HardLabs

LeftHandV5

jmfb·CustomKeyboard·PCBs/LeftHandV5/LeftHandV5.kicad_pcb

LeftHandV5 PCB layout, top view — open source board by jmfb

About the LeftHandV5 PCB

LeftHandV5 is an open source PCB design by jmfb, published on GitHub. It is a 2-layer board measuring 169.5 × 138 mm, with 36 components from 6 distinct parts.

By type, the board carries 6 relays and 5 fuses.

It belongs with the keyboards designs in this gallery, and the repository also holds 2 earlier revisions of it.

From the project

Custom Keyboard Files

I took a prefabricated tenkeyless PCB and used a dremel to cut it into 3 pieces: - Left hand board (jagged cut at F5, 6, T, G, B) - Right hand board (jagged cut at F6, 7, Y, H, N) - Arrow keys

I proceeded to use the dremel to sever all PCB traces for the keys but left the diode traces. Cherry MX brown switches were then directly mounted to the PCB. Note that these switches were the ones designed to be plate mounted (did not include the extra two plastic pegs for direct PCB mounting) so the keys ended up looking crooked.

LeftHandV5 bill of materials (BOM)

36 components, 6 distinct parts.

QtyPartRefs
1
DB25_Female
DB25
20
SW_DIODE
ESC1, KEY_A1, KEY_B1, KEY_C1, KEY_D1, KEY_E1, KEY_F1, KEY_G1 +12
5
SW_DIODE
F1, F2, F3, F4, F5
6
SW_DIODE
K1, K2, K3, K4, K5, K6
2
SW_DIODE
LEFT_CTRL1, LEFT_WIN1
2
SW_DIODE
LEFT_SHIFT1, LEFT_SPACE1

LeftHandV5 design files

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

LeftHandV5: common questions

How big is the LeftHandV5 PCB?

The LeftHandV5 measures 169.5 × 138 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LeftHandV5?

36 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the LeftHandV5 design files?

From the jmfb/CustomKeyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the LeftHandV5 design in my own project?

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

More boards in CustomKeyboard

Earlier revisions in the repo: LeftHandV4, LeftHand

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