Volume Extract Tool
Use the Volume Extract tool in the Analysis group on the Prepare tab to create a solid that represents the internals of a part or assembly (including meshes). A solid named Volume is created in the Structure tree, and the bodies used to generate the volume are temporarily transparent when the volume is created.
Note: If an edge will be removed when you use the Volume Extract
tool, that edge will flash red and you will receive a warning message. This can
happen when you select a capping edge that will be removed when it is merged with
the rest of the model. The highlight identifies the problem so you can pick a
different edge.
This section contains the following topics: