Forums >> General Discussion >> Revit Project Management >> Shared Parameter Over Constrained Planes

Torschy

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Hey guys, so here is a bizare one:

I just started with shared parameters so I could make a door schedule with my custom doors.  I made a new shared parameter Door Schedule (group) > Door Tag (Parameter).  Then I made a door tag to label it.  I added the shared parameter as an instance in a door family under "identity data".  It worked perfectly.  Multiple doors of the same type, different tag numbers, shows up perfectly in my door schedule.  Then I got to one door family and did it the exact same way as the others.  The instance parameter doesn't affect any of my geometry (that I know of at least, I haven't assigned it to anything, just added in the family type dialoge box).  However, when I hit okay, it tells me "reference planes are overconstrained."

Does this even make sense?

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Torschy

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It happened with another door family.  I think I just copied and editted one family to make the other, but they are doors I designed for masonry walls.  I attached one of the door families if someone could figure it out, though it's probably less of a hassle to just create a new one.

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archigrafix

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Shared parameters and constrains. Can you explain why they are related in your case? Overconstrain it seems to mean that multiple rules (locked dimensions / parameters) are connected to those reference planes. Makes sense?

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Marc Faber

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Torschy

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The planes have type parameters, not shared or instance, for width and height.  The new shared parameter I added is just text not associated with any geometry.  I played around with the doors afterwards and any changes to dimensions say the same error.  I figure it was a corruption in the file and just made new families anyway.  The doors were fully functional when I made them a year or so ago and I haven't edited them since.

I need to make new doors anyway.  I decided I want to nest families and add more parameters for door types and hardware so I can get rid of all the door families I made for each type and streamline things better.

I previously used Revit just to make renderings for previous projects.  This is our firm's first actual Revit project so I need more out of my door families anyway.

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WWHub

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Remember this.  You can add shared parameters to the project and assign them to any category.  If you were adding simple instance based text to these families, it could have been done through the project template witout any need to edit the families.

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Torschy

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My Door Schedule is 14 fields, at least 2/3 of which need to be type parameters since they are dependent on a limited selection of doors I will make types for. I'm not going to manually enter in all this info in future projects if I can set it up properly in this one.  This way I will reduce the risk of error and save time. 

That is kind of the point of Revit and shared parameters.

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