huangyhg

critical on drawings
hello all,
i have a question about the addition of "critical" to a specific dimension on a drawing. our sales guy wants to add it as a sort of flag to say "hey guys, if you're going to miss a dimension, don't let it be this one." the tolerance on the dim is sufficient and it's really not any more critical than any of the other dimensions the only difference is if it's out of tolerance, it will show up later in a big way. i'm against putting this note on the drawing as i feel it may cause someone to think that dimensions not indicated as critical, are somehow unimportant. is there standard out there that addresses the use of critical on a drawing? i hope i've been clear on the issue.
thanks
powerhound
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if tolerances are designed properly, any dimension that is out of tolerance will cause the part to not work.
if you have dimensions that can be "out of tolerance", but the part is still acceptable, the tolerances are incorrect.

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