

Fourier left
PCB files for Fourier Keyboard, a 40% split keyboard
- Size
- 124.4 × 80.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 129
- Nets
- 45
- Pads
- 499
- Tracks, vias
- 485, 25
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Jan 2019
- Updated
- 4 Sep 2020
Overview
Fourier left is an open-source printed circuit board by keebio, from the keebio/fourier repository on GitHub, published under the MIT licence. It is a 2-layer board of 124.4 × 80.4 mm with 129 parts on 45 nets, routed with 485 tracks and 25 vias.
Its parts include 4 connectors, 2 resistors and 2 ICs. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
README
README.mdFourier Keyboard PCB

Misc Info
- Rev. 1.2 added 1.25u/1u option at the inner two keys of each half, QMK support hasn't been added for those two new keys yet
- Keyboard Layout Editor: Fourier 1.2 layout
License
These files are released under the MIT License.
Parts
129| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | D | Keebio-Parts:Diode-Hybrid-Back | D_A1, D_A2, D_A3, D_A4, D_A5, D_A6, D_B1, D_B2, D_B3, D_B4, D_B5, D_B6, D_C1, D_C2, D_C3, D_C4 +8 |
| 22 | SW_PUSH | MX_Alps_Hybrid:MX-1U-NoLED | SW_A1, SW_A2, SW_A3, SW_A4, SW_A5, SW_A6, SW_B2, SW_B3, SW_B4, SW_B5, SW_B6, SW_C2, SW_C3, SW_C4, SW_C5, SW_C6 +6 |
| 6 | SW_PUSH | MX_Alps_Hybrid:MX-1.25U-NoLED | SW_B1, SW_Cb1, SW_D1, SW_D3, SW_Db3, SW_Dc5 |
| 3 | SW_PUSH | MX_Alps_Hybrid:MX-1.5U-NoLED | SW_Db1, SW_Db2, SW_Dc3 |
| 2 | 4.7k | Keebio-Parts:Resistor-Hybrid-Back | R1, R2 |
| 1 | C6 | Keebio-Parts:Single-Pad | J6 |
| 1 | Extra Data | Keebio-Parts:Single-Pad | W2 |
| 1 | GND | Keebio-Parts:Single-Pad | J7 |
| 1 | LOGO | Keebio-Art:Fourier-1.2 | G*** |
| 1 | LOGO | Keebio-Art:Fourier-Sinc | G*** |
| 1 | LOGO | Keebio-Art:Keebio-TwoTone | G*** |
| 1 | LOGO | Keebio-Art:AIRI-Logo2 | G*** |
| 1 | ProMicro | Keebio-Parts:ArduinoProMicro-ZigZag | U1 |
| 1 | RGB | Keebio-Parts:Single-Pad | J3 |
| 1 | Reset | Keebio-Parts:SW_Tactile_SPST_Angled_MJTP1117 | SW_RST1 |
| 1 | SW_PUSH | MX_Alps_Hybrid:MX-2.25U-ReversedStabilizers-NoLED | SW_Db5 |
| 1 | SW_PUSH | MX_Alps_Hybrid:MX-2.75U-ReversedStabilizers-NoLED | SW_D5 |
| 1 | SW_PUSH | MX_Alps_Hybrid:MX-1.75U-NoLED | SW_C1 |
| 1 | TRRS | Keebio-Parts:TRRS-PJ-320A | U2 |
| 1 | VCC | Keebio-Parts:Single-Pad | J1 |
The 72 most common of 129 parts.
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Questions
How big is the Fourier left PCB?
It measures 124.4 × 80.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Fourier left use?
129 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 Fourier left KiCad files?
From the keebio/fourier repository on GitHub, at the commit this page was made from: the board is fourier/fourier-left/fourier-left.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Fourier left design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).