28byj48 to 12 HEX (1:10 RC Wheel) Adapter with M3 screw

Basically aan adapter to connect the 28byj48 motor shaft to a 12 hex wheel. I had no M4 screw so I built it for a M3 screw, so made the screw hole smaller (1,5 radius).

The Length has been set to 24,5mm so it frees the motor, but a smaller length would also do it.

Original FreeCAD file include.