Form tolerance is a geometric dimensioning and tolerancing (GD&T) concept used to define the permissible variation in the shape of a part's feature, ensuring it remains within specified limits. It helps in maintaining the functionality and interchangeability of parts by controlling deviations from the ideal geometrical form without reference to any other feature.

Form Tolerance

Form tolerance

Geometric Dimensioning and Tolerancing (GD&T) is a system for defining engineering tolerances and design intent through symbolic language on engineering drawings and computer-generated 3D models. It ensures that parts fit and function properly by specifying allowable variations in form, orientation, and location, which enhances communication and reduces manufacturing costs.

geometric dimensioning and tolerancing

permissible variation

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