Three-dimensional space - Introduction to AutoCAD 2011: 2D and 3D Design - page 361

Exercises

Methods of constructing answers to the following exercises can be found in the free website:
http://books.elsevier.com/companions/978-0-08-096575-8

1. Fig. 17.33 is a rendering of a two-view

projection of an angle bracket in which
two pins are placed in holes in each of the
arms of the bracket. Fig. 17.34 is a two-view
projection of the bracket.
Construct a 3D model of the bracket and
its pins.
Add lighting to the scene and materials
to the parts of the model and render.

2. The two-view projection ( Fig. 17.35 ) shows

a stand consisting of two hexagonal prisms.
Circular holes have been cut right through
each face of the smaller hexagonal prism and
rectangular holes with rounded ends have
been cut right through the faces of the larger.
Construct a 3D model of the stand. When
completed add suitable lighting to the scene.
Then add a material to the model and render
( Fig. 17.36 ).

Holes Ø30

46

Fig. 17.33 Exercise 1 - a rendering

70
80

Fig. 17.35 Exercise 2 - details of shapes and sizes

60

Holes Ø30

Ø30
Ø40

10

R25

Fig. 17.36 Exercise 2 - a rendering

Fig. 17.34 Exercise 1 - details of shape and sizes