after you finish the step 12 or 14, you can extract the curves from solid body.just follow the step as below:* ]- H, K. K# o5 M2 M
1: make new layer for new curve.9 Z$ S- L0 p3 W O$ F" i/ r; x
2: under modeling, choose Insert--Curve from Bodies---Extract---Edge Curves---All in Face, then select the face of solid bo dy,---ok---0k---Cancel, leave the Extract curve dialoge.' F) O" ^( C9 H \
3. make the solid layer invisible but the new layer of new curve selectable or work. ; R' S- N: |6 z4. that's all.