When manufacturing anything using thin materials that are to be bent, some spring-back is accounted for. That means forms have to be designed over-bent so the material (plywood bent furniture, guitar sides, copper sheeting, etc.) springs back to a functional shape. If an object contains multiple curves, the way to do that right now in Rhino seems to be to Explode the curves, then use the Bend command to bend each curve which changes their length, then Scale each curve to match the original curve length, then Move the curves back together end to end, and Rotate the curves to flow along tangents. Would be amazing to have a feature (could be called Tighten) that takes a given polygon, and tightens or loosens the geometry while keeping all curves intact and keeping the total length the same.
Cutaway Guitar Sides - Overbent.pdf (116.9 KB)
