Moi STLs contain self-intersecting edges ( Teeny bug report )

 From:  Crusoe the Painter (CRUSOE)
733.5 In reply to 733.4 
Actually, those don't do much. The longer tris just get smaller, but still very very skinny. You have to zoom WAY in to see that they have any thickness at all. There needs to be some kind of 'annealing' feature that takes skinny triangles and collapses them down in some fashion. This is probably most important along the trim curves, where a lot of skinny tris can be created.

It's a minor gotcha. The meshes are already pretty clean.