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ISO 1101

ISO 1101 is an international standard that specifies the fundamental principles and rules for geometric dimensioning and tolerancing (GD&T) in technical drawings and product specifications. It defines a symbolic language for communicating design intent, including tolerances for form, orientation, location, and runout, to ensure functional requirements are met during manufacturing and inspection. This standard is essential for precision engineering, quality control, and interoperability in industries such as automotive, aerospace, and machinery.

Also known as: ISO 1101:2017, Geometric Dimensioning and Tolerancing, GD&T, ISO GPS, Geometrical Product Specifications
🧊Why learn ISO 1101?

Developers, especially those in mechanical engineering, CAD/CAM, or manufacturing software, should learn ISO 1101 to create accurate technical documentation, interpret design specifications, and develop applications that support GD&T analysis or automated inspection. It is critical when working on projects involving 3D modeling, CNC programming, or quality assurance systems where precise tolerances impact product performance and compliance with international standards.

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