Introducing 3D modeling - Introduction to AutoCAD 2011: 2D and 3D Design - page 252

2. Fig. 12.44 shows a 3D model constructed from

four polysolids which have been formed into
a union using the Union tool from the Home/
Modify panel. The original polysolid was
formed from a hexagon of edge length 30 .
The original polysolid was of height 40 and
Width 5 . Construct the union.

You will need to construct the outline and change
it into a region before being able to change the
outline into a solid of revolution using the Revolve
tool from the Home/Create panel. This is because
the semi-elliptical part of the outline has been
constructed using the Ellipse tool, resulting in
part of the outline being a spline, which cannot be
acted upon by Polyline Edit to form a closed pline.

Fig. 12.44 Exercise 2

3. Fig. 12.45 shows the 3D model from Exercise 2

acted upon by the Presspull tool from the
Home/Create panel.
With the 3D model from Exercise 2 on screen
and using the Presspull tool, construct the
3D model shown in Fig. 12.45. The distance of
the pull can be estimated.

Fig. 12.46 Exercise 4

45

5

2

Fig. 12.45 Exercise 3

4. Construct the 3D model of a wine glass

as shown in Fig. 12.46, working to the
dimensions given in the outline drawing
Fig. 12.47 .

6

45

Fig. 12.47 Exercise 4 - outline drawing