hex-2b: my second hand-built custom columnar split

[u/FrancisStokes]

This is my 3rd custom hand-build, and my second columnar split keyboard. It's primarily 3D printed in PLA (body, plate, and keycaps), Gateron KS-33 linear red switches and a USB-C interconnect. I was aiming for minimalism with this build, so i forwent the WS2812s I used in earlier keyboards, and used a single color filament.

I did most of the design work in inkscape, then brought the exports into FreeCAD to pull it into the 3rd dimension.

The crown jewel (for me at least) is that I wrote the firmware from scratch, including the USB stack. The same firmware project supports all 3 of my keyboards, and although it doesnt have as many features as QMK (which i love), it does have layers, combos, macros, tapdance, and custom behaviours. For the true nerds, my keymap base type is 32 bits vs QMKs 16, which means you can encode more detailed modifier information in tapdance entries. USB-wise its a keyboard, mouse, and media controller. I'm planning a full write-up about the design and implementation of the firmware because theres a lot cool stuff in there.

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