Jump to content
RayLivingston

New Problem - Curling Edges

Recommended Posts

Posted · New Problem - Curling Edges

I'm doing some large prints, and have a new problem - the edges of the first few parallel perimeter layers are curling up, rather than adhering to the bed.  This means what should be a square cornder in the cross-section ends up becoming a rather large radius fillet.  The center "in-fill" layers are adhering just fine, and I don't have this problem on smaller prints I've done.  The rest of the print, which is 1/2" thick, prints absolutely perfectly.  One difference that may be a factor - I've set the Shell->Wall Thickness to 3mm.  Could that be the problem?

 

Regards,

Ray L.

Share this post


Link to post
Share on other sites
Posted · New Problem - Curling Edges

You don't say what printer or material, but here is a completely random possibility when this started happening to me recently when normally I am fighting to get PLA off the bed.

I had dual extruder set up, one PLA, one ABS. I was printing something *entirely* in PLA, but because the ABS extruder wasn't disabled, Cura heated the bed up to ABS temp (Cura, please don't do this!). Turns out PLA will adhere to a bed this hot (I think it was 85 or something), but it is reaaaal soft and tends to curl up and corners.

 

Of course, there about a zillion other reasons too.

Share this post


Link to post
Share on other sites
Posted · New Problem - Curling Edges

The printer is a modified Tevo Tarantula, and I'm printing with PLA.  Only one extruder, and using the same termperiatures I've used for many other smaller parts.  This has happened on two different larger parts, so it is a consistent problem.  Smaller parts do not exhibit this problem.

 

Regards,

Ray L.

 

Share this post


Link to post
Share on other sites
Posted · New Problem - Curling Edges

Larger parts exert a LOT more force on the corners/edges. It sounds like just a bed adhesion problem, where you have enough for smaller parts but the big ones are getting you. The usual solutions -- brims, adhesion help, more squished first layers, etc. will probably do the trick. You can get pretty big with PLA and survive it if you can get the adhesion.

Share this post


Link to post
Share on other sites
Posted · New Problem - Curling Edges

That makes sense.  I did not print a brim, as it was not necessary for the smaller parts.  I'll try one of these big ones again with a brim.

 

Thanks!

 

Regards,

Ray L.

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.
      • 98 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!