2 layers83.3 × 65.3 mm
SimonShield
github-linguist/linguist
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46 parts14kMIT
2 layers119.2 × 90.8 mm
Bad Temper
essFitt/Bad-Temper73This is a remix of the Temper keyboard. The point of difference is the thumb cluster, which is moved 1U away from the palm. The aim is to eliminate awkward, cramped thumb movement.
- Size
- 119.2 × 90.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 42
- Pads
- 556
- Tracks, vias
- 764, 115
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 8 Sep 2024
- Updated
- 1 Jul 2025
Overview
Bad Temper is an open-source printed circuit board by essFitt, from the essFitt/Bad-Temper repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 119.2 × 90.8 mm with 46 parts on 42 nets, routed with 764 tracks and 115 vias.
Its parts include 18 diodes, 18 switches, 1 IC and 1 connector. It belongs with the nRF52 and nRF5x boards of this library.
README
README.mdThis is a remix of the Temper keyboard. The point of difference is the thumb cluster, which is moved ~1U away from the palm. The aim is to eliminate awkward, cramped thumb movement. The build process and the materials pretty much the same as the Temper. The reset switch was swapped out for a 6mm tactile button switch. To reduce the height of the board, the PCB is not designed to accommodate a base plate. However, I have added a case that is press-fitted and, in my experience, works really well. If printing, you may need to tinker with your tolerances.
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | D | dumta:D_SMD_TH | D1, D2, D3, D4, D5, D6, D7, D10, D11, D12, D13, D14, D15, D16, D17, D18 +2 |
| 18 | SW_PUSH | dumta:Kailh_socket_PG1350_reversible | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18 +2 |
| 2 | LOGO | skulllogo:skull | G***, G*** |
| 1 | Battery_Cell | dumta:Battery_pads_reversible | BT1 |
| 1 | SW_PUSH | Button_Switch_THT:SW_PUSH_6mm | RSW1 |
| 1 | SW_SPDT | dumta:power_switch_padreverse | PWR_SW1 |
| 1 | h5 | kbd:LEGO_HOLE | h5 |
| 1 | h6 | kbd:LEGO_HOLE | h6 |
| 1 | h7 | kbd:LEGO_HOLE | h7 |
| 1 | nice_nano | dumta:ProMicro_jumpers | U1 |
| 1 | nice_view | dumta:nice_view_jumpers | J2 |
Questions
How big is the Bad Temper PCB?
It measures 119.2 × 90.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bad Temper use?
46 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 Bad Temper KiCad files?
From the essFitt/Bad-Temper repository on GitHub, at the commit this page was made from: the board is pcb/BadTemper.kicad_pcb and its schematic pcb/BadTemper.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bad Temper 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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