kliment/Sprinter — pull request #104 by blddk (2011-10-16 12:59:00+00:00)
Title: Controller cooling fan

This will add the option for having an fan to cool the stepper drivers down.

Instead of having the fan on all the time, it will turn it on when any stepper driver is enabled, and then wait a defined amount of seconds before stopping it again, after all stepper drivers have been disabled again.