I designed and 3D printed this part and was suprised to see that one of the features was malformed. After examining the STL file, I saw that the mesh was incorrect. I had been using standard STL export settings for other parts with no issues (simple controls, 0.01mm max deviation). The geometry is a closed polysurface in the model and all surfaces seem clean. The only setting I found that affects the STL is the maximum edge length. If I set it to 5 mm, the hole feature is now well defined in the STL. I have uploaded the model and bad STL.
Is there something I am doing incorrectly or is this a bug with the export module?