The modification of 3D models - Introduction to AutoCAD 2011: 2D and 3D Design - page 275

11. With Union , form a union between the radius 30 cylinder and the 3D

model and with Subtract , subtract the radius 25 cylinder from the 3D
model.

12. C lick Realistic in the View/Visual Styles panel list.

The result is given in Fig. 14.9 .

N o t e s

Fig. 14.9 Example
of constructing a 3D
model

This 3D model could equally as well have been constructed in a three or
four viewports setting. Full Shading has been set on from the Render
ribbon, hence the line of shadows.

The 3D Array tool

First example - a Rectangular Array ( Fig. 14.12 )

1. Construct the star-shaped pline on a layer colour green (Fig. 14.10) and
extrude it to a height of 20 .
2. Click on the 3D Array in the Home/Modify panel ( Fig. 14.11 ). The
command line shows:

70

Fig. 14.10 Example -
3D Array - the star
pline

Fig. 14.11 Selecting 3D Array from the Home/Modify panel

Command:_3darray
Select objects: pick the extrusion 1 found
Select objects: right-click
Enter the type of array [Rectangular/Polar] <R>:
right-click
Enter the number of rows (---) <1>: enter 3 right-
click
Enter the number of columns (III): enter 3 right-
click
Enter the number of levels ( ...): enter 4 right-click