AutoCAD 2008 User's
Guide > Work with 3D
Models > Create 3D
Models > Create 3D Solids and
Surfaces > Create Solids and
Surfaces from Lines and Curves >
Create Solids and Surfaces from Lines and Curves
To extrude an object along a path
To create a solid or surface by sweeping an object along a path
To create a solid or surface by lofting through a set of cross sections
