Extrusion Object
Create > Extrusion Object
 

Description:

    The Extrusion Object (Create > Extrusion Object) command allows you to extrude a surface along a vector to create a 3-dimensional shape. In the Extrusion Object options (Create > Extrusion Object > ...) you can change the height of the extrusion, the number of sections the new object will have, and the vector along which the extrusion will be created.

Notes:

-Extrusion Object will work on a 3-dimensional shape such as a cube, but works best on relatively flat non-closed shapes, such as a polygon, line segment, or grid.

- Extruding an object that consists of faces will create a closed object (caps on the end), whereas extruding an object that consists of only edges (i.e. a line segment) will create an object that is open on the ends.