Imprint

             Imprints an object on the selected solid. The object to be imprinted must interest one or more faces on the selected solid in order for imprinting to be successful.Imprinting is limited to the following objects: arcs, circles, lines, 2D and 3D polylines, ellipses, splines, regions, bodies, and 3D solids.

1. Extrude         objects (i.e. walls ) to create a solid objects.
2. Change          the UCS and draw an object on a face of one of the walls.
3. Choose          Modify, Solid Editing, Imprint
4. Select            a 3D solid: pick solid
5. Select            an object to imprint: pick circle
6. Delete           the source object Y