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Cura fills internal hole


AGrau95
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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

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    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.

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    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.

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    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
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    Posted · Cura fills internal hole

    It was already unchecked

     

    image.thumb.png.49d45454fec4c8a18be8f46fca0e50a8.png

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    Posted · Cura fills internal hole

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

     

    Unchecked.JPG

    Checked.JPG

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    Posted · Cura fills internal hole

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

     

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    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!

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    Posted · Cura fills internal hole

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

     

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