I was born in Iran/gorgan in November 1957. I've sudied mechanical engineering and I'm working in the design and drafting department for 29 years.
Engineering drawing is the common language of mechanical engineers, and this language is not enough without GD&T.
This website is written primarily for the learner who is new to the subject of geometric dimensioning and tolerancing (GD&T). My primary purpose is to teach the graphic language of GD&T in a way that the learner can understand and use it in practical applications.