Split Typematrix 2022

A Typematrix 2022 style autogenerated keyboard

Layout

The Typematrix 2022 was one of the first ortholinear ergo keyboards and arguably the best layout ever made [citation needed]

See An evaluation of the TypeMatrix ergonomic keyboard

left	right
backside	backside

The interesting thing about this keyboard is that it's a declarative design:

• Layout is declared using Ergogen.
• The build system uses Ergogen to translate YAML to a KiCad PCB and plate files for FR-4 fab or laser cutting
• uses kicad-automation-scripts and FreeRouting to automatically route the traces on the PCB
• uses KiKit to render PCB previews (see top of this file) and production-ready Gerber files

Features

• Typematrix 2022 inspired split layout
• Kailh Choc PG1232 choc mini, ulta low profile key switches
• Nice!nano optimised, but any promicro should work (bottom up)
• Nice!view support

Todo

• Remove clutter and unnecesary outlines
• Top plate generation
• Bottom Plate (Thick PCB with cutouts for all components placed at the bottom. Optimised for maximum thinness)
• Remove or document magic numbers
• Backlight
• 3D models for 2x1.5u big enter key caps
• SMD footrints
• Better nice!nano footprint, steal from https://github.com/bstiq/nice-nano-kicad
• Middle bracked PCB with touchpad (Holds both halves together rigidly)
• Align board edges with actual keycap size
• stabilizer cutouts (Kailh says stabilizers are not supported for PG1232! 😟) Needs more research... Thanks https://github.com/jasonhazel for measuring the ChocFox WOB 3u spacebar stabilizer spacing. (40mm)

How to

If you would like to modify this:

• fork it
• change input/config.yaml to your liking
• push your changes; the build.yml GitHub Workflow will pick it up, autoroute and generate Gerbers, all in a zip file. See https://github.com/soundmonster/samoklava/actions
• or:
  • make sure to have Docker CLI and NodeJS installed
  • run make setup clean all
  • check the output folder for KiCad PCBs and Gerbers

See the workflow or the Makefile for more details.

Disclaimer

Work in progress!

Based on the work of Soundmonster https://github.com/soundmonster/samoklava/

Requires ergogen 4.x

Only connect battery if a nice!nano board is used!