Customizable CAD Keyboard

Easy to build 3D-printed ortholinear keyboard with replaceable keycaps and QMK FW.

AdvancedFull instructions provided2 hours1,094

Things used in this project

Hardware components

SparkFun Pro Micro - 5V/16MHz

Tactile Switch, Top Actuated

1N4148 – General Purpose Fast Switching

Hand tools and fabrication machines

3D Printer (generic)

Soldering iron (generic)

Story

Description

This custom keyboard was created to speed up my 3D CAD development. My 60 most used commands are now just a click or two away. The keyboard is fully customizable, uses standard components and is easy to replicate since it does not use a PCB, instead everything is 3D printed using the 3DPCB idea.

Interactive webGL model of a section of the keyboard

Features

33 keys (5×6+3)
Easy to customize (printable keycaps with laminated paper inlay)
Anyone can build it using a 3D-printer (FFF/FDM), common components and a soldering iron.
QMK firmware (allowing advanced keyboard layout)
Replaceable keycaps – twist and release
Using common 6x6mm TACT switches
Anti-ghosting using 1N4148 diodes
No PCB required (everything is 3D printed)
Low activation force (depending on switches)
Ergonomic – half size keyboard enables shoulder width position of hands.

Bill of Materials (BOM)

1x Arduino Pro Micro (or clone)
33x 6x6mm tact switches (low actuation force)
33x 1N4148 Diodes (can be omitted, with risk of key ghosting when pressing multiple keys)
Strands of 0.3mm copper wire (from RK Cable)
PLA for 3D printer
Micro USB cable

Find all details on how to build your own custom keyboard here:

https://vonkonow.com/wordpress/2020/07/3dpcb-keyboard/

Customizable CAD Keyboard