Don Johanneck

Discover how the XRP CoreXY chessboard prototype evolved with improved durability, lighting effects, and a compact transportable design.

Discover how to use transparent PLA and embedded LEDs to create stunning diffused lighting effects in 3D printed projects.

Make learning Morse code easier by standardizing the DITs, DAHs, and spaces, while an optional microcontroller and display shows the decoded ‎characters.

Flip-flops and logic gates have the ability to do heavy lifting quickly and efficiently allowing intelligent timing operations without a ‎microcontroller.

3D printing provides many benefits including resurrecting old or obsolete mechanisms.