2 layers35 × 50 mm
2 layers144.2 × 106.7 mm
Zwerg
floookay/zwerg5a 40% ortholinear split keyboard
- Size
- 144.2 × 106.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 60
- Nets
- 49
- Pads
- 391
- Tracks, vias
- 739, 35
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 30 Nov 2024
- Updated
- 7 Mar 2025
Overview
Zwerg is an open-source printed circuit board by floookay, from the floookay/zwerg repository on GitHub, published under the CERN-OHL-W-2.0 licence. It is a 2-layer board of 144.2 × 106.7 mm with 60 parts on 49 nets, routed with 739 tracks and 35 vias.
Its parts include 25 diodes, 1 IC and 1 connector. It belongs with the keyboards and input boards and the RP2040 boards of this library.
README
readme.mdzwerg
The zwerg is a 3x6 (well technically 4x6 I guess?) split ortholinear 40% keyboard. It's heavily inspired by RGBKB.net's Sol 3 of which I own two and absolutely adore.
[!Warning]
Please note that this design only works with a slim usb-c cable/connector (5.5mm).
KLE: https://www.keyboard-layout-editor.com/#/gists/f58560b496cb75689321efaddc96187e
The typing and tenting angle can be freely adjusted in the OpenSCAD file. I printed mine with a typing angle of 2° and tenting of 5°.
what you need
- 2x zwerg pcbs (upload zwerg.zip to a pcb manufacturer)
- 2x 0xCB geminis
- 50x switches
- 50x diodes (1N4148W smd or tht)
- 2x trrs jacks
- 2x M2x3x3 heat inserts
- 2x M2 5-8mm screws
- 10x 7x1.9mm o-rings
- 8x 7x1mm bumpons
- 2x 3d-printed zwerg case halves (print with supports if needed)
- optional 2x 3d-printed zwerg plates
Building this keyboard is pretty straight forward I think. The only thing you need to look out for is that you solder all components on the same side (same goes for the mirrored pcb). Don't over tighten the screw that attaches the pcb to the case, it's supposed be screwed in lightly.
This keyboard is powered by qmk firmware, see here. Use the reset buttons on the Gemini for flashing the keyboard.
Parts
60| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | D_45deg | zwerg:D3_TH_SMD | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +9 |
| 25 | MX_SW_HS | PCM_marbastlib-xp-mx:SW_MX_Reversible_1u | MX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23 +9 |
| 5 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2, H3, H4, H5 |
| 1 | AudioJack4 | PCM_marbastlib-xp-various:CON_MJ-4PP-9_Reversible | J1 |
| 1 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad_TopBottom | H6 |
| 1 | RP2040-Matrix | zwerg:RP2040-Matrix_fb | U1 |
The 58 most common of 60 parts.
Similar boards
- 2 layers32.9 × 119.1 mm
- 2 layers35.9 × 62.7 mm
Rp2040-memcard
sd2psx/pcb
The PCB must be produced in 0.8mm thickness. Production files are provided under the "Releases" tab. These do not include the through-hole OLED module.
60 parts241 - 2 layers58 × 110 mm
- 2 layers52 × 90 mm
- 2 layers42.5 × 80 mm
- 2 layers57.4 × 12 mm
- 2 layers87.9 × 123.9 mm
Bitdoglab
BitDogLab/BitDogLab
Open-source educational hardware for embedded systems, programming, electronics, and physical computing.
60 parts203
Questions
How big is the Zwerg PCB?
It measures 144.2 × 106.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Zwerg use?
60 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Zwerg KiCad files?
From the floookay/zwerg repository on GitHub, at the commit this page was made from: the board is pcb/zwerg.kicad_pcb and its schematic pcb/zwerg.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Zwerg design in my own project?
Its repository publishes it under the CERN-OHL-W-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).