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Chrumm 1.0

Severin Meyer published Chrumm, a gorgeous unibody split with flexible PCB and fixed tenting.

KBD.news
Published October 6, 2023
Creators! Feel free to tip me off about your keyboard related projects to bring them to 100K readers.

Severin Meyer aka sevmeyer/summific shared all the design files of the this cool DIY keyboard project: [x|Chrumm] is a mouth-watering unibody split with built-in tenting.

Chrumm is an open-hardware ergonomic keyboard, made of a 3D-printable body, a bendable PCB, and custom firmware for the Raspberry Pi Pico – sevmeyer.

Pic:

Specs

  • 64 keys (60-70)
  • MX, soldered
  • reversible, flexible PCB with break-off outer column
  • encoder
  • Raspberry Pi Pico controller
  • custom firmware written in C

Pic:

Build stats

  • Printer: Prusa Mini+
  • Total print time: 35h
  • Total filament: 300g PLA
  • Filament for supports: 9g (3%)
  • Flubs and blunders: Various
  • Switches: 64x Kailh Fried Egg (silent linear)
  • Keycaps: Akko WOB Building Blocks (MDA profile)

The palm rests are part of the build. They consist of 3D printed shells, with artificial leather glued on top. The shells have a groove to neatly tuck in the leather on the side. More info on this on GitHub.

Yay, and kbd.news is credited in the repo. Thanks!

Resources

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Published on Fri 6th Oct 2023. Featured in KBD #138.


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