Explain GD&T symbols and their uses.

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Accepted Answer

GD&T stands for Geometric Dimensioning and Tolerancing. It is a system of symbols and rules used to specify the geometry and allowable variation of parts.

GD&T is used to communicate design intent and ensure parts are manufactured correctly.
It includes symbols for features like flatness, perpendicularity, and concentricity.
GD&T can also specify tolerances for these features, allowing for some variation in manufacturing.
Examples of GD&T symbols include the datum, which is a reference point for measurements, and the position symbol, which specifies the location of a feature relative to other features.
GD&T is commonly used in industries like aerospace, automotive, and manufacturing.

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