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2 layers237.5 × 85.5 mmHands, the printed circuit board in 3D

A keyboard for myself

Size
237.5 × 85.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
87
Nets
57
Pads
371
Tracks, vias
378, 37
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
14 Jan 2025
Updated
3 Jun 2026

Overview

Hands is an open-source printed circuit board by aizuknight, from the aizuknight/hands repository on GitHub. It is a 2-layer board of 237.5 × 85.5 mm with 87 parts on 57 nets, routed with 378 tracks and 37 vias.

Its parts include 41 diodes, 36 switches and 1 IC. It belongs with the RP2040 boards of this library.

README

README.md

hands

hands is a keyboard which has 36 keys in total. I had been struggling with touch typing on QWERTY + row staggered keyboards. They are literally inefficient to type with, especially special keys like ESC, Shift, Ctrl, Back Space, Enter/Return and arrow keys. I had to forcely extend my fingers or move my hands. That's very annoying and tiring. hands solves this problem with split thumb keys and "Tap and Hold".

Parts

87
QtyValueFootprintReferences
41D_Smallkbd:D3_SMD_v2D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +25
34SW_Pushkbd:CherryMX_HotswapSW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +18
9MountingHole_2.2mm_M2MountingHole:MountingHole_2.2mm_M2M2, M2, M2, M2, M2, M2, M2, M2, M2
2SW_Pushkbd:CherryMX_Hotswap_1.5uSW33, SW36
1XIAO-RP2040-DIPSeeed Studio XIAO Series Library:XIAO-RP2040-DIPU1

Questions

How big is the Hands PCB?

It measures 237.5 × 85.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Hands use?

87 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 Hands KiCad files?

From the aizuknight/hands repository on GitHub, at the commit this page was made from: the board is pcb/hands.kicad_pcb and its schematic pcb/hands.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Hands design in my own project?

Its repository states no licence, so its author keeps all rights: ask aizuknight before reusing the design.

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