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How to edit a three-point curve that is part of a part

jan_didden
jan_didden Member Posts: 12 ✭
in Learning Center

I have a 3D part whose sides are an arc that is part of a circle. They were drawn by setting the two end points and then completing the shape, via the 3-point arc tool. Now I need to change the curvature of the arc but keep the endpoints (increase the diameter of the underlying circle). How do I do that? I tried the Edit Curve command but that doesn't work. I cannot just change the value of the diameter dimension because it is a derived dimension, not a defining dimension. I thought I could just pick the arc center point and move it up or down to change the curvature but I can't find a way to do that, maybe it cannot be done that way. Any ideas?

Jan

Best Answer

  • MDesign
    MDesign Member Posts: 1,461 PRO
    Answer ✓

    sounds like you need to investigate the constraints that are on your arc that might be limiting the behavior you’re looking for. Maybe a screenshot or document link might allow someone to help narrow down the issue..

Answers

  • MDesign
    MDesign Member Posts: 1,461 PRO
    Answer ✓

    sounds like you need to investigate the constraints that are on your arc that might be limiting the behavior you’re looking for. Maybe a screenshot or document link might allow someone to help narrow down the issue..

  • jan_didden
    jan_didden Member Posts: 12 ✭
    arc.png

    It is the rightmost 19mm dimension that controls the arc curvature. The reason it didn't work initially is that elsewhere I had simensioned the arc with the radius of a circle which made that 19mm a dependent dimesion. When I deleted those other dimensions (which were only added for documentation purposes) it all fell into place.

    Jan

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