Free GD&T Guide
Effective communication and consistent measurement across all engineering disciplines and processes are essential for designing and manufacturing the highest quality products. Geometric dimensioning and tolerancing (GD&T) is the key to achieving these goals.
Geometric Dimensioning and Tolerancing (GD&T) was developed to address the many problems that had been encountered over the years as organizations tried to describe their part geometry. It is a “language” composed of symbols used to efficiently and accurately communicate geometry requirements for related features on components and assemblies. GD&T is very important to understand detailed engineering drawings and has been successfully used by engineers, designers, and manufacturers in the automotive, aerospace, electronics, commercial design, and manufacturing industries. It helps to specify and control the form, location, and orientation of the features of components and manufactured parts.
In geometric dimensioning and tolerancing (GD&T), a unique set of GD&T symbols are used to define the relationships between part features and measurement references. Designers and engineers utilize this international language on their drawings to accurately describe part features on the basis of size, form, orientation and location.
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