Ok, My son designed this after I gave him my specs. I wanted on that used 4-40 nuts and 4-40 - 1/2" screws. The final product is the last image. The demo one print wrong but you can use ti to visualize the nuts. I printed the print around the nuts (added them during the process.
Printed without wires soldered on:
Top of the switch without a screw:
Bottom of the switch:
The groves on the side are for the wires.
Final product:
Printed without wires soldered on:
Top of the switch without a screw:
Bottom of the switch:
The groves on the side are for the wires.
Final product: