I just tested NetFabb cloud out with one of the models that MeshLab failed on, the model has 6912 seperate but interlaced elements (shells) comprising of 221184 triangles... NetFabb failed with error message "calculation failed"
So then I installed NetFabb Basic and, erm, for some wierd reason it was showing 89k+ flipped triangles and a minus volume - I've never encountered an issue with flipped normals before, but I fixed it with Accutrans and hey presto no errors in NetFabb Basic.
With the fixed file, I;
Tried the online NetFabb service - failed with error message "calculation failed"
Tried uploading to Shapeways - failed with error message "error while unifying: 17"
I deduced a while back that the error was possibly caused by a relationship between the number of interlaced shells and the total number of triangles, see;
https://www.shapeways.com/forum/index.php?t=msg&th=4303&a mp;start=0&
p.s. I nearly always aim for triangles smaller than the 3d print resolution to make a model print as smooth as possible and avoid visable stepping... 211k triangles is small