You can create solids and surfaces from existing lines and curves. You can use these objects to define both the profile and path for the solid or surface.
You can create solids and surfaces by extruding selected objects. Use the EXTRUDE command to create a solid or surface from a common profile of an object.
With the SWEEP command, you can create a new solid or surface by sweeping an open or closed planar curve (profile) along an open or closed 2D or 3D path.
With the LOFT command, you can create a 3D solid or surface by lofting (drawing a solid or surface) through a set of two or more cross-section curves.
With the REVOLVE command, you can create a solid or surface by revolving open or closed objects about an axis. The revolved objects define the profile of the solid or surface.