Hi,

A 3D sketch is containing just a 3D spline, defined as intersection of 2 surfaces.

If I change one of the surface, the 3D spline is lost, and i am then full of 3D spleen.

Is there a way to make me more happy with this wonderful SW program : the 3D spline goes on to be the intersection of 2 surfaces, even if I modify one of them ?

Btw, one more proof given with this delicious problem that guys who were behind the screen to write this wonderful program could improve their math : I am searching the intersection surface in the curve menu (one 1D sub manifold can be the intersection of 2 2D-manifolds) , and of course, I don't find it there, but hiden in the Tools-> sketch tool !!!!

Pet,

I'm not defending the way that SolidWorks handles splines, but I think that there is probably an historical reason why the Intersection Curve is in the Sketch Tools menu. I think that when it was first developed, it only allowed for the intersection of a body with a plane and that plane was, of course, the sketch plane. When the tool became more capable, it would have made more sense to put it in both the Sketch Tools menu and the Curves menu, but someone dropped the ball on that.

Jerry Steiger