11-02-2023
10:39 AM
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11-02-2023
10:39 AM
I'm not sure exactly what you're asking. If the reddish dashed Arcs are to indicate that the ends are circular, and if you're talking about rolled-out-flat sheet-material shapes for the surfaces of this kind of thing:
then the top and bottom sections should not be too hard, with a sine-wave edge where they meet the middle section, the same as with a 90° elbow. But the "conical" middle section is not just conical. It's an elliptical cone [I made the 3D version by LOFTing between Ellipses at the bends, drawn on the faces of Sliced Extrusions from the circular ends].
Is my assumption about what you're after correct?
Kent Cooper, AIA