Introducing 3D modeling - Introduction to AutoCAD 2011: 2D and 3D Design - page 239

Second example - Sphere and Cylinder ( Fig. 12.25 )

1. Make layer Green current.
2. Set ISOLINES to 16 .

3. Click the Sphere tool icon from the Home/Create panel. The command
line shows:

Command: _sphere
Specify center point or [3P/2P/Ttr]: 180,170
Specify radius or [Diameter]: 50
Command:

4. Click the Cylinder tool icon in the Home/Create panel. The command
line shows:

Command: _cylinder
Specify center point of base or [3P/2P/Ttr/
Elliptical]: 180,170
Specify base radius or [Diameter]: 25
Specify height or [2Point/Axis endpoint]: 110
Command:

5. Place the screen in the 3D Navigate/Front view. Zoom to 1 .
6. With the Move tool (from the Home/Modify panel), move the cylinder
vertically down so that the bottom of the cylinder is at the bottom of the
sphere.
7. Click the Subtract tool icon in the Home/Edit panel. The command
line shows:

Command: _subtract Select solids and regions to
subtract from...
Select objects: pick the sphere 1 found
Select objects: right-click
Select solids and regions to subtract
Select objects: pick the cylinder 1 found
Select objects: right-click
Command:

8. Place the screen in 3D Navigate/SW Isometric. Zoom to 1 .
9. Place in Visual Styles/Realistic .

Fig. 12.25 Second
example - Sphere and
Cylinder

The result is shown in Fig. 12.25 .

Third example - Cylinder, Cone and Sphere ( Fig. 12.26 )

1. Make Blue the current layer.
2. Set Isolines to 24 .