In a multibody part, you can combine multiple bodies to create a single body.

You can only combine bodies contained within one multibody part file. You cannot combine two separate parts. However, you can create a multibody part by using Insert Part to place one part into the other part file. Then you can use Combine on the multibody part.
To add bodies together:
-
Click Combine
(Features toolbar) or .
- In the PropertyManager, under Operation Type, select Add.
- For Bodies to Combine, select the bodies to combine.
You can select bodies in the graphics area or the
Solid Bodies 
folder in the FeatureManager design tree.
- Click Show Preview to preview the feature.
- Click
.