Sturdy 40mm Button. The clever scissor mechanism evenly distributes the pressure across the entire contact surface. The built-in standard microswitch is reliably activated even when pressed in the corner. The button is very robust and can also be used as a foot switch.

Assembly: First, snap the scissor parts onto the base, then insert the microswitch and snap on the cover.

Additionally, you’ll need:

1 standard 5A microswitch (Omron SS-5 F or similar)
2 brass inserts (M3, 5mm)
2 countersunk screws (M3, 6mm)

I printed it on my Prusa MK4 with no Name PETG, 0.15mm, no supports, no rafts, 15% infill