Shows the attribute classpart property that groups parts according to identifiers given by the user

The identifiers of classes are usually numbers. Classes can be used for defining the color of parts in the model, for example. Class does not influence the numbering of model objects.

of parts and bolts. For assemblies it shows the attribute class of the assembly main partmain part that exists in an assembly

The assembly main part in a steel assembly may have other parts welded or bolted to it. By default, the assembly main part is not welded or bolted to any other parts.

The user can change the assembly main part.

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