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  1. #11
    Luminous Being
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    My $0.05 I am not an expert in 3d but this is my go at your problem. As full 3d. The arch cutouts should be located true tangent to the curved wall. If you want a 2d+ drawing then its possible to think about old fashioned flat plate unfolding eg funnel, by using arc lengths and lines vertically then a parabola joining the lines. yes a lisp would do that.

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  2. #12
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    Searching around, this type of question appears quite often but all I have found are references to Inventor and sheet metalwork. As BIGAL says in Autocad the only way I can see it being done is using mathematics (arc length, using center,start,length and then from there add in a height) but that only gives a series of points that you would need to join up, and you would need to decide what accuracy you need for that. And that only gives you a line drawing or points for a spline which is fine for a visual representation, but I don't know how you could then convert that to a true 3D model, such as a mesh or solid.

  3. #13
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    Have a look at
    http://www.cadtutor.net/forum/showth...545#post624545
    too.
    Regards and good luck
    Jochen

  4. #14
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    Thank you so much for your help Steven-g! i will try the link and see if that technique works.

  5. #15
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    Thank you scj

  6. #16
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    Your technique appears promising. Thanks BIGAL

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