Investigating Electromagnetic Magic in Obsolete Machines

Before the digital age, when transistors were expensive, unreliable, and/or nonexistent, engineers had to use other tricks to do things that we take for granted nowadays. Motor positioning, for example, …read more Continue reading Investigating Electromagnetic Magic in Obsolete Machines

Chocolate-Coating Machine Mk. 2: the Merry-Go-Round

A chocolate coating machine works in the round to enrobe mint Oreos.

This holiday season, [Chaz] wanted to continue his family’s tradition of enrobing a little bit of everything in dark chocolate, and built an improved, rotating chocolate-coating machine. You may remember …read more Continue reading Chocolate-Coating Machine Mk. 2: the Merry-Go-Round

DIY 3D-Printed Arduino Self-Balancing Cube

Self-balancing devices present a unique blend of challenge and innovation. That’s how [mircemk]’s project caught our eye. While balancing cubes isn’t a new concept — Hackaday has published several over …read more Continue reading DIY 3D-Printed Arduino Self-Balancing Cube