Zero Position - No Material Modifier - Sortof

Is this a 'legal' callout? We have 4 holes thru the face of a cylindrical part. You know the drill - I can't include the actual print. If need be, I can mock something up.
Datum A = OD, Datum B = Top plane of cylinder, Datum C = 1 of the 4 holes. Should there not be a material modifier here on the position tolerance itself?? Or is the effect the same b/c Datum C is one of the 4 holes?

I'll contact our customer...but they won't likely respond for a month or two...

Parents

JacobCheverie over 1 year ago

I'm glad you received clarification from the customer. Without having a material modifier on the tolerance zone, the size of the tolerance zone can never change. Therefore, if it is defined as a zone of zero size (with no possibility of changing), then there actually doesn't exist a tolerance zone and thus it can never be occupied.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Reply

JacobCheverie over 1 year ago

I'm glad you received clarification from the customer. Without having a material modifier on the tolerance zone, the size of the tolerance zone can never change. Therefore, if it is defined as a zone of zero size (with no possibility of changing), then there actually doesn't exist a tolerance zone and thus it can never be occupied.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Children

No Data