Left
About the Left PCB
Left is an open source PCB design by nikital, published on GitHub. It is a 2-layer board measuring 310.1 × 107.2 mm, with 101 components from 15 distinct parts.
Other key parts include the MCP23018_SO. By type, the board carries 43 switches, 43 diodes, 13 resistors, 1 IC and 1 connector.
It belongs with the keyboards designs in this gallery.
Main components on the Left
Left bill of materials (BOM)
101 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP23018_SO | SOIC-28W_7.5x17.9mm_P1.27mm | U1 |
| 1 | To Right Part | PinHeader_2x02_P2.54mm_Vertical | J1 |
| 35 | SW_Push | SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW6, SW7, SW8, SW9, SW11, SW12 +27 |
| 1 | TAB | SW_Cherry_MX_1.50u_PCB | SW3 |
| 1 | CAPS | SW_Cherry_MX_1.75u_PCB | SW4 |
| 1 | CTRL | SW_Cherry_MX_1.25u_PCB | SW5 |
| 1 | L SHIFT | SW_Cherry_MX_2.25u_PCB | SW10 |
| 1 | SUPER | SW_Cherry_MX_1.25u_PCB | SW15 |
| 1 | L ALT | SW_Cherry_MX_1.25u_PCB | SW20 |
| 1 | L SPC | SW_Cherry_MX_2.75u_PCB | SW37 |
| 1 | R SPC | SW_Cherry_MX_2.25u_PCB | SW43 |
| 42 | D_Small | D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +34 |
| 1 | LED_Small | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D43 |
| 12 | 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R3, R4, R5, R6, R7, R8, R9 +4 |
| 1 | 470 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
Left design files
The KiCad project lives in the nikital/keyboard repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/left/left.kicad_pcb
Left: common questions
How big is the Left PCB?
The Left measures 310.1 × 107.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Left?
101 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Left design files?
From the nikital/keyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Left design in my own project?
The repository has no license, so all rights stay with nikital. Use it as a reference, and ask the author before reusing the design.
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