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    Multiple EQ/EQ Constraints

    One of the most frustrating issues I have had while training in family creation is descibed as below. I am not sure if this is a bug in RAC2010 build 20090317_2115(x64) or not, but I was wondering if anyone has had the same issue.
    While trying to change the highlighted dim in the first image into parameter "j" (same as the horiz. parameter already there), I get the annoying result shown in the second image. I would think this is a basic fundmental function of the eq constraint, so I am stumped.
    Hours have been wasted during training sessions trying to figure a work around. What makes it worse is that I do have 2012 available to me, but I can not use due to the inability for saving back (most of our clients are not using current version). So, I am in a pickle here where I feel like I am forced to use a flawed 2010. I am not interested in debating the need to save down since there has been multiple threads on that topic already, I just want to resolve this issue I am having.

    Thanks for any feedback
    Attached Files

    http://www.captiveaire.com/
    Commercial Kitchen Ventilation Systems

    #2
    Without looking at the family i can already tell that there is somthing overconstrained. Adding the additional length constraint would be impossible without breaking existing constraints. So there is no workarraound to be found here. Here is exploration of the family elements needed starting with the orange highlighted elements.
    I and surely others wll have a look at the family and try to point you to the possible location of the problem(s). I need some time, so maybe others will be faster.
    dalmore
    Senior Member
    Last edited by dalmore; June 13, 2011, 05:51 PM.
    [email protected]

    http://4revit.com

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      #3
      ok, I give it up. I cannot reproduce the problem with my 2012 version here. Sorry for that.
      [email protected]

      http://4revit.com

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        #4
        I am not sure how you can tell just by looking at the images that it is overconstrained, but it eally is less complicated than it looks. The only thing tied to the ref planes is a eq/eq dim and the j paramater. There is no geometry in the family, just the skeleton.

        http://www.captiveaire.com/
        Commercial Kitchen Ventilation Systems

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          #5
          Originally posted by dalmore View Post
          ok, I give it up. I cannot reproduce the problem with my 2012 version here. Sorry for that.
          "RAC2010 build 20090317_2115(x64)"

          http://www.captiveaire.com/
          Commercial Kitchen Ventilation Systems

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            #6
            Try putting the dimension that breaks to the same distance as the "j" parameter & make it equal manually... then place the "EQ" dimension and then change the dimension to be "J" ...See if that resets it and works... When dimensions are different than the parameter they are being set to Revit likes to kick us in the ankles...
            -J
            http://about.me/JayZallan
            Tweet, Link or Blog me up!!!

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              #7
              Originally posted by JBZ View Post
              Try putting the dimension that breaks to the same distance as the "j" parameter & make it equal manually... then place the "EQ" dimension and then change the dimension to be "J" ...See if that resets it and works... When dimensions are different than the parameter they are being set to Revit likes to kick us in the ankles...
              That would be my guess too. And since this behaviour is very much improved in 2011 and 2012 it would also explain why Dalmore isn't able to reproduce the problem.
              Martijn de Riet
              Professional Revit Consultant | Revit API Developer
              MdR Advies
              Planta1 Revit Online Consulting

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                #8
                Originally posted by mdradvies View Post
                That would be my guess too. And since this behaviour is very much improved in 2011 and 2012 it would also explain why Dalmore isn't able to reproduce the problem.
                Yes, in the 2012 version, we can make multiple equal-equal constraints, from the same center, or with different centers using the same parameter, and with or without the distances being the same, etc. It always works. This proves that from 2010 to 2012 some things were quietly fixed in the family editor by the Factory.
                Freelance BIM Provider at Autodesk Services Marketplace | Linkedin

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