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Cura slices model incorrectly, unwanted holes

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Posted · Cura slices model incorrectly, unwanted holes

I trying to print model of a skull, so there's what's happening:

This is how old Cura 15.02.1 slices it, I like everything except the supports:

0ab79dee7ae962a0485f9d6d2275b4c2.png

This is how latest version of Cura, 15.06.03, sliced it. I like supports and dislike everything else:

b8d3a205adcf7a5d7a883e03ccfeb1f8.png

Any idea how to overcome this?

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Posted (edited) · Cura slices model incorrectly, unwanted holes

Try some curas in between. The old cura had awful supports, im using 15.02.01 or something and staying away from the new cura as its still beta in my opinion and the interface is too slow for me.

Edited by Guest

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Posted · Cura slices model incorrectly, unwanted holes

The layer view doesn't show a full g-code in the new cura. Try saving the g-code and open it in old cura (or another g-code viewer)

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Posted · Cura slices model incorrectly, unwanted holes

Nope, Gcode loads in older version with holes too... It seems that slicer uses intersection mode of merging, instead of union, deleting everything that intersects each other in the mesh.

I'll use old version then, thanks for clarification.

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Posted · Cura slices model incorrectly, unwanted holes

15.02.01 is what i use, just checked, tick support everywhere and you should be fine.

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Posted · Cura slices model incorrectly, unwanted holes

Could you also report this on github of the cura engine?

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Posted · Cura slices model incorrectly, unwanted holes

Was this issue ever fixed? I have been having it happen quite frequently

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Posted · Cura slices model incorrectly, unwanted holes

We have so many things that we work on at any given moment that it's almost impossible for me to keep track of everything we fix.

The best way to find out is to just test it.

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Posted · Cura slices model incorrectly, unwanted holes

In Cura 2.1.2, make sure "Union Overlapping Volumes" under "Mesh Fixes" is checked. The supports should be fine.

The missing supports was a problem with the old Cura.

That the model is broken is not a Cura issue, but Cura has options to _try_ to fix it. You should always check if Cura does what you expect and if not fix your model in an appropriate modelling software.

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Posted · Cura slices model incorrectly, unwanted holes

In Cura 2.1.2, make sure "Union Overlapping Volumes" under "Mesh Fixes" is checked. The supports should be fine.

The missing supports was a problem with the old Cura.

That the model is broken is not a Cura issue, but Cura has options to _try_ to fix it. You should always check if Cura does what you expect and if not fix your model in an appropriate modelling software.

 

Ok thanks!

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