Do you have your fan wired to the control board or are you just controlling it manually? I know S3D has options for controlling the fan speed via the gcode.
I have the part cooling fan controlled by the RAMPS board. It turns on and changing speed depending on what it is printing, such as bridges, overhangs, etc.
Qidi X Plus 3 Paper thin first...
Yesterday, 01:15 AM in General 3D Printing Discussion