Introducing 3D modeling - Introduction to AutoCAD 2011: 2D and 3D Design - page 240

3. Place in the 3D Navigate/Front view.
4. Call the Cylinder tool and with a centre 170,150 construct a cylinder
of radius 60 and height 15 .
5. Click the Cone tool in the Home/Create panel. The command line
shows:

Command: _cone
Specify center point of base or [3P/2P/Ttr/
Elliptical]: 170,150
Specify base radius or [Diameter]: 40
Specify height or [2Point/Axis endpoint/Top
radius]: 150
Command:

6. Call the Sphere tool and construct a sphere of centre 170,150 and
radius 45 .
7. Place the screen in the 3D Navigate/Front view and with the Move
tool, move the cone and sphere so that the cone is resting on the
cylinder and the centre of the sphere is at the apex of the cone.
8. Place in the 3D Navigate/SW Isometric view, Zoom to 1 and with
Union form a single 3D model from the three objects.
9. Place in Visual Styles/Conceptual .

Fig. 12.26 Third

example - Cylinder,
Cone and Sphere The result is shown in Fig. 12.26 .

Fourth example - Box and Wedge ( Fig. 12.27 )

1. Make layer Blue current.
2. Place in the 3D Navigate/Top view.
3. Click the Box tool icon in the Home/Create panel and construct
two boxes, the fi rst from corners 70,210 and 290,120 of height 10 ,
the second of corners 120,200,10 and 240,120,10 and of height 80 .
4. Place the screen in the 3D Navigate/Front view and Zoom to 1 .
5. Click the Wedge tool icon in the Home/Create panel. The command
line shows:

Command: _wedge
Specify fi rst corner or [Center]: 120,170,10
Specify other corner or [Cube/Length]:
80,160,10
Specify height or [2Point]: 70
Command: right-click
WEDGE
Specify fi rst corner of wedge or [Center]:
240,170,10