I designed this in Alibre V25. Print two gears and two side pieces. Print the side pieces with the pins facing up. I glued the thing together with crazy glue. Wipe a bit of glue on the ends of the alignment pins on the side pieces.Be careful not to apply too much or the gears will get glued to the side and not spin. No big deal to make or assemble, but fun to fiddle with.

Prusa

I3 MK3S

No

No

.15 - .2

25 percent