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Thread: Newbie: Cornice profile

  1.    #1
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    Newbie: Cornice profile

    Hey all!

    I just started working in Revit about a month ago. My previous 3D experience has been with mechanical programs, such as Solidworks and Inventor. With that said, I think that I may be using an approach that some of you might do differently because my mindset is to draw the rough shape, then cut away what I don't want.

    I am currently working on an in-place mass and a cornice profile has me pulling out my hairs.

    My approach was to draw the rough profile, extrude it out and then join the three sides together at the corners. I couldn't, to my knowledge, perform a sweep in this case because the three sides are not all equal. The two parallel sides (North and South) are symmetric, however the East (oddball) has a larger profile area. Once I got those complete, I drew the profiles to perform the cut. This didn't work because I couldn't join the corners as I did with the basic mass. I then tried just sweeping the coping return (that's all I'm really worried about anyway) and it performed the way I wanted, but it did not work because I got "a circular chain of references". So that sweep cut (Void form) was invalid.

    I've tried drawing reference lines to align bits and pieces to, but that skews everything out of whack and I get errors like it's my job.

    I don't know what to do! Can anyone help me out?
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  2.    #2
    Moderator cellophane's Avatar
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    Create the cornice as an extrusion, then use a void (extrusion or sweep) to cut the various parts out. In the attached family (general principle is the same for an in-place mass) I have a void to cut the legs, and a separate void cutting the front piece.
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    cganiere likes this.

  3.    #3
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    So are you saying to create the cornice as a "square" extrusion, then cut the angles out, as depicted in your .rfa?

    I've tried the sweep for just the coping return, as that would logically work because the return is the same distance on all three sides. That's when I get the circular chain of references error.

    I'll try a different approach today, since my brain isn't fried yet lol.

    What exactly does that error mean when I see it?

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    Moderator cellophane's Avatar
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    without seeing it I'm not entirely sure why it isn't working. I just added another sweep to the shape I had and it worked fine..

  5.    #5
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    I got it figured out. I just had to play with it for a bit.

    Since all three sides weren't symmetric, I couldn't perform a sweep. I don't know if I have it done correctly, but it's done and it looks the way it's supposed to lol.

  6.    #6
    Moderator cellophane's Avatar
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    Quote Originally Posted by JT44 View Post
    ...but it's done and it looks the way it's supposed to lol.
    Some days that's all that matters

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