I have been tasked with explaining some items concerning a program I inherited concerning Xactmeasure Profile. I have a two part question. Attached is a pic of the profile dimension results and the D datum results. First, the call out is |Profile|0.010|A|D(M)|B|. A is a plane, D is an intersect of a cylinder and plane (constructed circle for size) and B is a line. The attached results show the D Datum size at 0.4683 and the nominal at 0.472. I am trying to figure out the Bonus of 0.0113. Is it the bonus of the feature plus it's position tolerance, see second attachment? I have looked over 2.8, 4.11.5, 4.16.2, 4.16.4 & 4.17 and now my head hurts. This one I am confused as the standard shows the other way around, Datum is profile and feature is position.Second, if datum A is zplus and B is in the X direction, why whould I have a Y shift? Please let me know if you need more info. My previous job only used legacy reporting and this one has a lot of parts utilizing this boundary condition.
If you GOOGLE that paper you will find it in no time. Paper was written by Rod Jensen years ago. He is the current chairman for Y14.5.1 math committee ( since I talked to him last ) . Cheers to you if you have been on the forum lately ! I miss your training classes in MN !
My issue is that I am trying to write the program for both V4.2 & 2013MR1. We only use the 2013MR1 on all our machines. It's our customer that is running in 4.2, who has more machines than us. We have to have correlation with our customer. Attached below is part of the drawing & new results. Now, an additional note, I did discover the previous programmer whom I took over was using a constructed feature for the Datum D and he had it as an internal rather than an external feature. I now get matching bonus carried from the true position to the profile. I am reviewing the document above to help with my TP construction. I appreciate everyone's help and I will update everyone once I have resolved.
Forum_Profile_20150420(2).pdf
