The neuro36 by Daniel Haarhoff (aka erkannt/mit_verlauf) is a small 36-key split keyboard optimized for travel.
I wanted a keyboard I could travel with. I need 36 keys and like to have larger keys to rest my thumbs on (probably due my journey having been Ergodox -> gergo) – Daniel.
With its low-profile case and switches, and the nice Chicago steno thumb caps, the neuro36 has definitely reached this goal.
Specs
36 keys
low profile, Choc-spaced
hotswap or soldered (on main 30 keys)
reversible PCB
Seeed XIAO RP2040 MCU
remaining pins broken out on right hand (hope was to add trackball)
low-profile printed case
press-fit travel protector
thumb keys can be soldered in either orientation
Silkscreen with real neurons (EM image taken by the author's partner)
The case is printable without supports, however, the travel protector needs them. Make sure you have good bed adhesion as a warped print will give you a wobbly case. Other than that:
I picked a very small diode footprint by accident. I'd suggest going for something larger if you are up for tweaking the KiCAD project – Daniel.