RE: 3D surface modeling expert help needed!!!
It would take many pages to explain what it is you are asking, but in breif.
I'm not familiar with the software you are using but if it has a "LOFTING", & "SECTION" command you should be able to gather your points for a CAM program.
the lofting command will create a solid from two, 2D profiles (So, the more 2D sections you have, the more realistic your 3d model will look)
Not sure if you can extract sections from a surface model but give it a try
Good luck
HO-229