Jump to content
Ultimaker Community of 3D Printing Experts
  • Sign Up
AGrau95

Cura fills internal hole

Recommended Posts

Posted · Cura fills internal hole

Good morning all. I'm trying to print this simple piece but when I slice it the internal hole gets filled by Cura as if it didn't exist.

 

The model is watertight.

 

I tried also to disable Union overlaping volumes without results.

 

Can somebody point me in the right direction?

Cura1.PNG

Cura2.PNG

Cura3.PNG

Cura4.PNG

TRD_spiral_stairs.stl

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

Well I see no red in your xray view which is great.  so it's the "normals".  Each triangle in the STL file has a "normal" which tells cura which side of the triangle is air and which side is solid part.

 

I have 18 solutions but it would be easier if you told me what CAD you used.  Or if it you got this from someone else.

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

Ah.  Okay - so just run it through a repair service.

 

netfabb free repair service is here (you have to create a free account first):
https://service.netfabb.com/login.php

Here's another service - drag and drop mesh repair service:
https://3d-print.jomatik.de/en/index.php

 

 

Also - don't use raft.  Ever.  It's an old technology that is only needed with obscure materials like PEEK and even then shouldn't be used.

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

Thank you for your time, I tried your suggestion, but the problem persists.

 

I also tried to remesh it with blender. Same results.

Share this post


Link to post
Share on other sites
Posted (edited) · Cura fills internal hole

As this model doesn't have any issue as well as I don't have any problem to slice it. I think you have activated in your profil the option Mesh Fixes-> Remove All Holes.  Uncheck this option to get the right result

Edited by Cuq

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

In my case Cura 4.6.1 Your model with the option Unchecked /Checked

 

Unchecked.JPG

Checked.JPG

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

An other origin to your issue can be in the section Experimental  -> Make Overhang Printable     

 

  • Like 2

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

Thank you so much, this was the issue. I may have left it checked when I was toying around. 😄

 

Have a nice day!

Share this post


Link to post
Share on other sites
Posted · Cura fills internal hole

@cuq - nice find!  I guess we should have asked him for his 3mf project file!

 

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...