A simple numpad, designed for 24 cherry or gateron switches, and a Teensy or ProMicro controller.

The case is tiltet at a 10° angle.

You will need glue to afix the controller to the case.

In order to screw the two pieces together, you will likely need this for the top: https://www.aliexpress.com/item/100pcs-lot-M3-L-D-4-Through-hole-brass-insert-nut-knurled-nuts-for-injection-moulding/32806163767.html?spm=2114.11010108.01008.6.650c649bkvyel8 Or you can use wood screws, but its not recommended.

There's space for 4 rubber pads, msg me if you want the dimensions changed. As it is, its made for ø8mm x 2.8mm pads, to sit in holes of 1.9mm depth.

Will make this on a good friend's Prusa i3 Mk3 in PLA @0.15mm.