Hi Dimitri.

Well...as I said I don't have almost any "firsthand" experience in that kind of things and I don't have a 3D printer for the moment...

But I think that (maybe) things like Zebra analysis and other kind of more sophisticated tools for checking the "surface continuity", go beyond the simple 3D printing needs.

They come into play especially when it comes to "build" real thing from 3d models, when we talk about real manufacturing.

I suppose that simply talking about 3D printing, at least if we are talking about hobby, you don't have to worry about surface continuity or other things like that.

But, this is only my thoughts, I think that here there are other user that may have true experience of 3d printing.

Ciao!