Man solves ceiling fans' most annoying problem

Technology Engineering Man solves ceiling fans' most annoying problem His 3D-printed device finally shows a ceiling fans' speed. Breakthroughs, discoveries, and DIY tips sent six days a week. Anyone who's used an overhead ceiling fan knows it can be a pain to work. Yanking its chain gets the motor running, but there's no easy visual indication of what speed setting the fan is on. The blades can also take a frustratingly long time to reach their full speed.