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Thread: Parametric curtain wall

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    Parametric curtain wall

    Hello I am trying to create a Parametric Curtain Wall Window that Opens in the Family editor in Revit 2019.

    I thought I correctly understood the creation process; it uses reference planes, extruded forms which are locked to the reference planes, a reference line which is locked to the planes using the align, dot and tab method.

    I thought this would be easy but not so.

    I have reached the stage where I am converting dimensions into parameters.

    The formula for Panel height should be simple enough – Height -100. However when I enter this I get the following error message.

    “A reporting parameter can be used in a formula only if its dimensioning references are all to host elements in the family. “

    Any idea what went wrong?

    I enclose a file created in Revit 2019.

    Thanks in advance
    Attached Files Attached Files
    Last edited by Munkholm; August 5th, 2019 at 09:03 AM.

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    Dave Jones's Avatar
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    I don't think that what you are trying to do with a curtain panel is possible. A curtain panel needs a curtain wall grid to act as a host so in order to create an operable window I'd think that you'd be better off creating a window family with a rotation parameter. Or, if you just need to show windows in an open or closed position a simpler way would be to create a window family with Yes/No visibility parameters for one open and one closed.

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    What I am trying to do is entirely possible. You can create a curtain wall panel with a rotation parameter in the family editor.

    You create a curtain wall with multiple panels as a project. You unpin one existing panel and drop in the new one.

    There is a video on Youtube of this process by someone called the Balkan architect. He makes it look very easy but unfortunately it is not.
    Last edited by Munkholm; August 5th, 2019 at 09:03 AM.

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    Senior Member kamranmirza's Avatar
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    When making a rotational parameter in a family there is a distinction between a reference PLANE and a reference LINE.

    Without studying your case in detail, this may perhaps be the issue you are encountering.

    See blog link below:

    https://aectechtalk.wordpress.com/20...evit-families/
    Last edited by kamranmirza; July 31st, 2019 at 10:11 AM. Reason: Language made simpler

  5.    #5
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    Quote Originally Posted by Ecotech Kid View Post
    What I am trying to do is entirely possible. You can create a curtain wall panel with a rotation parameter in the family editor.

    You create a curtain wall with multiple panels as a project. You unpin one existing panel and drop in the new one.

    There is a video on Youtube of this process by someone called the Balkan architect. He makes it look very easy but unfortunately it is not.
    I'd love to see the final result if you get it to work.

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    Forum Co-Founder Twiceroadsfool's Avatar
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    The error you are getting just has to do with Reporting Parameters and formulas. It wont stop you from what you want to do (which is 100% possible). You just cant leverage the reporters in constraints, the way you are trying. Just constrain that RP or RL with the 100, inshread of Height-100, and the problem goes away.

    Making Windows from Curtain panels happens all the time.

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    Quote Originally Posted by Twiceroadsfool View Post
    Making Windows from Curtain panels happens all the time.
    variable angle operable windows? I may be retired but I'm still learning

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Yep! (need more characters)

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    Forum Co-Founder Alfredo Medina's Avatar
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    I just made a screen capture from a post of mine in the Autodesk forums, from June 2018. The text describes the process. I hope it helps the OP to understand how to do it. This sample was made using the curtain panel template. This could be made with the other template, the curtain wall window template, which would give me a window category already. It depends what one wants to do. But it should be possible with either template, either category.

    Parametric curtain wall-2019-07-31_15-52-01.png

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    Forum Addict GMcDowellJr's Avatar
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    Quote Originally Posted by Dave Jones View Post
    variable angle operable windows? I may be retired but I'm still learning
    You mean angled in elevation, yes?

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