In GD&T, the word control means to limit the variation of a geometrical measurement such as a dimension, angle, shape, etc. For example, a simple dimensional tolerance such as +/- .01 controls or limits the allowable variation of a dimension.
In GD&T, the word control means to limit the variation of a geometrical measurement such as a dimension, angle, shape, etc. For example, a simple dimensional tolerance such as +/- .01 controls or limits the allowable variation of a dimension.