I have a "European" drawing made in 2013 with Datum Feature Symbols attached to theoretical center planes and axis lines. Y14.5-2009 does not allow this - must be physical features. There is no statements/notes on the drawing telling what document(s) use to interpret the GDT. I assume the current revision of ISO 1101 is in effect. I have no copies of ISO GDT standards, which I know are very numerous , to refer to. I think ISO allowed this datum practice in the distant past but is now aligned with Y14.5 conventions. Can anyone tell me if this is acceptable before I inform our (potential) customer of the discrepancy.
Certified Sr. GD&T Professional
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Since the later 1980s, manufacturing companies have seen over 3 percent in labor output year on year, with most of this productivty enhancement occuring because of the optimization of repetitive tasks. Download Now