Assembly Overview

The PolyKybd Split72 can be assembled in a few different ways depending on how much of the build you want to do yourself.

Your options

Kit (recommended for most people)

A kit containing all parts and pre-assembled PCBs is planned via CrowdSupply. Sign up to be notified when it becomes available:

crowdsupply.com/polykybd/polykybd

The kit includes the PCBs with all SMD components already soldered, so you only need to assemble the mechanical parts.

Partial DIY

Order PCBs assembled from a PCB manufacturer (JLCPCB, PCBWay, etc.) using the gerber files and BOM in the repo, then 3D print the case and stems yourself.

Full scratch build

Build absolutely everything from source — order bare PCBs, source all components individually, print all parts. This is for experienced builders who want full control.

Caution

The full scratch build requires SMD soldering experience. The PCB has fine-pitch components including the RP2040, FPC sockets, and more. If in doubt, order a pre-assembled PCB.

Build video

A full build video is available on YouTube:

Watch the build video →

What you will need

Before starting, gather all required parts. See the full Parts List for details.

At a high level you need:

• Left and right PCBs (assembled)
• Left and right aluminum plates (1.2mm)
• Left and right 3D-printed cases
• 72× key switches (MX-compatible)
• 72× custom 3D-printed key stems
• 72× 0.42” OLED displays with FPC cables
• 72× transparent relegendable keycap covers
• 2× (optional) 0.96” status displays
• USB-C cables (one short for between halves, one for the computer)
• 8× M3×10 hex screws and M3 hex nuts

Next steps

1. Read the full Parts List
2. Order your PCBs or wait for the kit
3. Print or order your Case & Spacer
4. Prepare your Displays
5. Choose Compatible Switches
6. Follow the Step-by-Step Build Guide