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Therefore, an already optimised STL-file is needed as a Start Space. This can be exported directly from the post processing and be selected as a Start Space by clicking on the browse button. Therefore, the unit of the exported STL-file needs to be in meters (SI-Units). In most cases the Strut Density and Shape Quality settings must be changed as well using the Advanced User Settings. For a restart the same resolution level and number of to be completed iterations have to be filled in. You can find a Tutorial to how to perform a Restart here.

Advanced User Settings Commands for a Restart with Start Space:

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All areas applied with a boundary condition are automatically Interfaces. With an Interface the surface will grow a little bit beyond the Design Space boundaries to ensure a trouble-free and clean intersection. It is also possible to detect all Non-Design Space surfaces which are at the same time Design Space limits and let them grow automatically. This option results in a different connection between the Design Space and the Non-Design Spaces/Interfaces. Both results can be viewed here.

If the connection of the automatic Non-Design Growth is preferred, it can be activated with the following command:

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Sometimes this can lead to issues which are described here.

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Soft Symmetry

The soft symmetry is activated per default. It influences the design generation so that the part is symmetric in all three dimensions if they were symmetric in the respective dimension to begin with. This is achieved for geometrical symmetrical design spaces even without symmetric LBCs and the hard symmetry constraint.

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