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by wronex 1671 days ago
I would consider that an issue with the software. Non-manifold models, or self-intersecting models, are not suitable for 3D printing. This is an issue with the model rather than the file format.

If 3MF somehow makes self-intersection, and non-manifoldness, impossible cannot we run STL files though the same algorithm to end up with a "fixed" mesh?

What happens if you try to save a non-manifold model as 3MF? Will it magically fix the issue or will it fail to generate the file?