This is very handy for repairing 3D models. It is a automated cloud service that can repair “broken” 3d models.
“Use the Microsoft 3D Model Repair service powered by netfabb to repair STL, OBJ, 3MF or VRML files automatically. Like a spellchecker, this service will save you time by taking care of the many common errors in 3D models that otherwise would require manual repair by a dedicated designer. The service closes holes in the model, fixes face normals, removes self-intersections, and more. You’ll be more productive and be on your way to more reliable 3D manufacturing in minutes!”