Went from water cooled to air cooled and the spindle fan noise is uncalled for haha. So in great fashion I snapped the fan off the spindle and 3d printed this and inserted a AC Infinity fan on top
I have a CNCDepot RM40 and the fan is pretty loud on that too. You can connect the wires going to the fan through a relay, so the fan only comes on when the spindle is running.
I use output 5 with SpindleBrakeRelease logic (CNC12).
It’s on relay 2 already.