Jump to content
alaschgari

Problem with material PLA, 3mm

Recommended Posts

Posted (edited) · Problem with material PLA, 3mm

Hello community,

we have difficulties to get a clean print result with PLA, 3mm material. The extruder prints very thin and no clean lines, but more or less dots...

DSC_5253.thumb.JPG.e68274f8a4d8eb788cf3eff90b561cbe.JPG

What could be the problem?

Cheers,

Aljoscha

DSC_5253.thumb.JPG.e68274f8a4d8eb788cf3eff90b561cbe.JPG

Edited by Guest

Share this post


Link to post
Share on other sites
Posted · Problem with material PLA, 3mm

It's hard to say for sure but I'd say 90% likely it's underextrusion. It's hard to say because you get something slightly similar if after leveling the nozzle is too far away from the bed. That issue should only affect the bottom layer.

So assuming this is underextrusion, the most common cause is printing too cold or too fast. 220C at .2mm layers at 30mm/sec is nice and slow and safe speed to try initially. Your temp sensor could be off by 10C so you could even try 230C.

However I'm going to guess that in this case you have a different issue. I'm going to guess that the filament is partly stuck in the bowden tube. You may have ground down the filament and created a little flap of filament that then entered the tube and got stuck in there. Not sure. Or maybe your filament is too large (e.g. 3.01mm is too large, 2.85 is normal).

I would power cycle the machine to ensure the feeder motor is off, then heat the nozzle to 180C, then once it is at that temperature I would pull the filament out manually out through the stepper. This should be easy with only 1 or 2kg of force needed. Inspect the filament visually. If it takes more force - say 5kg, then something is wrong. If you can't get it out at all then likely it is stuck in the bowden. You may have to remove the bowden - there are small clips that need to be removed, then push down on the bowden holder while lifting on the bowden.

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.
      • 96 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!