Here’s a #gridfinity #keycap tray that I designed in #openscad. My design file is parameterized for keycap size, height, and number of keycaps. The gridfinity bit is optional, you can generate just the plain grid - but when gridfinity is enabled it automatically figures out the necessary size in gridfinity spacing. Not super happy with my test print (there was some slight bed adhesion issue), but the design works.
The author marked this model as their own original creation.