A boundary spans two or more profiles in one or two directions. A boundary can be a base, boss, cut, or surface.
Boundaries follow the profiles specified in Direction 1 (blue) and Direction 2 (purple).
The Boundary Surface feature can create surfaces that span the extents of Direction 1 and Direction 2
A Boundary Surface can be used instead of a Filled Surface for a more controllable transition between faces.
A Boundary Cut is created in the same way as a Boundary Boss/Base, but the volume of the feature is removed.