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2 layers97.5 × 79.2 mmDotom, the printed circuit board in 3D

30/32-key unibody split keyboard

Size
97.5 × 79.2 mm
Copper layers
2
Thickness
1.6 mm
Parts
21
Nets
17
Pads
152
Tracks, vias
336, 33
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
26 Aug 2026
Updated
2 Sep 2026

Overview

Dotom is an open-source printed circuit board by snyokang, from the snyokang/dotom repository on GitHub. It is a 2-layer board of 97.5 × 79.2 mm with 21 parts on 17 nets, routed with 336 tracks and 33 vias.

It belongs with the keyboards and input boards of this library.

README

README.md

dotom-logo

dotom-front

Overview

dotom is a 30/32-key unibody split keyboard. A trackpad may be added between the key matrices (future works).

Features

  • Wired, RP2040
  • Rectangular design
  • 8° splay on pinky, 13° on ring
  • Reversible PCB, smaller than 102mm x 102mm
  • Diodeless (4KRO)
  • KLP lame keycaps only
  • Trackpad (not yet implemented)

Pictures

30-key (not tested, or implemented)
16 keys placement in Haewood graph for diodeless design
Routing plan (right side mirrored)
JLCPCB website preview

Reference

Parts

21
QtyValueFootprintReferences
16ceoloide:switch_choc_v1_v2S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S20, S21, S22, S23, S24, S30
4ceoloide:mounting_hole_platedH1, H2, H3, H4
1nice_nanoMCU1

Questions

How big is the Dotom PCB?

It measures 97.5 × 79.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Dotom use?

21 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 Dotom KiCad files?

From the snyokang/dotom repository on GitHub, at the commit this page was made from: the board is kicad/dotom.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Dotom design in my own project?

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

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