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3D modeling is the future of design, and ASME Y14.41 sets the rules. Y14.41 extends ASME Y14.5M into the 3D world.

The development of this National Standard was initiated at the request of Industry and the U.S. Government.

The Y14.41 standard establishes requirements, and references documents applicable to the preparation and revision of digital product definition data, referred to as data sets. Y14.41 defines the exceptions and additional requirements to existing ASME standards for using product definition data sets or drawings in 3D digital format. This standard supports two methods of application: model only, and model and drawing in digital format.

The structure of the standard begins with the requirements common to both methods (model only, and model and drawing in digital format), and then branches to the other sections that have differing requirements for each method.

As well, it provides a guide for the many computer aided design (CAD) software packages to develop better modeling and annotation practices for CAD and engineering disciplines.

ASME Y14.41 Digital Product Definition Data Practices - 2003 - Table of Contents:

• 1 General
• 1.1 Scope
• 1.2 Structure of Standard
• 1.3 Figures
• 1.4 Reference to This Standard
• 1.5 Units
• 1.6 Text in Figures
• 1.7 Symbols
• 1.8 References
• 1.9 Definitions
• 2 Data Set Identification and Control
• 3 Data Set Requirements
• 4 Model Requirements
• 5 Common Requirements For Product Definition Data
• 6 Notes and Special Notations
• 7 Model Values and Dimensions
• 8 Plus and Minus Tolerances
• 9 Datum Applications
• 10 Geometric Tolerances
• Mandatory Appendix I Symbols