I installed the Marlin Dual Extruder Software and a dual extruder on my TAZ 4. My first extruder motor (E0) is fine, but my second extruder motor (E1) has constant current running to it even when it is not extruding. This is causing the motor to always run very hot.
We are thinking this is a defective Rambo board, but I’m open to suggestion (could it be firmware related?). Has anyone else had this problem?