Brushless DC (BLDC) motors are standard fare in low-precision, speedy RC applications. The control schemes needed to run them slowly or precisely go deep into motor theory and might put these motor… ...

[BB8] decided based on no reason in particular to replace the proprietary motor controller with one based on VESC, an open-source electric motor controller for all kinds of motors even beyond ebikes.

If you are interested in 32bit grbl, a French project on MakerFr will also be worth a look, which has an isolated controller board, and what looks like a well-thought-out ‘off-line controller’ ...

‘2’ (0-10V) analogue output for spindle control, derived from pwm spindle control signal (further down this page) ‘3’ (0V) connected directlyto the cnc domain 0V. Next comes a 36V cnc domain PWM fan ...