When I get a print from a customer with obtuse or acute bends I immediately look to see how they dimension the bend locations. If they are dimensioning the intersection points I request them to change to the center of the bend radius. The intersection points are not a physical location, they are in space and cannot be controlled. In order to get these measurements accurately you need to use a CMM. With a gage pin and a height gage I can measure where the center of the bend is. Does anyone know of an ANSI spec, or something from ASQ that agrees with this? I know dimensioning to intersection points is a commonly accepted practice, but it makes it difficult when trying to actually make parts. I believe this is a point where what is easy on paper isn't so easy to reproduce in the real world. Any insight will be appreciated.
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