It is all too common in the industry: A part design is created and sent out for production only to hit repeated snags as questions arise about datums, locators, symbols, and values. Even simple misunderstandings, such as where the geometric dimensioning and tolerancing (GD&T) lines terminate, have resulted in serious delays (in some cases, of more than a month) and nonconformance issues, which resulted in wasted products.¹

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