Hi
Why cant I extrude (push pull / tapered extrude / normal extrude) this nurbs surface?
Want to create ribs for a furniture piece
Steps i followed:
1 Created the model
2 create contours with the contours tool
3 offset the nurbs curve inside with 20mm
4 made from the outer nurbs curve a nurbs surface
5 trimmed the inner curve from the nurbs surface
6 try to extrude, failed.
Step 6 went well for several other ribs I tried to create, but not with this one.
Somebody knows why?
Other thing that often happens, but I cant replicate at the moment:
1 Create contours from a solid or nurbs surface.
2 Offset the nurbs curve to a specific site with something like 10mm.
3 9 of the 10 curves do that too the right side, but 1 or 2 do it to the wrong side (not to the inside but to the outside)? Why?
Its not because of the curve direction, I checked that.