I re-build Commodore PET computers with new parts. Among the new parts are keyboards using modern MX-compatible Switches, and I needed proper keycaps for those.

So, I created all keycap parts, and integrated them in the Tinkercad web tool.

The key form is created using OpenSCAD by a parametric generator (by Thingieverse user rsheldiii, published under the CC BY-SA 3.0 license).

Most of the top character prints are made from a Microgramm font, converted to SVG using the Font Squirrel web page.

Some top characters, and especially the top words ("SHIFT", "RUN STOP" etc) are taken from Steve Gray's page, from the labels file found there. As SVG exported from inkscape did not work when imported into tinkercad, I had to make screenshots from each character, and convert these screenshots into SVGs using this online converter.

The front characters are all from an SVG file from wikipedia, from which I also took screenshots and converted to SVG as above.

Further information (links) on its build page: https://github.com/fachat/MicroPET/tree/main/Case

Note that for these I have optimized for (still to be tested!) resin printers, by cutting out space on the bottom where some connectors in the keys used to be to keep the stem from warping on PLA printers.

Note: due to certain size limits I had to split the STL file into two parts after I fixed three keys, and added 1.5u CTRL key (the previous and still included one is 1.25u)