"Support Everywhere" is not honored correctly

[unlimitedbacon]

Even with "Support Everywhere" turned off, internal support structures are being generated on the left side of these parts.

This has been an issue for a very long time. I remember having exactly the same problem with the same print using 1.7, but I cannot find an old bug report.

[larsbrubaker]

There is likely some tiny part of the mesh that is over the bed in these parts and as it is extended down to the bed it gets clipped away by the xy distance to the bottom of the part.

This is a complex issue and will ultimately be fixed when we add more support for auto creating supports directly in MC, rather than MS.