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GD&T true position question

thread174-238881

GD&T true position question

GD&T true position question

(OP)
Where in the ansi standards does it show the true position formula 2 * SGRT( X to the 2 + Y to the 2)?  

RE: GD&T true position question

I'm not sure that it is in the standards.  You may want to ask over on forum1103: Drafting Standards, GD&T & Tolerance Analysis.

I couldn't see it in ASME Y14.5M-1994.  B4 does give the equations for calculating position tolerance from the sizes of the male/female components.

The equation you give is for converting +- coordinate dims to position, instead 14.5 concentrates on determining the pos tol from true function, hence B4.

KENAT,

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