here are some keycaps that are fairly easy to print, if you have a very good printer you can afford to reduce the print size by 1 or 2% but normally the tolerances are good,
I'm using a 0.4 nozzle on the Creality K1 with OrcaSlicer.
keycaps.stl | 41.8KB | |
keycaps_V2.stl | 12.2KB | |
keycaps_v3.stl | 16.7KB |