Parametric Keycaps (customisable, MX)

Loft based DSA like design in FreeCAD, good starting point for making your own keycaps. Dimensions can be easily changed without much FreeCAD knowledge via the spreadsheet, and a different stem can be substituted to fit other switches. 

One of the main ideas here is for all visible lines to be closed loops, i.e. no Z variation and edges around the top.

You probably want concentric top surface pattern, 45 degree bridges, scarf joint in Orca, outer/inner wall order (as there are no overhangs). 

I printed these with a 0.6 nozzle and 0.3 layer height, but anything else should work fine and look good too.

Please always include the original CAD files if remixing, not just the final STL.