As an alternative to the repair operation described in the previous tutorial you can also apply defeaturing tools to remove small details from the geometry. Using these tools you can first search the geometry for features that fall within a set tolerance, then, after examining the search results, you can decide which ones to delete. While the repair operation has the advantage that it quickly removes every feature it can within a specified tolerance, the defeaturing tools give you more control with selective removal of features. The objects resulting after both of these methods are possible to export to CAD formats, such as IGES, STEP, ACIS®, and Parasolid®.

When removing small faces, sliver faces, and short edges it is good practice to start by searching for and removing entities that are only slightly larger than the default import tolerance, 10-5 m. Thus, in a first attempt, search for small faces with a maximum size of 10-4 m. Continue by deleting all or some of the returned small faces, then search again with an even higher tolerance, for example 5·10-4 m.