[Raynerd] wanted a new spindle for his CNC machine and thought that a brushless DC motor would be a great ... A general RC Vehicle electronic speed control and a servo tester work in conjunction ...

[Jeroen] built his spin coater out of a brushless DC ... motor controller, and an ESP32. A rotary pushbutton and an OLED form the user interface, allowing the user to select the speed and spin ...

En route to getting the off-the-peg DC-51 motor speed controller to better suit my small milling machine, I had a go at working out what the circuit is. Approx circuit of DC-51 motor speed controller ...