Hi Brian, the DXF files though seem to be all flattened so they're probably projected down to no z values already in those ones.

@Marv - I don't really have any idea why the cuts are not going properly, you will probably need to contact VCarve tech support to find out why the cuts are getting clipped in some areas. I would have thought that if there was some problem with the DXF import itself you would probably see the problem right on screen in VCarve Pro...

- Michael