Thank you for the replies. I spoke again with my manager today. He believes I can measure the 1.997 diameter with a bore mic or I.D. mic. The 2.201 dimension with I.D. mics and .496 dimensions with dial calipers.
What are the resolutions of the ID mic and dial calipers? In a perfect world the measurement tool should have 10 times more resolution than the tolerance of the dimension. In a worst-case situation it should be at least four times minimum.
For the 1.997" diameter, ideally you'd want a resolution of .0001", or .00025" minimum. If your ID mic has only .0005" or .001" resolution, you can't expect reliable results. For the .496" your total tolerance is .002". Ideally you'd want your calipers to have .0002" resolution or .0005" minimum. The 2.201" dimension has a higher tolerance, so it should be doable.
He thinks I should be able to set the part up on a v-block and use a dial indicator to check the profile between A and B. Do you agree with him? If not please explain to me so I can reason with him.
I can't see how this can be done, since the datum is eccentric with the center point of the profile. At best, I think you could scribe some lines on the surface and measure their X-Y coordinates to see if the points are in tolerance. I'd be interested to see how your manager thinks it can be done though - can you ask him to show you a setup that will give you the desired results, and post them here?
