A mechanical keyboard that's compatible with the Sinclair ZX81, as well as the ZX81+38 modern recreation of that machine. This repository contains all the design files as well as various exported versions and images. Please carefully review any files before you use them to order hardware!
The KiCAD files for the schematic and layout are provided. The export directory contains PDF versions for convenient online viewing. The gerbers directory contains the exported gerbers I generated for an order of five PCBs from JLCPCB.
The custom keycaps were ordered via wasdkeyboards: https://www.wasdkeyboards.com/61-key-custom-cherry-mx-keycap-set.html
In the keycaps directory there are two versions of the SVG files, based on the template provided by wasd. The "paths" version has been converted to paths and is suitable for submitting for an order. The other version keeps the text elements as text for easier editing, but must be converted to paths before using for ordering.
The ZX81+38 project is a modern recreation of the ZX81 mainboard using 74xx series ICs, similar to the ZX80, instead of the (no longer manufactured) ULA used in vintage ZX81s. Check it out:
https://github.com/mahjongg2/ZX81plus38