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I'd like to be able to add a measurement (for example, the length of a sweep path) to the parameters (like driven dimensions) and use it on other features/dimension fields.
When modeling tubes, I want the length of the tube (a sweep) to show up in the BOM of the assembly where the tube is used. So I want to be able to put the parameter of the measurement into the "Base Quantity" of the Tube part.
I'm not sure that I fully understand your wish(?) - but do you want to use, for example, a mate constraint as a reference parameter?
Since every constraint is a specific parameter (that can be renamed) it can easily be used as a reference parameter - both locally as well as exported for use in other model files.
I see this request as a way to create a reference dimension between two components, not a driving dimension. If I apply a constraint between two objects, IV will try to solve the full set of assembly constraints and keep the assigned distance between the two components. That makes the constraint a driving dimension.
I might need to know the distance between two components as a result of all the other constraints in the assembly, so I need a reference dimension.
If i could create a measurement feature in the assembly or part, then I don't need to run the measurement tool each time I change the assembly. Instead, I create my measurement features for all the critical dimensions, make a note in the Engineers Notebook about acceptable values, write some iLogic to throw warnings when those values are exceeded, and remember what it all means when I return to a 3 year old design.
I could even use the measurement results in calculations with other model and user parameters. Maybe some simple calculations showing the effects of the assembly COG on the reaction forces at its mounting locations...
By the way, if this feature is added to Inventor, it needs to update as a result of changes to position reps.
kim.schroeder, using your example, the space between the 2 components may change, or their position may be more logically constrained by other means, but the space that you reference as "d0" is critical for another component somewhere else in the model.
It could certainly be done the way you display, but it would require many redundant constraints to keep up with.
It may satisfy some situations, but not nearly even 5% of the situations in which this functionality would have been useful to me. I do what you mention when I can.
They will allow me to moniter specfic dimensions, physical properties, areas, etc, but do not (IV2014) show up in the parameter list for the assembly. I can't use them for downstream calcs, or notes/tables on prints.
I expected that lots of people would miss this feature, but apparently they don't.
4 years later the urge for driving all subsequent processes with just input from the model is still increasing and we are still missing this feature.
This is a big hole in the automation of the Inventor BOM.
We currently need to manually override the BOM or manually put a parameter into the part parameters, which is prone to errors, especially with modifications in later versions of the part.
Don't know whether merging the thread would help, but it would certainly increase the overall vote count
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