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Mrga
 Mrga
(@mrga)
Active Member
Clicking extruder

So, I need some help, I have been printing 2-3 hours a day for 3 weeks and the extruder sudenly started to click.First it was just one click then after some time another click,but it was nothing significant.But after a week or two it is almost constant. Sometimes on some layers extrusion is great but it still click but sometimes it simply underextrudes.Does anyone have a solution for this.(I raised the temperature 15 degrees but it still clicks and underextrudes)

Posted : 15/12/2019 5:18 pm
rmm200
(@rmm200)
Noble Member
RE: Clicking extruder

Look at your filament and see if the clicking is coming from the filament being "chewed".

If it is - you have too much back pressure. Try cleaning the nozzle (cold pulls, cleaning filament, etc".

If the filament is not chewed - check the grub screws. Too loose and the gear slipping, or one really loose and hitting something.

Posted : 15/12/2019 6:24 pm
XanderMc
(@xandermc)
Active Member
RE: Clicking extruder

I'm fighting this exact issue, If gear alignment and gear pressure seem good, check how hot the extruder motor is getting. I will watch this thread for your solution.

 

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-hardware-firmware-and-software-help/stepper-motor-rated-hours-loud-clicking-noise-after-about-40-minutes-of-printing/

Posted : 15/12/2019 11:27 pm
Mrga
 Mrga
(@mrga)
Active Member
Topic starter answered:
RE: Clicking extruder

@robert-rmm200

Do you mean this when you say chewed.

This post was modified 4 years ago by Mrga
Posted : 16/12/2019 3:55 pm
rmm200
(@rmm200)
Noble Member
RE: Clicking extruder

It is actually easier to see if you unload the filament. Tooth marks in the filament is normal - that is how it drives. Bits of plastic removed by the gear (chewed) is not good. The gear is trying to force the filament into the hot end - and can't.

From your picture - the idler screw may be too tight. Those teeth marks are pretty deep. But I don't see any  bits of plastic from the filament.

Filament alignment with the tube looks good, btw. How are the grub screws?

Posted : 16/12/2019 4:15 pm
Mrga
 Mrga
(@mrga)
Active Member
Topic starter answered:
RE: Clicking extruder

@robert-rmm200

Does this help? And the extruder grub screw is pretty tight.

Posted : 16/12/2019 4:37 pm
rmm200
(@rmm200)
Noble Member
RE: Clicking extruder

To me those teeth marks look just about right. Good grip, no chewing.

The glob on the end looks a little unusual; not the usual heat creep pattern. That is more symmetrical with a 2 mm barrel at the end.

Posted : 17/12/2019 7:10 am
Mrga
 Mrga
(@mrga)
Active Member
Topic starter answered:
RE: Clicking extruder

@robert-rmm200

So an update from what I tried to do.I tried to load filament after taking these pictures and it was still clicking but the servo wasn't skipping(  just copy the link),so I tightened the idler screw while the filament was loading and it changed the click from a light click and no servo skip to a deep click and servo skip().Any clues of what that could be.Maybe it's just user error I don't know.

This post was modified 4 years ago by Mrga
Posted : 17/12/2019 2:34 pm
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