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Left fingers

jakobkg·j0xx·pcb/left_fingers/left_fingers.kicad_pcb

Left fingers PCB layout, top view — open source board by jakobkg
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About the Left fingers PCB

Left fingers is an open source PCB design by jakobkg, published on GitHub. It is a 2-layer board measuring 114.3 × 40.6 mm, with 13 components from 4 distinct parts.

By type, the board carries 4 switches, 4 diodes, 4 capacitors and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

Smashbox/Frame1-inspired game controller with support for Cherry MX and Kailh Choc switches

The controller case is designed to be made out of cut sheets of material, such as laser cut wood/acrylic or metal. I recommend a thickness of 3mm for the top plate for use with low profile Choc switches, and 6mm for use with regular MX switches to ensure keycaps protrude nicely without the sides of the switches being exposed. The switch mounting plate needs to be 1.5mm thick to fit the Cherry MX/Kailh Choc design specs and ensure a good fit, thinner plates may cause poor mounting and thicker plates will interfere with Choc switch mounting.

Left fingers, from the project README
From the project README

Left fingers bill of materials (BOM)

13 components, 4 distinct parts.

QtyPartRefs
1
Conn_01x08
J1
4
SW_Push
SW1, SW2, SW3, SW4
4
WS2812B
D1, D2, D3, D4
4
C
C1, C2, C3, C4

Left fingers design files

The KiCad project lives in the jakobkg/j0xx repository on GitHub; these links point at the commit this page was built from.

Left fingers: common questions

How big is the Left fingers PCB?

The Left fingers measures 114.3 × 40.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Left fingers?

13 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the Left fingers design files?

From the jakobkg/j0xx repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Left fingers design in my own project?

The repository has no license, so all rights stay with jakobkg. Use it as a reference, and ask the author before reusing the design.

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