Introducing 3D modeling - Introduction to AutoCAD 2011: 2D and 3D Design - page 231

Fig. 12.11 Selecting the Union tool from the Home/Edit panel

4. Drawing 3 - with the Union tool form a union of the left-hand region
and the circular region.
5. Drawing 4 - call the Subtract tool, also from the Home/Edit panel.
The command line shows:

Command:_subtract Select solids and regions to
subtract from ...
Select

the region just formed 1 found
Select objects: right-click
Select solids and regions to subtract ...
Select objects: pick the right-hand region 1 found
Select objects: right-click
Command:

objects: pick

The Extrude tool

The Extrude tool can be called with a click on its name in the Home/
Create panel ( Fig. 12.12 ) , or by entering extrude or its abbreviation ext at
the command line.

Fig. 12.12 The Extrude tool from the Home/Create panel