Training Trends: Nine Myths about Geometric Dimensioning and Tolerancing
Common myths of GD&T are put to rest.
Geometric dimensioning and tolerancing (GD&T) is an international language used on drawings to accurately describe a part. The language consists of a well-defined set of symbols, rules, definitions and conventions that can be used to describe the size, form, orientation and location tolerances of part features. Geometric tolerancing is an exact language that enables designers to say what they mean on a drawing, thus improving product designs. Production uses the language to interpret the design intent, and inspection looks to the language to determine setup. By providing uniformity in drawing specifications and interpretation, GD&T reduces controversy, guesswork and assumptions throughout the manufacturing and inspection process.