Jump to content
entomophile

Is this a dirty nozzle

Recommended Posts

Posted · Is this a dirty nozzle

I performed an atomic clean after a lousy print with some bad under extrusion. Whenever I do it, the filament comes out with a couple of dimples like in the picture. Is this normal, or is the nozzle still dirty?

atomic clean

 

Share this post


Link to post
Share on other sites
Posted · Is this a dirty nozzle

By dimples do you mean the two holes in the filament?

Except that it looks pretty clean to me, i wonder how the two holes appeared tough

 

Share this post


Link to post
Share on other sites
Posted · Is this a dirty nozzle

Yes, I mean the two holes. There is one on the other side as well. I can't tell if they just appear as the filament stretches as I remove it, or maybe there is something in the nozzle. But I would expect if there was something in the nozzle, the holes would look like lines as I pulled the filament out over the obstruction. Or maybe it's voids in the filament? It is MatterHackers Pro Series PLA which I think is pretty good stuff. The outer surface of the filament is perfect.

 

Share this post


Link to post
Share on other sites
Posted · Is this a dirty nozzle

Yes i would assume the same as you, if it was something in the nozzle causing the holes you would not be able to pull it out with out deforming them... never seen this before. Does it happen every time?

 

Share this post


Link to post
Share on other sites
Posted · Is this a dirty nozzle

I believe it happens every time, even with other brands of filament. I still have the scraps from past cleanings. I don't have access to them now, but I'll post pictures later today.

 

Share this post


Link to post
Share on other sites
Posted · Is this a dirty nozzle

Ditto; never seen it and yes a scrape rather than a hole is more logical. We probably need a materials expert to answer this one.

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Our picks

    • Ultimaker Cura 4.0 | Stable available!
      Ultimaker Cura 4.0 is mainly focused on the improved user interface and cloud integration.
      As always, we want to collect your user feedback for this release. If there are any improvements you can think of, feel free to mention it here and help us to shape the next release.
      • 14 replies
×
×
  • Create New...

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!