To Create an External Shrinkwrap Feature
1. Retrieve an assembly or a part.
2. Click 
Shrinkwrap. The Shrinkwrap tab opens with the top-level assembly as the reference model.
Shrinkwrap. The Shrinkwrap tab opens with the top-level assembly as the reference model.3. Click 
External. The Placement dialog box opens. Set the following options:
External. The Placement dialog box opens. Set the following options:◦ Click Default to position the Shrinkwrap feature in the current model using default internal coordinate systems.
◦ Click Coord Sys to position the Shrinkwrap feature aligned to local and external coordinate systems.
 | A coordinate system can be created on the fly. If the reference model is an assembly, the coordinate system must be a feature of the top-level assembly (no part-level or subassembly-level coordinate systems are allowed). |
4. Click OK to exit the Placement dialog box.
| | Click  Edit Placement to return to the Placement dialog box and change placement references. |
5. Click 
Open to select a model located on disk or in session from which to copy geometry. A warning message appears stating that the external model is about to change. Click Yes to continue. When selection is complete, the model appears in a new active window. Now define surface sets on the active component from which to copy geometry.
Open to select a model located on disk or in session from which to copy geometry. A warning message appears stating that the external model is about to change. Click Yes to continue. When selection is complete, the model appears in a new active window. Now define surface sets on the active component from which to copy geometry.6. Click 
to complete the Shrinkwrap feature.
to complete the Shrinkwrap feature.