I found the Damp falling through the geometry holes kind of interesting. My current company does fluid-flow simulation, and we have large meshes coming in from

I found the Damp falling through the geometry holes kind of interesting. My current company does fluid-flow simulation, and we have large meshes coming in from CAD with precisely this sort of problem. Our solution was to create an algorithm to remove the holes. It probably would have been hard to brainstorm the idea of fixing the geometry algorithmically, but I bet it would not take too long to write up something. Even if the algorithm is very inefficient, you could let it run over the weekend. A throwaway app is probably a small price to pay for clean geometry.