Because “True Position” refers to the exact position of a feature as defined by basic dimensions, while the Position symbol is used to indicate the positional tolerance –the allowable amount of variation of that feature from its True Position. The difference between True Position and position ...
The Position tolerance is the GD&T symbol and tolerance of location. The True Position is the exact coordinate, or location defined by basic dimensions or other means that represents the nominal value. In other words, the GD&T "Position" Tolerance is how
Standard data is the measure of normal readings and outputs for a given system or field. Tolerance and deviations can be measured according to the standard for various degrees of variation. Both proper development and interpretation of standard data are necessary ...