3D Printing @lemmy.ml Prismo @lemmy.world 1 yr. ago

Help with intermittent extrusion issue

Discover the magic of the internet at Imgur, a community powered entertainment destination. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and so much more from users like jamidodger99.

Normally slopes on my prints look fine, but recently I’ve been getting bad extrusion on some prints but not all. Same materials, same print file. Could this be one of the motors starting to fail? Printed on an ender 3.

Edit: so changing the POM wheels did nothing. However, I did notice while printing the layers weren’t cooling as much as they should before the next layer started. So maybe there could be a fan issue.

16 comments

When you say same print file, I assume you mean the same gcode, same printer physical location, etc?

Is it consistent and repeatable? For example, what happens if you print the same file back to back?
- Yes to everything in the first sentence. It’s not consistent, maybe 1 in three come out perfect, then the others turn out badly.
  
  Maybe the inconsistency is in the filament? Could you try another? It could be that the diameter of the filament varies and causes this issue.
  
  Does your nozzle touch your endstop or does something else? I wonder if you're having an inconsistent first layer. That can mess up my top layer and it wouldn't surprise me if it also impacted overhangs.
Looks like a weird extrusion issue, is your ender 3 completely stock?
- It has a Bigtreetech SKR mini E3 V3, but stock otherwise.
  
  Have you checked the extruder arm? They tend to crack. Although this looks more like overextruding rather than under, which you would expect if the arm was cracked. Still worth to check it out though

You've viewed 16 comments.