When I export this blend, external software shows it as heavily deformed. Blender shows it fine and so does the Windows Object Viewer.
Shapeways and Tinkercad however shows the following:
I've tried to export stl, obj and other formats (ultimately I'll need stl) and they all come out the same. I have tried to convert quads to tris, but that did not produce a different result.
Object is manifold, has no loose geometry, no doubles and no pending modifiers.
Anyone know why and how to fix it?