[-6,9],[-6,7.4],[-8.5,7.4],[-9,6.9],[-9,-6.9],[-8.5,-7.4],[-6,-7.4],[-6,-9]] // Polygon
+];
+
 XIAO = [
    "XIAO", "Seeeduino XIAO",
    21, 18, 1.2, // Size
@@ -1161,11 +1218,11 @@ tiny_buck = pcb("tiny_buck", "Ultra Small 3A buck regulator", [20, 11, 1.6],
    ]
 );

-tiny_pcbs = [ESP_201, ESP_12F, XIAO, MP1584EN, ESP_01, tiny_buck, LIPO_fuel_gauge];
+tiny_pcbs = [ESP_201, ESP_01M, XIAO, ESP_12F, MP1584EN, ESP_01,tiny_buck, LIPO_fuel_gauge];

 big_pcbs = [BTT_RELAY_V1_2, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];

-pcbs = [KY_040, TP4056, L9110S, ZC_A0591, RAMPSEndstop, MT3608, ArduinoNano, Feather405, RPI_Pico, ESP32_DOIT_V1, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, OPZ2, PanelDue_v3, RPI3A, RPI3, RPI4];
+pcbs = [KY_040, TP4056, L9110S, ZC_A0591, MT3608, RAMPSEndstop, ArduinoNano, HW803_1WAY_RELAY, Feather405, RPI_Pico, ESP32_DOIT_V1, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, OPZ2, PanelDue_v3, RPI3A, RPI3, RPI4];

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

--- a/vitamins/potentiometer.scad
+++ b/vitamins/potentiometer.scad
@@ -17,7 +17,7 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 //! Potentiometers and rotary encoders
-include <../utils/core/core.scad>
+include <../core.scad>
 use <../utils/rounded_cylinder.scad>
 use <../utils/round.scad>
 use <../utils/thread.scad>
@@ -71,18 +71,8 @@ module pot_nut(type, washer = true) { //! Draw the nut for a potentiometer and p
                    }

        if(nut)
-            color(nut[2])
-                translate_z(nut_z + exploded() * 10) {
-                    linear_extrude(nut[1])
-                        difference() {
-                            circle(d = nut.x / cos(30), $fn = 6);
-
-                            circle(d =  thread_d);
-                        }
-
-                    if(show_threads && exploded())
-                        female_metric_thread(thread_d, pot_thread_p(type), nut[1], center = false, colour = nut[2]);
-                }
+            translate_z(nut_z + exploded() * 10)
+                draw_nut(nut.x / cos(30), thread_d, nut[1], pot_thread_p(type), nut[2], show_threads && exploded());
    }
 }

--- a/vitamins/psu.scad
+++ b/vitamins/psu.scad
@@ -161,7 +161,7 @@ module psu(type) { //! Draw a power supply
                                        fan_holes(fan.z, h = 0);

                                        difference() {
-                                            square(inf, true);
+                                            square(big, true);

                                            fan_guard(fan.z, thickness = 0, grill = true);
                                        }
--- a/vitamins/screw.scad
+++ b/vitamins/screw.scad
@@ -49,6 +49,12 @@ function screw_head_depth(type, d = 0) =             //! How far a counter sink
        ? 0
        : let(r = screw_radius(type)) screw_head_radius(type) - max(r, d / 2) + r / 5;

+function screw_thread_radius(type)  = //! Thread radius
+    let(d = screw_thread_diameter(type)) is_undef(d) ? screw_radius(type) : d / 2;
+
+function screw_angle(type, length, nut_distance) = //! How much to rotate the screw to align it with a nut at the specified `distance` from the head
+    -360 * (length - nut_distance) /  metric_coarse_pitch(screw_thread_radius(type) * 2);
+
 function screw_longer_than(x) = x <=  5 ?  5 : //! Returns the length of the shortest screw length longer or equal to x
                                x <=  6 ?  6 :
                                x <=  8 ?  8 :
@@ -96,7 +102,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
    socket_rad  = socket_af / cos(30) / 2;
    max_thread  = screw_max_thread(type);
    has_shoulder = !is_undef(screw_thread_diameter(type));
-    thread_rad = has_shoulder ? screw_thread_diameter(type) / 2 : screw_radius(type);
+    thread_rad = screw_thread_radius(type);
    thread = max_thread ? length >= max_thread + 5 ? max_thread
                                                   : length
                        : length;
@@ -199,8 +205,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                    cylinder(h=2 * eps, r=socket_rad, $fn = 6);
        }
        if(head_type == hs_hex) {
-            color(colour)
-                cylinder(r = head_rad, h = head_height, $fn = 6);
+            draw_nut(head_rad * 2, 0, head_height, 0, colour, false);

            shaft();
        }
--- a/vitamins/sheets.scad
+++ b/vitamins/sheets.scad
@@ -26,11 +26,13 @@
 //
 mdf_colour = "#BEA587"; // sampled from a photo

+MDF3      = [ "MDF3",      "Sheet MDF",               3, mdf_colour,             true];
 MDF6      = [ "MDF6",      "Sheet MDF",               6, mdf_colour,             true];    // ~1/4"
 MDF10     = [ "MDF10",     "Sheet MDF",              10, mdf_colour,             true];    // ~3/8"
 MDF12     = [ "MDF12",     "Sheet MDF",              12, mdf_colour,             true];    // ~1/2"
 MDF18     = [ "MDF18",     "Sheet MDF",              18, mdf_colour,             true];
 MDF19     = [ "MDF19",     "Sheet MDF",              19, mdf_colour,             true];    // ~3/4"
+MDF22     = [ "MDF22",     "Sheet MDF",              22, mdf_colour,             true];
 PMMA1p25  = [ "PMMA1p25",  "Sheet acrylic",         1.25,[1,   1,   1,   0.5  ], false];
 PMMA2     = [ "PMMA2",     "Sheet acrylic",           2, [1,   1,   1,   0.5  ], false];
 PMMA3     = [ "PMMA3",     "Sheet acrylic",           3, [1,   1,   1,   0.5  ], false];   // ~1/8"
@@ -56,7 +58,7 @@ CF2 =       [ "CF2",       "Sheet carbon fiber",      2, grey(35),
 CF3 =       [ "CF3",       "Sheet carbon fiber",      3, grey(35),               false,  2,  2,  grey(20)];


-sheets = [CF1, CF2, CF3, MDF6, MDF10, MDF12, MDF19, PMMA1p25, PMMA2, PMMA3, PMMA6, PMMA8, PMMA10,
+sheets = [CF1, CF2, CF3, MDF3, MDF6, MDF10, MDF12, MDF19, MDF22, PMMA1p25, PMMA2, PMMA3, PMMA6, PMMA8, PMMA10,
         glass2, DiBond, DiBond6, Cardboard, FoilTape, AL1_6, AL2, AL3, AL6, AL8, Steel06, Spring08, Silicone3, Foam20];

 use <sheet.scad>
Author	SHA1	Message	Date
Chris Palmer	79478104d6	Dome option added to nut to draw acorn nuts. Chamfers added to nuts and hex head screws when manifold is used.	2024-02-10 01:11:54 +00:00
Chris Palmer	38196e9f78	Mods to allow the manifold experimetal option to be used.	2024-02-10 01:05:24 +00:00
Chris Palmer	9666c018a0	Made sheet overridable in box_base_blank().	2024-02-05 19:16:10 +00:00
Chris Palmer	8372655f25	Updated changelog.	2024-02-05 01:03:52 +00:00
Chris Palmer	f8a9c16360	Merge branch 'jeroenrnl-extra_mdf'	2024-02-05 00:59:29 +00:00
Chris Palmer	38988bacfa	Updated images.	2024-02-05 00:55:17 +00:00
Chris Palmer	f26ed7443d	Merge branch 'extra_mdf' of https://github.com/jeroenrnl/NopSCADlib into jeroenrnl-extra_mdf	2024-02-05 00:33:04 +00:00
Chris Palmer	453b68aaf9	Merge branch 'jeroenrnl-svg'	2024-02-05 00:22:41 +00:00
Chris Palmer	1ce7b64c73	Updated image.	2024-02-05 00:21:58 +00:00
Chris Palmer	9230fa78d7	Merge branch 'svg' of https://github.com/jeroenrnl/NopSCADlib into jeroenrnl-svg	2024-02-04 23:41:03 +00:00
Chris Palmer	a85c5cfa4b	Merge branch 'igramul-feature/add-HW-803-1-way-relais-module'	2024-02-04 23:39:39 +00:00
Chris Palmer	926dd8ca90	Reordered the PCB lists to fix the layout. Updated the images.	2024-02-04 23:32:13 +00:00
Chris Palmer	2ccfc1b506	Merge branch 'feature/add-HW-803-1-way-relais-module' of https://github.com/igramul/NopSCADlib into igramul-feature/add-HW-803-1-way-relais-module	2024-02-04 22:58:56 +00:00
Chris Palmer	fff0e9e3cb	Merge branch 'igramul-feature/add-display-LCD2004A'	2024-02-04 22:57:32 +00:00
Chris Palmer	43b101ae1e	Reordered the display list into reducing height for better layout. Updated the images.	2024-02-04 22:56:09 +00:00
Jeroen Roos	f85fdca051	Add generating SVG file for CNC usage Generate SVG files, like DXF files for CNC usage	2024-02-04 23:41:55 +01:00
Chris Palmer	1fc2be04d5	Merge branch 'feature/add-display-LCD2004A' of https://github.com/igramul/NopSCADlib into igramul-feature/add-display-LCD2004A	2024-02-04 21:19:16 +00:00
Chris	e3ad32713d	Rename pcb_utils.scad to PCB_utils.scad Fixed the filename case of PCB_utils.scad.	2024-02-04 19:02:14 +00:00
Jeroen Roos	82980392c9	Add extra MDF thicknesses	2024-02-04 19:22:21 +01:00
Lukas Burger	3961d7f1a4	add HW-803 5V 1 way relay module	2024-02-02 20:31:19 +01:00
Lukas Burger	1996189ab2	update readme file	2024-01-31 20:43:50 +01:00
Lukas Burger	9f8c309643	add display LCD2004A	2024-01-30 21:18:01 +01:00
Chris Palmer	3995f685dd	Removed debug echo().	2024-01-14 23:03:10 +00:00
Chris Palmer	e2ba69be46	Updated changelog.	2024-01-14 22:53:29 +00:00
Chris Palmer	41859ec224	Added screw_thread_radius() and screw_angle() functions.	2024-01-14 22:51:18 +00:00
Chris Palmer	cd95ef95ab	Added GT2x12, GT3x6, GT3x9 and GT3x12 belts.	2024-01-14 22:50:26 +00:00
Chris Palmer	7a9e73830e	Belt part number is not always the same as the pitch.	2024-01-12 22:30:34 +00:00
Chris Palmer	ad82ca21c5	Updated changelog.	2023-12-01 22:38:46 +00:00
Chris Palmer	ebe2dfd4fd	Fixed explode line position on short inserts.	2023-12-01 22:15:41 +00:00
Chris Palmer	49cc8333fd	Updated changelog.	2023-11-28 00:06:55 +00:00
Chris Palmer	e3722f88da	Merge branch 'xrxca-Add-ESP-01M-PCB'	2023-11-27 23:50:24 +00:00
Chris Palmer	b5afd7bd41	ESP-01M added.	2023-11-27 23:46:29 +00:00
Chris Palmer	0137a43a63	Updated images and readme.	2023-11-27 23:29:44 +00:00
Chris Palmer	027c1b393d	Merge branch 'Add-ESP-01M-PCB' of https://github.com/xrxca/NopSCADlib into xrxca-Add-ESP-01M-PCB	2023-11-27 20:35:05 +00:00
Chris Palmer	21324561c0	Updated changelog.	2023-11-26 23:31:58 +00:00
XrXca	72e5d1abfb	Update pcbs.scad Update pcbs.scad Update pcbs.scad Update pcbs.scad	2023-11-12 15:42:34 -07:00