What is GD&T , How we can measure and through which instruments

Question

Accepted Answer

GD&T stands for Geometric Dimensioning and Tolerancing. It is a system used to define and communicate engineering tolerances.

GD&T is a symbolic language used to specify the dimensions, form, orientation, and location of features on a part.
It allows engineers to accurately communicate design requirements and ensure proper fit, function, and interchangeability of parts.
GD&T uses various symbols, such as position, concentricity, flatness, and perpendicularity, to define tolerances.
Measurement of GD&T can be done using a variety of instruments, including coordinate measuring machines (CMM), optical comparators, and digital height gauges.
These instruments provide precise measurements of the geometric features defined by GD&T symbols.
For example, a CMM can measure the position and orientation of holes, slots, or other features relative to a reference point.
GD&T is widely used in industries such as automotive, aerospace, and manufacturing to ensure the quality and interchangeability of parts.

Accepted Answer

Geometrical dimensioning and tolarancing allows for larger tolerances for for less important design features

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