2013

 Specify the offset distance. Sets a positive value to increase the size of
the solid or a negative value to decrease the size of the solid.
Face: Taper
Taper Tapers faces on a 3D solid at a specified angle. The rotation of the taper
angle is determined by the selection sequence of the base point and second
point along the selected vector.
A positive angle tapers the face in, and a negative angle tapers the face out.
The default angle, 0, extrudes the face perpendicular to its plane. All selected
faces in the selection set are tapered to the same value.
 Select faces (taper) (page 1000)

Undo (page 992)
S Commands | 999