Create and modify 3D models > Make a 3D model > Examples > Example: Uniting three parts
  
Example: Uniting three parts
In this example you will unite parts 1 and 2 with 3. Shown below are the three parts and the resulting part:
To unite the three parts:
1. Click Modeling and then, in the Model group, click the arrow next toBoolean.
2. Click Unite. The Unite dialog box opens.
3. Click Blank and click part 3.
4. Specify the tool parts:
a. Click Tools.
b. Click Select.
c. Click Start (in List).
d. Click parts 1 and 2.
e. To complete the list of parts, click End.
5. Click Keep Tool off, so only your resulting part will remain.
6. Click to complete the operation.
Creo Elements/Direct Modeling unites the three parts and names the resulting part 3.