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Jolt2

David Brown released his Jolt2, an open-source split keyboard with variable-height columns.

KBD.news
Published January 19, 2025
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The Jolt2 by David Brown (aka d3zd3z) features modular columns mounted on pin headers, allowing them to be soldered at variable heights to achieve a faux-Dactyl 3D effect.

The jolt2, my 6th design, and my first exploration into having the keys at different elevation. So far, I really like it. I use this for both my custom QWERTY-based layout, and for steno – d3zd3z.

This project is an experiment beyond the traditional Corne-like keyboard design, something in 3D-space. There are individual base plates for left and right, and then small strips of 3 keys for each column and thumb clusters (the same PCB). Thanks to this modularity, the Jolt2 can support various controllers (e.g. on-board RP2040, Tiny2040 daughterboard) or, in theory, various spacings.

Pic:

Specifications

  • 42 keys (6x3+3)
  • Choc V1, hotswap
  • MCU: PCBs for on-board RP2040, Tiny2040 or Pimoroni PGA2350
  • RJ45 connectors between the halves
  • Custom Rust firmware
  • 3D-printed case

Pic:

Resources

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Published on Sun 19th Jan 2025. Featured in KBD #184 (source).


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