Automatically Detect Defects and Repair Meshes
Version 11 integrates fully automated detection of mesh defects in 3D models and provides repair functionality.

Find defects in a 3D model.
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mesh = ExampleData[{"Geometry3D", "StanfordBunny"}, "Region"];
FindMeshDefects[mesh]
Out[1]=

Repair the model.
In[2]:=

RepairMesh[mesh]
Out[2]=
