@dc42 said in Fan ON when steppers are ON, OFF when steppers are OFF:
You can also configure a fan to monitor the MCU temperature and the driver overheat warning - that's what I did on my delta:
M106 P2 H100:101 T45:55 L0.3 ; electronics cooling fan
@Moriquendi If you go this route, don't forget to calibrate the cpu temp. https://duet3d.dozuki.com/Wiki/Calibrating_the_CPU_temperature