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3D printed fractal vise

3D Print A Fractal Vise That Can Hold Odd Shapes

If you were on YouTube in June 2021, there’s a good chance you were recommended the video “Rare Antique Fractal Vise [Restoration]” by Hand Tool Rescue. The video showed a unique vise patented in 1913, and for most of us, it was like nothing we had ever seen (below). It immediately gained traction, receiving over 12 […]

Smart3: The Self-Solving Rubik’s Cube

Smart3: The Self-Solving Rubik’s Cube

In the summer of 2015, I went to my first Maker Faire, in Tokyo, Japan. Afterward, I could only think about the challenge of making something. It moved me so much that I left the company where I worked as a programmer for 16 years and became a full-time maker. I challenged myself to create something […]

A Can Full of Tone

A Can Full of Tone

Vintage Gibson electric guitars had a special circuit for modifying the sound of the pickups: the Vari Tone (Figure A). You could set the knob to get six different guitar sounds, from a funky nasal tone to a full-bodied sound. Here’s an effects box version of that famous circuit for your own guitar that you can build […]

Recreating Galileo’s Sector

Recreating Galileo’s Sector

The sector, also known as the compass of proportion, is a fun and easy-to-use calculating device that uses the power of geometry to perform a variety of useful math jobs. Although at first glance a sector might seem as quaint and old-school as a slide rule, it can do at least a few maker-style jobs better, faster, […]