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yeahmag |
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,468 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California ![]() ![]() |
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yeahmag |
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,468 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California ![]() ![]() |
Nah... The rig is designed for telescopes and is on a flat table. The table is accurate to .001" across the *entire* surface and the tool plate is accurate to .001" across a 3' length. This micrometer rig is over $10K and I can't even guess what that huge hunk of rock of a table cost.
We surfaced the plate on the same flat table to be sure and then ran the tool plate under the micrometer to make sure there were no deviations. 7 of the 8 tips all came back within .001". Just one came back at .003" out. This was absolutely repeatable. I did first check them with calipers, but the end of the taper is not machined and made it impossible to hold a tolerance. In an ideal world I would be measuring centerline to centerline of the ball and not keying off the flats at the end as I suspect they are not machined to a tight tolerance there. |
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