In certain situations, especially when preparing the optimization model of a complex part, it may happen that some material regions turn out to be redundant. Although in ProTOp such regions can always be designated as excluded, they may still interfere with some ProTOp tools, for example, with design configurators.
In such a case the redundant material region should be removed. Normally, this would necessitate
The problem here is that adequate changes in the CAD model may turn out to very difficult to do due to the hierarchical structure of CAD models. Namely, removal of some dependent object may result in turning the model invalid and tedious work may be needed to restore the model. To prevent this annoying situation, a complete material region (i.e., all corresponding finite elements) can be removed directly in ProTOp.