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Calculation Of Tolerance Stacks Using Direct Position ...
AC 2009-138: Calculation OF Tolerance Stacks Using . Direct - Position APPROACH IN GEOMETRIC DIMENSIONING AND. TOLERANCING. Cheng Lin, Old Dominion University Page American Society for Engineering Education, 2009. Calculation of Tolerance Stacks Using Direct - Position Approach in Geometric Dimensioning and Tolerancing Abstract Formulas for the Calculation of Position Tolerance Stacks of Geometric Dimensioning and Tolerancing (GD&T) are presented. This Direct - Position approach shows that the formulas can be observed directly from the extreme positions of the holes specified in an engineering drawing. When compared to other approaches for Tolerance Stacks , this method can be applied to all three material conditions (Maximum Material Condition, Least Material Condition, and Regardless of Feature Size.) and is easier for students to learn and remember the formulas. A graphical demonstration Using Position control on two holes in an engineering drawing is applied to explain the approach.
(GD&T) are presented. This direct-position approach shows that the formulas can be observed directly from the extreme positions of the holes specified i n an engineering drawing. When compared to other approaches for tolerance stacks, this method can be applied to all three material conditions (Maximum
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