My new taz 4 (#2) has been running well up until recently. After having 0 issues printing various objects over the last few weeks it seems the extruder stepper motor is now slipping as it tries to feed filament.
I have checked the security of all the attachment points on my extruder (Hobbled bolt, herringbone gears) and was not able to discover any loose components. When i try to extrude without the hot end attached it still slips. The Torque is currently insufficient to even feed filament into the air?
Any advice and recommendations would be greatly appreciated… As my stepper motor (& entire machine) is new I did not want to believe the stepper motor could already be malfunctioning but i see no other reason for the fault at this time. The motor rotates freely in hand with no binding as well.
I have checked the resistance for each phase on the stepper motor and it indicates 2.8ohms per phase as per the manual. Electrically the motor is fine. Does this mean my control board has died?
For those with the following problem:
Extruder Stepper motor is no longer providing sufficient torque.
Represented with the following symptoms:
- The Extruder stepper motor is slipping as it tries to feed filament.
- The Extruder without the hot end attached still slips while attempting to extrude filament into air.
- The Extruder motor rotates freely in hand with no binding.
- The resistance for each phase on the stepper motor indicates 2.8ohms per phase as per the datasheet.
- The security of all the attachment points on the extruder assembly (Hobbled bolt, herringbone gears) do not have any loose components.
Your RAMBo control board Extruder port (E0) may have failed as mine did. I have included a temporary fix below in my 3rd post for your reference.