3D models for printing and schematics can be found here: https://www.printables.com/model/1347100-turntable-based-on-nema-17-42-40 ...
This device created by student designers Yingjie Bei and Yifan Hu only looks like an artsy turntable, but it can't play your vinyl collection. Here's what it can do, though: show you the right moon ...
Electric guitars have several switches and potentiometers for controlling volume, tone, and which pickups are enabled. Rather than fiddling with these by hand, [Bob] built the ArduGuitar. It uses an ...