3D models in viewports - Introduction to AutoCAD 2011: 2D and 3D Design - page 263

Fig. 13.9 First example - Four: Equal viewports

Second example - Four: Left viewports (Fig. 13.11)

1. Open a Four: Left viewport layout from the Views/Viewports popup
list ( Fig. 13.3 ).
2. Make a new layer of colour Magenta and make that layer current.
3. In the To p viewport construct an outline of the web of the Support
Bracket shown in Fig. 13.10. With the Extrude tool, extrude the parts
of the web to a height of 20 .
4. With the Subtract tool, subtract the holes from the web.

Dimensions in millimetres DO NOT SCALE

Holes Ø20
R15

30

20

300

10

R5

10

R50

Hole Ø80

Name: Scale: Date: Title:

A. Reader 1:1 12/09/2006 Support Bracket 3/A

Fig. 13.10 Working drawing for the second example