Avisos
Vaciar todo

i3 MK3S+ Extruder axis (motor) not moving  

  RSS
OferRivkind
(@oferrivkind)
Active Member
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,

Respondido : 22/10/2024 5:40 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
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

Respondido : 22/10/2024 6:35 pm
OferRivkind
(@oferrivkind)
Active Member
Topic starter answered:
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,

Respondido : 22/10/2024 7:33 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
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

Respondido : 22/10/2024 7:43 pm
Compartir: