The default height for a 3D model is 3mm — did you import at that default?
Are you using a tool small enough to cut the details at the height you did import at?
See:
for a recent discussion of this sort of issue.
The default height for a 3D model is 3mm — did you import at that default?
Are you using a tool small enough to cut the details at the height you did import at?
See:
for a recent discussion of this sort of issue.