This is from a week ago : Ideamaker vs S3D V5.0.1. STL is flawless (manifold, zero errors according to our Materialise Magics software - same info is given by Ideamaker, Netfabb, Microsoft's various 3D tools and _even_ S3D_ can't find anything wrong withe the stl) I've printed this STL 4 times now o...