vi • Drafting problems follow the last chapter of this textbook. The drafting problems appear as pictorial illustrations, design layouts, or written instructions. The drafting problems require you to determine the correct orthographic views and/ or 3D model layout, dimensions, and GD&T placement. • The drafting problems range from basic to advanced. Complete the drafting problems using 2D or 3D CADD techniques as determined by your course objectives. GD&T is a natural fit for CADD applications. • This textbook emphasizes drafting rules and standards and illustrates proper use of symbols to show correct drafting applications. Organization The sequence of chapters in Geometric Dimensioning and Tolerancing is similar to the organization of topics in ASME Y14.5-2018. The following summarizes the chapter sequence and coverage of related topics in ASME Y14.5-2018: Chapter 1: Geometric Dimensioning and Tolerancing Essentials • Introduction to dimensioning and tolerancing and GD&T. • GD&T history, standards, and benefits of GD&T in design and manufacturing. Chapter 2: Dimensioning and Tolerancing Practices • Dimensioning and tolerancing definitions and general tolerancing practices. Chapter 3: Introduction to Symbols and Terms • GD&T symbols and terminology. Chapter 4: Datums • Datum feature and datum target symbols, terminology, and applications. Chapter 5: Material Condition and Material Boundary • Material condition and material boundary symbols, terminology, and applications. Chapter 6: Form Tolerances • Form tolerances and applications. Chapter 7: Orientation Tolerances • Orientation tolerances and applications. Chapter 8: Positional Tolerances (Part I) • Introduction to positional tolerances and applications. Chapter 9: Positional Tolerances (Part II) and Virtual Condition • Positional tolerances, virtual condition, resultant condition, and applications. Chapter 10: Profile Tolerances • Profile tolerances and applications. Chapter 11: Runout Tolerances • Runout tolerances and applications.