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MSC Apex Generative Design allows the user to create different result structures depending on the defined parameters such as Strut Density, Shape Quality and Complexity. Furthermore, the design can be changed by taking advantage of the capability to reduce unnecessary Non-Design Spaces and fixation points. This gives the optimisation more freedom and will create completely new designs. In some cases it even makes sense to consider part consolidation as another goal of the optimisation.
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You might also be interested in this tutorial:
Generative Design - GD-Bracket