GD and T and engineering diagram with tolerance

Question

Accepted Answer

GD&T (Geometric Dimensioning and Tolerancing) is a system used in engineering to define and communicate tolerances on engineering diagrams.

GD&T is a symbolic language used to specify the dimensions, form, orientation, and location of features on engineering drawings.
It allows engineers to communicate design intent and manufacturing requirements more precisely.
GD&T uses various symbols, such as position, concentricity, flatness, and perpendicularity, to define tolerances.
By using GD&T, engineers can ensure that parts and assemblies fit together correctly and function as intended.
For example, a GD&T symbol may specify that a hole must be positioned within a certain tolerance relative to other features on a part.
GD&T is widely used in industries such as automotive, aerospace, and manufacturing.
It helps to reduce ambiguity, improve quality control, and facilitate interchangeability of parts.
Proficiency in GD&T is important for engineers involved in design, manufacturing, and inspection processes.

Accepted Answer

First and third angle projection

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