I liked the idea of the Corne or Sweep keyboards, but I didn't like the microcontroller hanging on the side. So I designed my own with a small 7.5 degree tent (Slant), making enough room for a nice!nano and a larger 350 mAh battery to go underneath the PCB.
The case is custom designed and printed. I used Onshape to CAD the entire design, which really helped everything work together on the first try. You can find the onshape model here.
PCB and key placement were aided by Ergogen, which simplified things quite a bit. Kicad was used for the layout and routing.
This repository contains:
- ergopad/: screenshots from ergopad to help fit the physical key placement to my hand
- kicad_project/: the PCB files
- parts/: a digikey parts list
- zmk-config/: the ZMK firmware files, including keymap