Feature interference can occur for a variety of reasons. If you have already built your part and find that Mechanica cannot perform a shape change due to the interference of two features, identify the feature that is causing the problem and suppress it if possible. When you suppress a feature, that feature becomes nonexistent from Mechanica's point of view.

Note: Do not suppress a feature that carries a load or constraint unless you are doing so to prepare for an analysis type that does not require loads or constraints, such as a modal analysis with rigid mode search.

Before defeaturing an aspect of your design, ask yourself the following questions:

Would suppressing the feature change the behavior of the model?

Would suppressing the feature eliminate a factor that Mechanica should consider during a sensitivity study or optimization?

If the answer to both questions is no, consider suppressing the feature. Otherwise, you need to limit the design parameter range to eliminate the problem or, in some cases, rebuild the part using a different development scheme.

Note: If your part includes a large number of datum points that have no use in Mechanica, consider suppressing these points before accessing Mechanica. An excessive number of datum points can affect performance.

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