This is a automatic coil winder to make coils for electric instruments and was built primary to build single coils for the Melodic Chimes project.

This image shows the start of a single coil (black bobin). The oblong part on the bottom of the rigging contains neodymium magnets for the hall effect RPM sensor.

The winding motor is a 1000RPM gear head DC motor. In retrospect, a 3-phase brushless motor (BLDC) should of been used since the motor controller can set precisely speed and the BLDC motors operate with greatly reduced vibration and noise.

The indexer rides up and down as the coil winds to help create tightly packed and event windings.

Using the control panel the user can set the motor RPM, number of revolutions, the indexer start and stop heights, and more.

The control panel wiring is straigh forward and the LCD connection is made simple by using a I2C adapter interface.

A quick board was spun up using DipTrace.

The microcontroller is a Arduino Nano.

Under the control panel the PCB is secured.

Prototyping occured using a breadboard and custom button/LED breakout board.

The project was success and I was able to easily wind the pickups required for the Melodic Chimes project.