Hello, a question has just come up that I am trying to find an answer for. I obviously cannot show the print due to confidentiality.
Our default measurement criteria on a blueprint is GG. However, the hole in question has a GX modifier on it which overrides the default GG for the measurement of size.
The issue is that this hole also has a true position tolerance called out (back to three datums with no mmc or other modifiers shown). Do we measure the true position of this feature with a GX hole or the true position of a GG hole?
One party is arguing that the independency principle from iso 8015 applies and that the true position should be evaluated as a GG. The other party is arguing that the independency principle does not apply here because the true position is applied to the existing feature of size.
Can anybody help me clarify this? Ideally having a section from one of the ISO standards to back either side so that I can “officially” settle the debate.
Thank you!
submitted by /u/Spicyohio
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