Use Define Envelopes to remove geometric complexity from the exterior shell of the included parts.
Begin panel
Recognize Revit Features
BIM Ready Content panel, select Recognize Revit Features If you choose to preserve the Inventor features already recognized by Revit, these features will be saved and hidden as you continue to recognize Revit features from the remaining base solid geometry.
If you choose to convert Inventor features already recognized by Revit back to base solids you will no longer have any features that are recognized by Revit. Choose this option if you need to start over. For example, if you have created Inventor features and are having difficulty getting them translated to Revit (for example, Check Revit Features reports errors), you can create a base solid and recognize new Revit features.
Simplify panel, select Define Envelopes.
Simplify panel. When you create a simplified part, the part will be opened in the newly created part (.ipt) file. Assembly (.iam) file: Simplify tab
Simplify panel
Part (.ipt) file: Environments tab
Recognize Revit Features panel
Define Envelopes
Select the Simple Shape - choose from Bounding Box or Bounding Cylinder.
Select the Faces.
Choose the method of creation - join to an existing solid or create a new feature
to apply the change and continue.
to finish. The simplified envelopes populate the browser.
Click here to view the step by step workflow for creating a friendly RFA model.