ExtrudeFeatures object and the ExtrudeDefinition object to define and execute the extrusion. Here's a basic example of how to create a simple VBA script to perform an extrusion operation in Autodesk Inventor: ExtrudeFeatures object and the ExtrudeDefinition object to define and execute the extrusion. Here's a basic example of how to create a simple VBA script to perform an extrusion operation in Autodesk Inventor: