Geeetech

probably just a silly question but have you installed a stepper driver for E2 as the pro b only comes with 4 stepperdrivers

I have the same problem, I'm not getting any power from the GT2560 for the second extruder, both hotends works fine, very annoying and still looking for a solution, will be keeping an eye on your post for a solution, good luck

Yes done all that, have scrutinised configuration.h can not find anything wrong, starting to think faulty board

Hi everrybody
I have a problem with my I3 pro b, added 2'nd extruder everything works fine except can not get the extruder motor to run
(hot end works fine) have tried different firmware including the one for Pro C,
I also have a Tevo Tarantula that I upgraded to dual extruders without any problems ...