Hello all,
my existing motor problem only occur while I was changing material but printing process, it works fine...
https://www.facebook.com/selcukfindik/videos/10154204413679191/
I think my feeder motor is not suitable...While I was building my ultimaker 2, I had chosen Pololu SY42STH47-1206A (I did not pay attetion at all ). however, its 6 leads and 4v voltage rate.
there are 4 types of "SY42STH47" motors ( http://reprap.org/wiki/NEMA_17_Stepper_motor )
and I need to know suitable version for feeder motor?
SY42STH47-1504A or SY42STH47-1684A / B
there are difference between Holding Torque and motor lenght...
Which one I need to choose?