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Thread: cant rotate simple family without breaking constraints

  1. #1
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    cant rotate simple family without breaking constraints

    OK, so this should be a very simple family to create, or so I thought. I have an angled brace that I need to be able to rotate. I need it to be able to be placed face based from either side. its a simple L-ish shape and I created ref lines to try and control it. Anytime I try to flex it, it immediately breaks.
    I tried nesting it into a family with the rotation parameter but same issues.
    Any help would be greatly appreciated, I have included the family and screen shots showing my issue.
    Attached Thumbnails Attached Thumbnails cant rotate simple family without breaking constraints-l-angle-rotation.jpg   cant rotate simple family without breaking constraints-capture2.jpg  
    Attached Files Attached Files
    Last edited by Revit Face Punch; December 17th, 2018 at 06:12 PM. Reason: add info

  2. #2
    Mr. Revit OpEd
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    I don't have access to 2019 at the moment. You don't have to use a Reference Line to pull that off. Just make sure you define all of its proportions. Spacing between faces, length of the legs, angle between horizontal ref plane and make sure you align and lock the endpoint of the side that changes the angle to the origin reference planes.

    Last avoid flexing (in the family) to zero or 90. You'll probably get constraint errors trying to move away from zero or 90 afterward. Load the family into the project and you'll find you can use those angles without complaint.
    Attached Files Attached Files
    Last edited by Steve_Stafford; December 17th, 2018 at 06:16 PM.

  3. #3
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    The more I constrain it ,the faster the constraints break. I tried flexing the family you attached and it immediately gave me an error also.
    I have tried constraining the extrusion in and out of sketch mode,
    I have tried nesting it into a family for rotation. It is making no sense because I have created families with separate double directional rotations that can move in over 360° separate of each other with no issues but I try to get this one item to rotate and it just wont.
    Attached Thumbnails Attached Thumbnails cant rotate simple family without breaking constraints-capture3.jpg  
    Attached Files Attached Files
    Last edited by Revit Face Punch; December 17th, 2018 at 06:31 PM.

  4. #4
    Mr. Revit OpEd
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    I thought you were flexing one leg only...so that's what my mockup is intended to do. You can break any family if you change things beyond their intent. Why do you need to rotate it in the family? Just rotate it in the project.

    Maybe back up even further, what is this "angle" in real life? A steel shape? Bent sheet metal?

  5. #5
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    I have created it simply as faced based hoping to be able to just rotate it in the model but it doesnt give me the full rotation. Its an angle connection for steel so it literally needs to rotate in every direction because it needs to be able to be used on any and all planes which is why I started with a face based template. The problem is, when I get it into the model it will allow me to rotate in only one direction and then tells me its unable to rotate in the other directions. I am currently using 2 versions of it in one family with visibility settings for the direction I need it to go but that is a file size issue I am trying to avoid.

  6. #6
    Senior Member DavidLarson's Avatar
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    Try controlling both reference lines from both sides.

  7. #7
    Mr. Revit OpEd
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    Got a picture of it in use?

  8. #8
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    David, Im not sure what you mean.
    Steve here is an image of it in use. I need to apply it to an area where those same angled beams will be rotated 90° .
    Attached Thumbnails Attached Thumbnails cant rotate simple family without breaking constraints-5.jpg  

  9. #9
    Mr. Revit OpEd
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    Try this......doesn't use any reference lines.
    Attached Thumbnails Attached Thumbnails cant rotate simple family without breaking constraints-connect.png  
    Attached Files Attached Files
    Last edited by Steve_Stafford; December 17th, 2018 at 07:34 PM.

  10. #10
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    Quote Originally Posted by Revit Face Punch View Post
    OK, so this should be a very simple family to create, or so I thought. I have an angled brace that I need to be able to rotate. I need it to be able to be placed face based from either side. its a simple L-ish shape and I created ref lines to try and control it. Anytime I try to flex it, it immediately breaks.
    I tried nesting it into a family with the rotation parameter but same issues.
    Any help would be greatly appreciated, I have included the family and screen shots showing my issue.
    The main thing to remember about doing anything with reference lines attached at the same point is that auto sketch dimensions influence them. If one reference line has a different host than the other, there will be no issues. Is one of the reference lines using the other as a host or are they both on the center left/right plane?

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