Hi Michael,

In that case, I would find matching curves and surfaces
for tangency and curvature very useful,
"Project to C Plane" for curves...and a surface generating tool
similar to Rhino's Network Surface.

I have not been able to get Blend to work on curves,
do you have an example of how it works?

BTW, I uploaded a texted version of the last tutorial I wrote.
I was wondering... is there a section on the forum just for tutorials?

Thanks,

-Jesse