Repair Non-Manifold Body
KeyCreator \ Tools \ Maintenance \ Repair-Non-Manifold-Body

Location: Tools>Maintenance>Repair Non-Manifold

Use the Repair Non-Manifold Body function to repair solid bodies that verify as being non-manifold. This function determines if a body is non-manifold, and if it is it then breaks the body into two or more bodies.  The resulting bodies are each manifold. The breaks occur along the edges that were non-manifold. 

 NOTE: Manifold geometry is physically realizable. A cube, for example, is manifold, since you can physically create it. Two cubes sharing exactly one edge are considered non-manifold, since they are not physically realizable. Generally speaking, a manifold body will never have more than two faces meeting at an edge. Non-manifold situations can sometimes occur from Boolean operations.

Using the Function:

1      Select Repair Non-Manifold from the Tools>Maintenance submenu.

2      Select the non-manifold body to be unstitched.  If the body you select is manifold, you will be warned that such is the case.  If the body is non-manifold, it will be split (unstitched) into two manifold bodies.