Yesterday I install a new closet door in our front entrance hall, and discovered a problem which I then solved with 3D Printing. Read more...

With the 50W QRP amplifier project coming along nicely, I felt it was time to start thinking about a reproducible case for the project. Read more...

This weekend I've added the pinion gears to the seven-segment display, and performed the first test rotation of the mechanism. Read more...

The heart of the seven segment display is the seven drive gears with select teeth, which share a common shaft and all rotate together. Read more...

Over the weekend, I got started on a project I’ve been musing about for a few months – making a mechanical 7-segment display, using gears to move individual segments in and out of the display area via rotation of a central shaft or belt. Read more...

In my experiments with Fusion360 recently and casting around for inspiration, I stumbled across my old copy of Godel, Escher, Bach: An Eternal Golden Braid, which has a curious cover design consisting of two objects that cast shadows of three different letters along three different axes. Read more...