20/20 Split keyboard|Handwired, Hotswap, Wireless
Print Profile(1)
Bill of Materials
Description
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A wireless split keyboard with hotswap and NO PCB.
- GitHub (files, firmware, docs):
- Build video
This is one of the simplest ways to get into custom keyboards without dealing with complicated PCBs or expensive kits.
You get full split ergonomics, or snap it together with magnets and run it as a compact 40% board.
Why this is different:
- No PCB required (fully handwired)
- Wireless (Nice!Nano / nRF52840)
- Hotswap (no soldering switches)
- Magnet system to combine both halves
- Actually buildable, not just a showcase
What you get:
- Fully printable case
- STEP files (edit / remix freely)
- Build manual + wiring guide
- ZMK firmware setup
- Full build video
BOM
| # | Item | Qty | Link |
|---|---|---|---|
| 1 | Cherry MX Switches | 48 | AliExpress |
| 2 | Pro Micro nRF52840 (Nice!Nano v2 clone) | 2 | AliExpress |
| 3 | MX Hotswap Sockets | 48 | AliExpress |
| 4 | 1N4148 Diodes | 48 | AliExpress |
| 5 | M2 × 10 mm SHCS Screws | 4 | Bambu Lab |
| 6 | M2 × 4 mm SHCS Screws | 4 | Bambu Lab |
| 7 | M2 × 6 mm Standoffs | 4 | AliExpress |
| 8 | 4 × 2 mm Round Magnets | 6 | Bambu Lab |
| 9 | Kapton Tape | 1 | AliExpress |
| 10 | Copper Wire | 1 | AliExpress |
| 11 | 801350 3.7 V Li-Po Battery | 2 | AliExpress |
| 12 | Slide Switch (on/off) | 2 | AliExpress |
| 13 | EVA Foam (optional, recommended) | — | AliExpress |
| 14 | JST Battery Connectors (optional, recommended) | — | AliExpress |
If you’ve been putting off building a keyboard because it feels too complex, this removes most of that friction.
More info:
- GitHub (files, firmware, docs):
- Build video
Enjoy printing!
Click here to see my other designs.
Documentation (1)
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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