Click Mesh
Modeling tabMesh
Edit panelExtrude
Face. At the Command prompt,
enter extrude.
Press Ctrl+click a mesh face.
NoteIf you cannot select
a face, verify whether subobject selection filtering is turned on
for a different subobject type. (Right-click in the drawing area and
click Subobject Selection Filter.)
Drag the face in the direction of the
extrusion. Then specify the amount of extrusion using one of the
following methods:
Press Enter to set the extrusion dynamically.
Enter a value to indicate the height
or depth of the extrusion.
The selected face is
subdivided and extruded. The new, subdivided faces are created around
its boundaries to connect the extrusion with the original adjacent
faces.