Arduino Stepper broken on UM+

[funkydrgonzo 0]

the stepper to EXT1 smoked dead. Now i want to use EXT2 to control the Extruder because i only have one. How can i manage that? playing around with "selectExtruder"plugin does not work for me because of a MaxTemp Error (of course , i don't have a 2nd temp sensor)

Is there a way to change the arduino port from EXT1 to EXT2 to avoid buying a new controller?

[peetersm 124]

hopefully you'll fix what ever smoked the EXT1 so you don't do the same to EXT2.

what if you also moved the PT100 and Heater connections over to corresponding the 2nd head spots on the circuit board?