When adding an existing sub-assembly into the main assembly, it is added with the default state of Rigid. The tree symbol for Rigid sub-assembly is with the top left gear in blue: .
The Rigid state means that the position of the components in the sub-assembly will not change from one instance of the sub-assembly to another.
Consider the example of the tooling table, in which there are three instances of the Vise sub-assembly.
As long as the sub-assemblies are in the default Rigid state, changing the distance between vise jaws in one sub-assembly changes the distance between the jaws in all of them.
In the Flexible state, the positions of the components within the sub-assembly can be managed independently for each instance of the sub-assembly.
To change the state to Flexible, select the instance of the sub-assembly in the tree, right-click and select Flexible/Rigid Sub-Assembly in the contextual menu.
The tree symbol changes, now with the top left gear in purple:
Once the Vise sub-assemblies have been changed to the Flexible state, the distance between the jaws can be changed independently for each instance of the sub-assembly.
In the Flexible state the positions of the components within the sub-assembly are managed and saved at the level of the main assembly product file.
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