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Extruder struttering at normal speeds  

Active Member
Extruder struttering at normal speeds

Hello everyone,

I am troubleshooting a used MK3S+(~1 year with limited use). The extruder is audibly clicking and grinding on the filament, the extrusion is uneven:

The issue is:

  • occuring while loading the filmant, so Im confident that it isnt a issue with the slicer
  • occuring reagrdless of how much the second extruder gear door is tightend
  • not noticeable when the extruder is moving slow(e.g. the turning it with the Settings>Turn Axis-Menu of the printer)

Hotend temp is 215°C. Pushing the filament through the hotend by hand works fine.

Things I tried to solve the issue:

  • tightening the little screw on the main extruder gear. This lessend the issue considerably, but I cant tighten the gear any further:(
  • cleaning the the gears
  • adjusting the tension on the extruder door
  • diffrent filaments(even the included one/all PLA)
  • cleaning the hotend
  • the "Extruder noisese" Article

Please let me now if additional info is needed.

Thanks in advance for any help


Veröffentlicht : 27/06/2022 8:40 pm
RE: Extruder struttering at normal speeds

Have you checked that the Bondtech idler gear bearing spindle is supported at both ends? It's a bit short, and one end can slip out of it's support.

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

Veröffentlicht : 27/06/2022 9:57 pm
Gurīn gefällt das
New Member
RE: Extruder struttering at normal speeds

Clicking extruder for me has always been a clogged nozzle.  It often starts clicking randomly during a print...then stops.  I can often manually push filament through at the start of this.  Next print, it starts again, eventually clogs.
New nozzle has always fixed it for me.  I say new since I use Nozzle X which, A) should not clog, but...B) when it does, cold pulls, needle poking is not recommended as it will wreck the coating/treatment on the nozzle and it will certainly clog easier again.  A bit of a catch 22 for sure.

If you are using a plain old brass nozzle try the cold pull method here Mk3 Cold Pull.

Hope that helps!

Veröffentlicht : 27/06/2022 10:57 pm
Gurīn gefällt das
Active Member
Themenstarter answered:
RE: Extruder struttering at normal speeds

Thank you for you feedback. 

I did check the spindle alignment, its supported on both sides. 

I also did a cold pull, the result seems clear. 

Unfortunately both doesn't solve the problem, it seems to be something else. I will upload a video of the behavior when I am back at home. 

Veröffentlicht : 28/06/2022 12:49 pm