2 layers213 × 65 mm
2 layers425.1 × 106 mm
Lefty
RyanChomistek/lefty- Size
- 425.1 × 106 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 186
- Nets
- 127
- Pads
- 712
- Tracks, vias
- 532, 21
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 May 2025
- Updated
- 28 May 2025
Overview
Lefty is an open-source printed circuit board by RyanChomistek, from the RyanChomistek/lefty repository on GitHub. It is a 2-layer board of 425.1 × 106 mm with 186 parts on 127 nets, routed with 532 tracks and 21 vias.
Its parts include 91 switches, 84 diodes and 1 IC. It belongs with the RP2040 boards of this library.
Parts
186| Qty | Value | Footprint | References |
|---|---|---|---|
| 84 | Diode | ScottoKeebs_Components:Diode_DO-35 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +68 |
| 70 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.00u | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S19, S20, S21, S22, S25, S26 +54 |
| 10 | MountingHole | MountingHole:MountingHole_2mm | H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 |
| 4 | MX_stab | PCM_marbastlib-mx:STAB_MX_2u | S56, S57, S75, S91 |
| 3 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.25u | S79, S80, S81 |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.50u | S24, S37 |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_2.00u_90deg | S23, S61 |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.75u | S42, S73 |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_2.25u | S54, S62 |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_2.00u | S18, S77 |
| 2 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_2.25u | S76, S90 |
| 1 | Keyswitch | ScottoKeebs_MX:MX_PCB_6.25u | S82 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_6.25u | S89 |
| 1 | Raspberry_Pi_Pico | ScottoKeebs_MCU:Raspberry_Pi_Pico | U3 |
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Questions
How big is the Lefty PCB?
It measures 425.1 × 106 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lefty use?
186 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 Lefty KiCad files?
From the RyanChomistek/lefty repository on GitHub, at the commit this page was made from: the board is lefty.kicad_pcb and its schematic lefty.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lefty design in my own project?
Its repository states no licence, so its author keeps all rights: ask RyanChomistek before reusing the design.