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