i3 MK3S+ Extruder axis (motor) not moving
I had a few prints fail lately after a few years of good quiet printing with no mishap.
At first I thought it was the nozzle getting clogged, but after going through all the steps of checking and cleaning it I found that it is the extruder motor that sometimes stops moving at random points during a print, which results in no filament being extruded. I also had problem unloading filament lately, which would also result from the extruder shaft not turning.
The latest information I have is that I heated up the hotend and tried Settings->Move Axis->Extruder, opened the "door" and observed that there is no movement.
I made sure all electric cables are connected and I hear buzzing from the motor when I try to move it through the menu, but there is no actual movement.
I see no plastic or debris that looks like it is blocking the motor.
What else could be the cause?
Thanks,
RE: i3 MK3S+ Extruder axis (motor) not moving
the stepper motor has 4 wires, if any one breaks, the motor just quivers, in place...
maybe you have fatigue fractures in the wiring loom!
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: i3 MK3S+ Extruder axis (motor) not moving
Is there a way to test this theory?
Since there is no access to the wires on the motor's end I can't check continuity.
Thanks,
RE: i3 MK3S+ Extruder axis (motor) not moving
the motor has two coils Black and green wires connect to one coil, and red and blue connect to the other, ~
remove the plug from the motherboard connector, and use a multimeter to test for continuity,
Beware, if you move the print head, the broken wire may touch together and look ok.
If this happens you will need to undo the wiring loom, and pull on each wire, individually. this should identify which wire is faulty.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK