The EXTRUDE command allows you to create a solid object from circles, polygons, and objects, created from or converted to Polylines, that have "closed" paths.
To access the Extrude command you can:
type extrude or ext at a Command: prompt
select Solids, and then Extrude, under the Draw Menu.
Prompt: Current wire frame density: ISOLINES=4
Select objects: Click on the object you wish to extrude and press Enter.
Prompt: Specify height of extrusion or [Path]: Type in value and press Enter
*NOTE: The height in an extrusion occurs along the Z axis; therefore,
you must be aware of the orientation of the UCS.
You use a positive or negative value depending on the direction you want the extrusion to project.
Prompt: Specify angle of taper for extrusion <0>: Type in an angle value if you wish to taper the extrusion or press Enter to select the default value of "0."
ITEMS THAT CAN BE EXTRUDED:
Example of "closed path" polyline:
Return to the AutoCAD Command List.