2011

Table Of Contents
Create Composite Objects
Create composite 3D objects by combining, subtracting, or finding the
intersecting mass of two or more 3D solids, surfaces, or regions.
Composite solids are created from two or more solids, surfaces, or regions
through any of the following commands: UNION, SUBTRACT, and INTERSECT.
3D solids record a history of how they were created. This history allows you to
see the original forms that make up composite solids. For more information,
see
Display Original Forms of Composite Solids on page 1134.
Methods for Creating Composite Objects
Three methods are available for creating composite solids, surfaces, or regions:
Combine two or more objects.
With UNION, you can combine the total volume of two or more objects.
Subtract one set of solids from another.
With SUBTRACT, you can remove the common area of one set of solids
from another. For example, you can use SUBTRACT to add holes to a
mechanical part by subtracting cylinders from the object.
Find the common volume.
With INTERSECT, you can create a composite solid from the common
volume of two or more overlapping solids. INTERSECT removes the portions
1008 | Chapter 24 Create 3D Models