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Old 04-11-2017, 01:25 PM   #7 (permalink)
freebeard
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That's a very interesting example. I don't think those are compound curves.

Starting with a rectangular sheet, you can make a simple conic curve starting from one corner, or have a flat diamond in the center with the four corner/tips bent or curved. Mixing the two might set up tensions in the sheet that would fight the fasteners on every jiggle, but maybe #1 on the side triangles and #2 on the top?
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