Hi all!
My school has owned an Ultimaker 2 for almost a year now, and thus far I've been able to fix any issues which have come along (I've owned a Solidoodle for almost 3 years now so I'm not new to hobbyist 3D printers). Recently, however, the UM2 has developed an issue which I am completely stumped by:
About 10 minutes after being turned on the extruder motor clicks and skips steps with or without filament. This happens regardless of whether the printer has been operated or idle (it does start earlier if trying to print something) and persists until the printer is turned off and on agai