Progettazione di stampi e colata > Creating Mold and Cast Features > User-Defined Features > To Define a User-Defined Feature (UDF)
  
To Define a User-Defined Feature (UDF)
Features used to model sprue, runner, and gate systems should be modeled as assembly features that intersect the workpiece or die block, or the mold or cast components. These features can then be made into UDFs for later use in other models.
1. Create an assembly feature(s) intersecting required components of the desired geometry.
2. Sketch the desired section using the edges and surfaces of the reference part as necessary.
You should use the same reference multiple times because complimentary references will need to be specified when the UDF is used. You will be asked to create a prompt message for each reference.
You should set up relations for the feature where possible. For example, the height is always 1.5 times the width. This reduces the number of variable dimensions you will need to enter every time you place the feature.
3. On the Mold or Cast tab, click Tools > UDF Library. The UDF menu appears.
4. Click Create.
5. Specify the name of the user-defined feature.
6. Select one of the following on the UDF OPTIONS menu:
Stand Alone—The UDF is functional by itself.
Subordinate—The UDF depends on the part in which it is being created.
7. Select the features that you want to include in the UDF.