Yes I have my cooling fan hooked up to Fan 0 on my Rumba, you can control it via the LCD or your slicer should also use that for the cooling fan.

Quote Originally Posted by tsteever View Post
So i want to add a fan to try printing PLA. Just curious if the Fan0 port is controlled by the firmware. That is to say, if I hook up a fan to this will it work for print cooling?