Volume calculation error

I have a closed solid polysurface, which has no naked or non-manifold edges, and checks out as a valid object. However, a volume calculation on the object fails: “unable to calculate volume”. I can’t tell what the problem is with the geometry here, and several other similar objects I’ve built for the same project don’t experience this issue. The only other relevant reports of this are from years ago, and appear to have been due to a known bug. Thanks!

FOAM BLANK 119_cut.3dm (16.3 MB)

Hello - you have some self-intersections here -



@pascal Ah, not sure how I missed that. Thanks Pascal.