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Need some help with dimensioning elliptical arcs

Question asked by Tasher Willet on Dec 15, 2012
Latest reply on Dec 15, 2012 by Anna Wood



We use a lot of tubing relief cutouts in sheet metal parts which are folded. The relief cutouts are a constant radius when folded, but are elliptical when flattened. We need to find a simple, repeatable way to dimension these in flat pattern form, because our parts are laser cut by one vendor and folded in-house, requiring two drawings. Any suggestions would be greatly appreciated. Thanks,