To Create a NURBS Surface by Conversion and Lofting

1. At the Command prompt, enter SURFACEMODELINGMODE and set the system variable to 1.
2. Click Modeling tab > Solid panel > Modeling drop-down > Loft.
3. In the drawing area, select cross-section profiles and press Enter. (Select them in the order in which you want the new 3D object to pass through the cross sections.)

   After the loft operation, the original objects are deleted or retained, depending on the setting of the DELOBJ system variable.