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mbrown-nasa1-Visitor
1-Visitor
April 30, 2014
Question

What are the implications of using the “set independent” option?

  • April 30, 2014
  • 2 replies
  • 6578 views

What exactly are the implications of using the “set independent” option for external references? Does is mean that once the links are set to dependent that everything updates and you might not know what all is changed?

    2 replies

    T
    TomD.inPDX17-Peridot
    17-Peridot
    April 30, 2014

    Mike, can you explain where you are setting this option?

    M
    mbrown-nasa1-VisitorAuthor
    1-Visitor
    April 30, 2014

    You can go "edit definition" on each feature and set it to independent.

    T
    TomD.inPDX17-Peridot
    17-Peridot
    April 30, 2014

    This is not the case of native features so you are talking about specific features that inherit data from external sources. When you can set them to independent, yes, you break the link but when you make them dependent, the part updates if the master is updated.

    Some features don't allow independence.

    The ramifications are no different on what due-diligence requires. I work very hard not to create outside dependencies. If you think about it, drawings are highly dependent on the drawing models. A change in the model can wreak havoc on the drawing. I did a simple replacement of a chamfer with a revolve cut to manage the angle better (odd interface). Since one of the surfaces was a primary datum, the whole drawing went to heck in a handbasket forcing me to re-place 2 dozen dimensions.

    N
    neomechanikos1-Visitor
    1-Visitor
    April 30, 2014

    I've used the set independent option to resolve failures from copy geometry that would otherwise make a model explode.

    For instance:

    • Say I have a copy geometry of some surfaces on a skeleton model of an aircraft wing. The copy geometry drives the major surfaces of a bracket that I'm working on.
    • Now, another user modifies the skeleton in a way such that my copy geometry references are blown away yet the part hasn't changed much. Now I can't regenerate my part without the model exploding.
    • So, I erase the skeleton from session and then set my copy geometry reference to independent.
    • My part will regenerate and I'm free to create a new (dependent) copy geometry reference to replace the old independent one without the entirety of my model going into an epileptic fit.
    • Now that the copy geometry is replaced with correct references that are dependent, it will always update to the latest skeleton changes.
    T
    TomD.inPDX17-Peridot
    17-Peridot
    May 1, 2014

    Eric, this sooooo deserves a document of its own

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