The buttons can be customized in FreeCAD via the spreadsheet: diameter, thickness, etc. Values such as feasible hole diameter, feasible hole spread, and feasible fillet radii are then calculated automatically. A 2 hole and a 4 hole button are generated simultaneously. Print in any material that pleases you. The examples in the photo are done in black PLA and clear PETG.
buttons-2-hole-Button.stl | 144.4KB | |
buttons-4-hole-Button.stl | 155.0KB | |
buttons.FCStd | 55.0KB |