Fancy optical? Have you never worn out a gage pin? I have had grinders destroy carbide pins on a single job checking parts.. and do you want to talk about an argument ?? YOU gave me this pin... and no, we do not continue to do business there, but I don't need more arguments in my life either...
We use optical measurement that gives us a 4 place readout. I'm not confident in the repeatability of that last digit but Inspection will write a non-conformance based on it, i.e a part that is 1" + /- .005 will fail at 1.0051. I'm pretty confident a gage R&R will not support that last digit...
We dimension typically to the MMC condition of the feature & tolerance accordingly. We almost always draft our parts (they're small, not tiny, usually under 1 x 1" with multiple functional features) & we also require the vendors to review their parting line, gating & tool geometry with us...
Looking for feedback on rounding during part inspection. I've read some older posts directed to the drafting standards ( which is what this forum is for) but I cannot find much re inspection & rounding. Is a +/- .005" a hard limit with no rounding ( +/- .005 = +/- .005000) or does the next digit...