Unlike the original, however, he chose to use a stepper motor ... how the gears work, how you might customize them, and how they fit together. The clock’s electronics rely on an Arduino.

What makes change gears so tricky ... first turned to an Arduino Nano to receive input from a rotary encoder connected to the shaft of the lathe and then instruct a motor to turn the feed screw ...

Makers, engineers and hobbyists who would like to automatically manufacture a variety of different size plastic gears ... a little Arduino hardware, taking the form of the plastic gear cutting ...

Researchers have now presented a solution to a challenging problem: how motion can be transferred in a controlled manner from one place to another through a 'molecular gear'. Molecular motors have ...