With INTERSECT, you can create a 3D solid from the common volume of two or more existing
۳D solids, surfaces, or regions. If you select a mesh, you can convert it to a solid
or surface before completing the operation.

You can extrude 2D profiles and then intersect them to create a complex model efficiently.

The selection set can contain regions, solids, and surfaces that lie in any number
of arbitrary planes. INTERSECT divides the selection set into subsets and tests for
intersections within each subset. The first subset contains all the solids and surfaces
in the selection set. The second subset contains the first selected region and all
subsequent coplanar regions. The third subset contains the next region that is not
coplanar with the first region and all subsequent coplanar regions, and so on until
all regions belong to a subset.