Frequently the structure of an assembly that is best for manufacturing limits the ability to use positional reps.
During the initial design stage several parts form an assembly. These parts are then demoted into logical sub-assemblies for manufacturing documentation.
I want to maintain the positional reps that were established during the design phase in order to validate motion when needed. If the main assembly contains two sub-assemblies there is no way that I have found to have one of the two sub-assemblies control the positions of the parts in the second. I end up promoting one of the sub-assemblies and blowing away the manufacturing drawing that depended on it. I know that I could use a positional rep and plane constraints to 'dummy' the driving sub-assembly, but then I need to remember to maintain the relationship between those planes and the driving sub-assembly. Other than using a spreadsheet to tie the two together parametrically is there another way?
