If a Blueprint calls for ASME Y14.5 wouldn't this be the standard rules apply. How would I know if and when to apply ISO? I have yet to see anything on a blueprint stating this. The reason I bring this up is for the good old Profile callout. Before I make an argument, I want to cover all my resources. Customer already claims in an email that PC-DMIS is not capable of doing this. I and everyone on here already that's horse_S_H_I_T. But its Friday and I'm ready to P_I_S_S someone off
VinniUSMC, I'm not defending PC-DMIS by any right. I have been to 3 different GD&T classes. Didn't go to PC-DMIS classes to learn GD&T, went there to learn PC-DMIS. Not bragging or gloating here. 82 version, 94, and 09. Different instructors. Same results on the ASME Standard. Now after actually reading this from ASME standard. It tells me to do the same. If you see it differently, that's cool. You think your right, I know your wrong. but I do still agree with you on T value is the true way to go. Oh and yes that is out of the book. I will copy it, and post it later so others can interpret it the way they want. I will say this again the word SUM, usually means ADDITION
That's the ISO way. This whole post has been about the fact the ISO specifically says "Multiply max x2", and ASME says "Note that no single actual value may be calculated for comparison to the tolerance value in the feature control frame".
Even Don Day and his disciples can be wrong. I witnessed one at the PolyWorks Conference, who said exactly the same thing "multiply max by 2". That's what they've done in PolyWorks 2017. Until ASME Y14.5-2009 revision is released (assuming the rumors are true), it's a simple statement of fact, to quote the last major mathematical definitions standard "Note that no single actual value may be calculated for comparison to the tolerance value in the feature control frame".
I don't know Don Day and Tec Ease, But what I shared on here is from The ASME and ISO books. Like I said I did the research, was out the money, but in my eyes it helped educate me, and others along the way