In the studies tab the Build Direction is automatically aligned to the Principal Coordinate System (PCS). The z-direction is the Build Direction! For each scenario the Build Direction can be easily changed, then the Build Direction for the Design Rules as well the material properties are rotated accordingly. This way multiple Build Directions can be used in one project. Afterwards the optimisation results can be compared in the Post Processing and the best build orientation can be picked.
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If a non-isotropic material is used, the Principal Coordinate System (PCS) is the reference for the material properties.
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