Create Bounding Solids
Use the Solids: Bounding tool to create solids from enclosed surface volumes.
- 
                From the Geometry ribbon, click the Solids > Bounding tool.
                 
 Figure 1.
- Optional: 
                On the guide bar, click  to define additional
                    options. to define additional
                    options.
- 
                Select bounding surfaces in the following ways:
                - On the guide bar, click Find to detect bounding surface
                            sets.Review each found/selected bounding surface group by clicking  and and . .
- Left-click on bounding surfaces in the modeling window.
 
- On the guide bar, click Find to detect bounding surface
                            sets.
- 
                Create bounding solids.
                - Click Create All to create bounding solids from all found/selected surface bounds.
- Create individual bounding solids by left-clicking on a selected bounding surface.