Prusa i3 Mk2, RAMPS 1.4, Marlin v2, Arduino MEGA
When retraction command is sent to the printer it extrudes at low speed instead of retracting. Any ideas?
Extrusion works fine while printing and it looks like the motor is unable to reverse the direction.
I did not try to replace the motor or the driver yet, it will be the next step unless someone can recommend a simpler solution.
I found this thread [
forums.reprap.org] but there were no updates since 2015.
