Yeggi - Search engine for 3D printable models.
3D Warehouse - 3D Warehouse contains millions of models created in SketchUp.
Repair 3D Models
Use the Microsoft 3D Model Repair service to repair STL, OBJ, 3MF or VRML files automatically. 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!
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