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Johannes Neyer made a 36-key ergo split with 4P4C connectors between the halves.
Published September 14, 2023
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This noname ergo split by Johannes Neyer (aka Pinsl), yet another 36-key one this week, has noticeable characteristics: the rarely seen 4P4C connectors.

I was lurking on this subreddit [r/ergomk] for a while, searching for a build guide that would fit my needs. As I did not find what I was looking for, I set out to build it myself – Pinsl.

Designed using KiCad and OpenSCAD, it was inspired by Thomas Haukland's cheapino, and comes with a nice 3D-printed case.


The single MCU approach of the cheapino was abandoned because it would need a thicker and therefore more rigid cable, and also an even bigger connector.


  • 36-key layout
  • reversible PCB
  • hotswap sockets
  • RP2040 Zero
  • 3D printed case
  • 4P4C cable to connect the halves


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Published on Thu 14th Sep 2023. Featured in KBD #202309 (source).


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