Creo NC Sheetmetal > Manufacturing Model > To Define a Manufacturing UDF
  
To Define a Manufacturing UDF
1. From the SMT MFG MACHINING dialog box, click Utilities > Feature > UDF Library. The UDF menu appears.
2. Click Create.
3. Specify the name for the group. TheUDF OPTIONS menu appears.
4. Select an option from the UDF OPTIONS menu:
Stand Alone—The UDF is functional by itself.
Subordinate—The UDF is driven by the current model.
5. Define the UDF elements as you would when creating a group of part features. Select manufacturing features (NC sequences and material removal features) to be grouped.
6. If a features’ group is referenced by selected NC sequences, the MFG UDF REF menu appears. Select one of the following options:
Design UDF—Use a reference group of features to resolve references. If only one design UDF is referenced, it is selected automatically, otherwise select a group to use.
Ref Part—Use the reference part to resolve references.
None—Stores no reference information.
If no design UDF is referenced, the MFG UDF REF menu does not appear. You must select a reference part to use. If you do not want to select a reference part, click Done Sel without selecting a part.
7. After you successfully define the group, the information is automatically stored.
 
* If you specify a reference design UDF, you are not prompted for the corresponding placement references; they are resolved automatically.