I think I'm starting to get it now. If I say 5.5 +/-0.5, my manufacturer would have to measure this accounting for the error and precision of their gauge. So in your gauge example with a maximum error of 0.05 and a resolution of .01 I'd have to have a measurement of:
6.0 maximum limit...
Thanks, Nescius. Again, my whole question is just hypothetical and trying to make sure I understand Y14.5-2009 accurately. My biggest concern is that if I have a feature that is important and I put a reasonable tolerance on it, say 5.535" +/-.005". My manufacturer measures it to be 5.5400" and...
I think I misread something that led me to my circular comment. The statement was:
"For the practical side, if your part is dimensioned to a single decimal place tolerance, why are you inspecting that part to 4 place accuracy. The part would pass when inspected with a device capable of only 1...
Hey, thanks for all the feed back.
Perhaps it's cleaner to state that the limits or dimension and tolerance set the absolute min and max (zeros to infinity), but that the significant digits on the print represent the precision to which it should be measured.
In the extreme case I listed, a...
2.2 DIRECT TOLERANCE METHODS
(a) Limit Dimensioning. The high limit is placed above the low limit.
(b) Plus and Minus Tolerancing. The dimension is given first and followed by a plus and minus expression of tolerance.
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2.4 INTERPRETATION OF LIMITS
All limits are absolute...
