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2 layers140.3 × 101.6 mmTemporal, the printed circuit board in 3D

Temporal

curbol/temporal46

Temporal is a 36-42 key split ergonomic keyboard with wireless support. Features a breakoff pinky column and optional encoders in the thumb cluster.

Open in PCBKitView on GitHub.kicad_pcb
Size
140.3 × 101.6 mm
Copper layers
2
Thickness
1.6 mm
Parts
56
Nets
74
Pads
697
Tracks, vias
1,203, 219
Pours
56
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
24 Nov 2025
Updated
18 Sep 2026

Overview

Temporal is an open-source printed circuit board by curbol, from the curbol/temporal repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 140.3 × 101.6 mm with 56 parts on 74 nets, routed with 1,203 tracks and 219 vias.

Its parts include 21 diodes and 21 switches. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.

README

pcbs/temporal/README.md

Temporal PCB

make gen never overwrites this directory.

Why

This board is hand-routed in KiCad, and the traces and vias here cannot be regenerated. The build leaves the .kicad_pcb alone and rewrites only the .kicad_pro and .kicad_dru beside it.

How to Regenerate

Delete the folder, then rebuild:

bash
rm -rf pcbs/temporal
make gen

That recreates the directory and a fresh, unrouted board from ergogen/config.yaml.

Manual Steps in KiCad

After regenerating, route the connections Ergogen does not place. Ground planes, silkscreen text keepouts, via stitching, and zone fills are all applied by make gen before the board is copied here, so they need no manual work.

Keeping This Board Current

The post-processing steps run against ergogen/output/pcbs, so they reach this board only when it is regenerated. Editing the zones, via_stitching, or text_keepouts sections of scripts/kicad_config.yaml updates every other board and leaves this one as it was. make check fails when the pour no longer matches the custom DRC rules; a via stitching or keepout change needs a full regeneration and a re-route.

Parts

56
QtyValueFootprintReferences
21ceoloide:switch_choc_v1_v2S1, S2, S3, S4, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21 +5
21ceoloide:diode_tht_sod123D1, D2, D3, D4, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21 +5
8ceoloide:mounting_hole_npthMH1, MH2, MH3, MH4, MH5, MH6, MH7, MH8
1ceoloide:rotary_encoder_ec11_ec12RE1
1ceoloide:reset_switch_smd_sideRST1
1ceoloide:display_nice_viewDISP1
1ceoloide:power_switch_smd_sidePWR1
1ceoloide:battery_connector_jst_ph_2JST1
1ceoloide:mcu_nice_nanoMCU1

Questions

How big is the Temporal PCB?

It measures 140.3 × 101.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Temporal use?

56 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 Temporal KiCad files?

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

Can I use the Temporal design in my own project?

Its repository publishes it under the CERN-OHL-P-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).

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