When constructing a feature using more than one profile, all the profiles must be closed. The following feature commands allow you to construct features using multiple closed profiles:
Protrusion command, when constructing a base feature or adding a feature.
Revolved Protrusion command, when constructing a base feature or adding a feature. All profiles must share a common axis of revolution.
Cutout command.
Revolved Cutout command, all profiles must share a common axis of revolution.