after you finish the step 12 or 14, you can extract the curves from solid body.just follow the step as below:' }- \3 n% J* n7 o" @: u
1: make new layer for new curve. # c( ~& K1 y8 x0 C" I9 ~$ T/ f! P2: 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. + ~0 J, j7 |) W' w3 o. \7 e6 e; v1 P3 t3. make the solid layer invisible but the new layer of new curve selectable or work.- r- m2 K7 e, M5 [
4. that's all.