To Change Default Rules for Sheet Metal Parts

Use the Sheet Metal Defaults dialog box to change the options and parameters defined by the selected Sheet Metal Rule for the active sheet metal part.

You use the Sheet Metal Defaults dialog box to select a Sheet Metal Rule. You can also select a material type, unfolding rule, and sheet thickness that is different from the value specified in the Sheet Metal Rule.

• Access the Style and Standard Editor to make edits to an Unfolding Rule.
• Access the Material Editor to make edits to a material (not available in Inventor LT) .

1. On the ribbon, click Sheet Metal tab Setup panel Sheet Metal Defaults .
2. (Optional) To change the default Sheet Metal Rule, Material, or Unfolding Rule for the active part, select from the following drop-down lists:
   • Sheet Metal Rule. When the filter in the Style and Standard Editor is set to:
     • Local, the list contains all sheet metal rules within the local file.
     • All Styles, the list contains all sheet metal rules within the style library.
   • Material. Lists all materials in the active library. If the desired material is in another library, browse to that library and select the material. If the necessary material library is not in the project file, we recommend you add it to the project so it is readily accessible.
   • Unfold Rule. When the filter in Style and Standard Editor is set to:
     • Local, the list contains all unfolding rules within the local file.
     • All Styles, the list contains all unfolding rules within the style library.
3. (Optional) To specify a sheet metal thickness that is different from the Sheet Metal Rule value, clear the Use Thickness from Rule checkbox and enter a value.

   Use Thickness from Rule is disabled if the active part is a sheet metal iPart factory and the iPart table was created with Thickness as a column in the table

4. (Optional) To edit or create a sheet metal rule or unfolding rule, click Edit next to the appropriate field to open the Style and Standard Editor.
   • Edit Sheet Metal Rule . Provides access to the Sheet Metal edit panel in the Style and Standard Editor and allows editing the selections and values which are used to define Material and other options. With Inventor, you can also edit the selections and values which are used to define Thickness, Bend, Corner, and Flat Pattern options.
   • Edit Unfold Rule. Provides access to the Sheet Metal Unfold edit panel in the Style and Standard Editor. With Inventor you can edit the selections and values which are used to define: linear unfolding method vs. bend table-driven bends, KFactor values and bend table tolerance options.