I searched the forum with keyword “square” and found several posts, but none addressed my question. So, I’m presenting the attached PDF for comments.
My question is: How does the position Feature Control Frame (FCF) apply when the square symbol is used. A square is two features-of-size (FOS)...
Regarding two or more interrupted, coplanar surfaces like in figure 8-15 – see attached: My understanding over the years is that the extension lines between the four surfaces do not “connect” them. This is consistent with figure 8-15 where datums A and B are shown to single-out two of the four...
The attached drawing is the portion of a shaft where a combination guide and thrust bearing interfaces. The bearing surface is Babbitt and is oil lubricated.
I am trying to determine where the conflicts, if any, are between the size, circularity and straightness tolerances. The sketch is...
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...
My GDTP certification expired this past Monday. Unlike in the past, I did not get an (early) notification that it would expire and renewal forms and instructions. I have the e-mail address of the contact I used in 2013. But I got a "not deliverable" response to a message to him. I searched...
I have a somewhat unique application for GDT that I can find no examples of in the Standard or in any of the reference materials I have access to. So I’m requesting some assistance with some symbology and its interpretation. See attached partial sheet 1 and sheet 2 drawings
We have a...
It was mentioned in another post that a public copy of the draft for the next release of Y14.5 is available. Does anyone know where to find this for download?
We have a design application that requires "narrow" (scribe) radial reference lines for alignment at assembly. I have never seen an example in any literature for using GDT to control the location of lines relative to specified Datums. Because the line - like on a steel scale - has width - say...
I recently came across a design that incorporates an irregular features-of-size (FOS) as defined in paragraph 1.3.32.2 of ASME Y14.5-2009 Standard. The feature is a width type (two parallel planes) with the lower plane being (4) coplaner "pads" and the upper plane being (10) coplanar "pads" with...
