About Creating Solid Parts in an Assembly
You can create new solid parts in an assembly using the
command. When you create a new part in an assembly, it has external dependencies to the assembly. A new part is created in one of four ways:
• Create features—Creates the first feature of a new part. The initial feature is dependent on the assembly. A new part is created and you enter feature creation mode. The new part is the Active model in the assembly, and remains active until you activate another submodel or the top level assembly.
• Locate default datums—Creates a component and assembles it automatically to references in the assembly. The system creates constraints to locate the default datum planes of the new component relative to the selected assembly references. A new part is created and you enter feature creation mode. The new part is the Active model in the assembly, and remains active until you activate another submodel or the top level assembly.
• Copy from existing—Creates a copy of an existing part and places it in the assembly. The new part is placed in the assembly, or is included in the assembly as an unplaced component.
|  A part that contains a Shrinkwrap feature is associative and, therefore, cannot be used as the source for creating a new part using Copy from existing. |
• Empty—Creates an empty part. The new part is placed in the assembly, or is included in the assembly as an unplaced component.