At what step in the Mirror Assemblies Wizard can you define a user-defined symmetry plane for non-symmetric parts?

The correct step to define a user-defined symmetry plane for non-symmetric parts is during the Select Plane step. This step is crucial because it allows the user to specify the plane that will serve as the reference for mirroring the selected components. By defining a user-defined plane at this stage, you can tailor the mirror operation to match the specific asymmetry of your parts, ensuring that the mirrored components align correctly with the original geometry.

In contrast, while the Select Component step focuses on choosing the components to be mirrored, it doesn’t provide an option to define the symmetry plane. The Naming Policy Step deals with how the mirrored components will be named, which is unrelated to the actual geometry modification. The Mirror Setup step is primarily where the mirroring parameters are reviewed and finalized, without the ability to create or define a new symmetry plane. Therefore, it is the Select Plane step that is essential for accurately mirroring non-symmetric parts within the assembly.