Summary

Based on my Eyetooth keypad, I got a request for a keypad with a Ideazon Merc style layout.

This build used Cherry MX red keys. The top uses cheap 3mm inserts. The halves are held together with 3 x 12 mm screws. The countersunk holes are supported by a thin layer that must be drilled out or simply punched through.

Accompanying firmware and build instructions are available on github

The CAD files are available on Onshape

The keycaps shown were sla printed using the excellent KeyV2 by rsheldiii .