We are doing a short run project for a company. We are a stamping factory. They want to stamp out a flat "V" shaped retention spring out of 0.018" thick steel and measure 0.010" flatness,
unrestrained. I usually deal with material that is thicker than this. Anyone have any ideas?
unrestrained does not mean you can't hold it with something, it (IMO) means you can't change the sharp of the part with what you are holding it with. Rough guess on the size of the thing is 0.75" x 0.825" (based on your image, with it being 0.018" thick), I would get a binder clip and hold it by the smallest possible edge, then using a probe that is almost parallel to the surface (not perpendicular) and measure a bunch of points and construct a plane and report the flatness.
unrestrained does not mean you can't hold it with something, it (IMO) means you can't change the sharp of the part with what you are holding it with. Rough guess on the size of the thing is 0.75" x 0.825" (based on your image, with it being 0.018" thick), I would get a binder clip and hold it by the smallest possible edge, then using a probe that is almost parallel to the surface (not perpendicular) and measure a bunch of points and construct a plane and report the flatness.
