Print at 0.15mm layer height. Models should be in correct orientation for printing. Tolerance at mounting point is 0.10mm on either side which makes for a snug fit. If your printer isn't very good at dimensional accuracy, you may need to scale up a bit. I plan to add models with different tolerances to negate the need for scaling in such cases.
Currently, I have included one smooth 1u keycap and one homing 1u keycap. The homing keycap has a 8.0mm diameter circle recessed 0.3mm into top of the keycap. This adds just a bit of tactile homing to otherwise difficult to navigate keycaps. I plan to add a 2u POS style keycap. If there is interest, I may attempt other more common keycaps sizes.
Pictured keyboard: Keebio Iris rev4
The author marked this model as their own original creation.