Magnets

The Bobbinator

The Bobbinator

Linear actuators are motors that work in a straight line. They’re very useful for controlling valves and levers, building robots, and retrofitting old mechanisms for digital control. The simplest form of linear actuator has only 2 positions, while more complicated actuators can be positioned just like stepper motors and servos. I needed 32 linear actuators […]

Wind Your Own Guitar Pickups

Wind Your Own Guitar Pickups

The brilliant Meara O’Reilly describes how to wind your own electromagnetic guitar pickups on sewing machine bobbins.