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Plum twist

rianadon·Cosmos-Keyboard-PCBs·plum-twist/plum-twist.kicad_pcb

Plum twist PCB layout, top view — open source board by rianadon

About the Plum twist PCB

Plum twist is an open source PCB design by rianadon, published on GitHub. It is a 2-layer board measuring 17 × 17.9 mm, with 5 components from 5 distinct parts.

By type, the board carries 2 connectors, 1 switch, 1 LED and 1 diode.

It belongs with the keyboards designs in this gallery.

From the project

Open-Source keyboard PCB designs for the Cosmos Keyboard Generator

Pinouts and wiring instructions: see the Plum Twist website.

To maintain compatibility with the sockets in Cosmos, make sure you manufacture these with 1.2mm thickness.

To assemble these yourself these you'll need 1x of these for every PCB:

- 1N4148 Diodes in SOD-323 Package - Kailh MX Hotswap Sockets (CPG151101S11) - SK6812MINI-E LEDs (optional and frankly not worth the time)

Plum twist bill of materials (BOM)

5 components, 5 distinct parts.

QtyPartRefs
1
Conn_01x04_Male
J2
1
Conn_01x01_Male
J6
1
MX1A
S1
1
SK6812MINI_E
LED1
1
1N4148W-7-F
D1

Plum twist design files

The KiCad project lives in the rianadon/Cosmos-Keyboard-PCBs repository on GitHub; these links point at the commit this page was built from.

Plum twist: common questions

How big is the Plum twist PCB?

The Plum twist measures 17 × 17.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Plum twist?

5 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Plum twist design files?

From the rianadon/Cosmos-Keyboard-PCBs repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Plum twist design in my own project?

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

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