Union overlapping volumes problem in cura

[icool123 0]

Hello !
I can't undersand why cura dos't union crossed parts with "Union overlapping volumes" option.
I come across from time to time something similar in different models.
I know that  option "Remove All Holes" can make it rigth for some case, but it not solution because original model must contain holles too.
I tried with cura 4.4 and 4.5.
Thanks.

sample.3mf sample.stl sample2.3mf sample2.stl

[IRobertI 450]

I'm confused. If you know that your STL is broken (which it is), why not fix the model rather than trying to use Cura to work around it?

 

But for what it's worth, both MS 3D Builder and the Cura plugin "Mesh Tools" could fix at least "sample.stl" which I tested.

[icool123 0]

Ok, I'll try to check and try with the "Mesh Tools".
The statement "STL is broken" is news to me. I still do not quite understand what this means and how to see it (Windows 3D viewer shows the correct picture).
If you mean dirties in details (overlapping elements instead of accurate adjacencies) then I really expect that the cura will accept this in order to reduce the time for prototyping.
I made a model, I export to STL and expect to get what I painted.
Here another problem arises for me ... What should I do or not do in the editor so that I get the correct STL (when I understand what it is) since iterative editing and small modifications of the model and subsequent editing of the STL can be tediously.

At the moment, I have found a workaround. I uploaded STL to Slyc3r, just export to new STL and got what I needed in the Cura.
Thanks !

Edited March 14 by icool123

[icool123 0]

"Mesh Tools" is enough for me for now.

Thanks !

Edited March 14 by icool123