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Cura 2.3.1 not recognizing holes

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Posted · Cura 2.3.1 not recognizing holes

Cura 2.3.1 is not recognizing vertical holes (stopped and full) in object.

These holes are recognized in earlier versions of Cura.

Curiously these holes are recognized when the object is turned through 90 degrees in Cura 2.3.1 (this is not a practical orientation in which to print the object).

This problem needs to be fixed.

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Posted · Cura 2.3.1 not recognizing holes

can you check in the view mode (left on your screen, eye) the x-ray, to see if there is something in your CAD model invalid.

second you can check what settings are enbled/disabled in the Mesh fixes (preferences-settings)

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Posted · Cura 2.3.1 not recognizing holes

Nothing comes up in x-ray mode, no boxes are ticked in Preferences - mesh fixes.

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Posted · Cura 2.3.1 not recognizing holes

Can you post your STL and/or a screenshot in Cura so we can see exactly what is happening?

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Posted · Cura 2.3.1 not recognizing holes

then tick the 'union overlapping volumes', if that doesn't help, try the others one by one.

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Posted · Cura 2.3.1 not recognizing holes

I have been through all the Mesh fix options without success.

Here are some screenshots.

[media=31499]

[/media]138pic2.thumb.JPG.1c86eb9ad0900b8b1529b53c6ada895f.JPG

138pic1.thumb.JPG.9f656c9ba23dd5cb4224bef704756db3.JPG

I cannot find out how to attach the stl file.

138pic2.thumb.JPG.1c86eb9ad0900b8b1529b53c6ada895f.JPG

138pic1.thumb.JPG.9f656c9ba23dd5cb4224bef704756db3.JPG

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Posted · Cura 2.3.1 not recognizing holes

First thing I see is your faces are reversed. That's why it shows red on the top of the object when laying flat.

When you view it in x-ray mod, do you see any red areas then? Those are manifold errors.

Did you design this in SketchUp? If so, install the Solid Inspector2 and use it to check and fix your model.

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Posted · Cura 2.3.1 not recognizing holes

Thank you DaHai8 - this has cured the problem but also leaves me wondering quite what is going on.

No red appeared in X-ray mode.

I use Cinema 4D.

I reversed all the normals on the main body (not the holes) which were showing all facing the same way, which fixed the problem, but again when in Cura one of the large flat faces is showing in red suggesting it thinks the normals on the two large surfaces are not facing the same way (inward/outward).

I am surprised turning through 90 degrees should have any effect on a problem like this, and why do earlier versions of Cura not have a problem?

Thanks for the help.

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