Proper Terminology
Proper Terminology
(OP)
I remember when Y14.5 Standard for Dimensioning and Tolerancing first was introduced, the term applied for the tolerance of a hole location defined by basic dimensions was "True Position". Later, the term was changed and became "Position". Does anyone know if it has been changed back to "True Position" and/or what the current proper term is?





RE: Proper Terminology
RE: Proper Terminology
Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP3.1 / PDMWorks 05
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716
RE: Proper Terminology
in both copies of Y14.5M, True Position is defined as "The theoretically exact location of a feature established by basic dimensions."
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Ben Loosli
CAD/CAM System Analyst
Ingersoll-Rand
RE: Proper Terminology
The tolerance zone is located at true (exact) position, and the feature is located within that tolerance zone, thus a hole "is at true position within .xxx dia" would be an acceptable statement.