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.
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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.