- Click Surface tab
Create panel
NURBS Creation.
At the Command prompt, enter CONVTONURBS. - Click Surface tab
Create panel
Extrude.
At the Command prompt, enter EXTRUDE. - Select the objects or edge subobjects to extrude.
- Specify the height.
After the extrusion, the original objects are deleted or retained, depending on the setting of the DELOBJ system variable.