GD&T Full Syllabus

Introduction to Geometric Dimensioning & Tolerancing (GD&T)

• Overview of GD&T concepts and standards
• Importance of GD&T in mechanical engineering, manufacturing, and quality control

Engineering Drawing Basics (GD&T Prerequisites)

• Engineering drawing fundamentals
• Orthographic projections and dimensioning rules
• Symbols, line types, and drawing interpretation

Fundamental Rules of GD&T

• GD&T basic rules and principles
• Rule #1 (Envelope Principle) and Rule #2
• Virtual condition and maximum material principles

Datums and Datum Reference Systems

• Datum features and datum targets
• Primary, secondary, and tertiary datums
• Datum reference frames and functional datums

Feature Control Frame (FCF)

• Structure and components of FCF
• Tolerance symbols, datum references, and modifiers
• Reading and applying feature control frames

Material Condition Modifiers

• Maximum Material Condition (MMC)
• Least Material Condition (LMC)
• Regardless of Feature Size (RFS)
• Bonus tolerance and virtual condition

Form Tolerances in GD&T

• Straightness tolerance
• Flatness tolerance
• Circularity (Roundness)
• Cylindricity

Location Tolerances

• Position tolerance
• True position calculation
• Location control using datums

Profile Tolerances

• Profile of a line
• Profile of a surface
• Applications of profile tolerancing

Runout Tolerances

• Circular runout
• Total runout
• Applications in rotating components

Symmetry and Concentricity

• Symmetry tolerance definition and use
• Concentricity tolerance explained
• Practical limitations and alternatives

Tolerance Stack-Up Analysis

• 1D and 2D tolerance stack-up
• Worst-case tolerance analysis
• Statistical tolerance analysis

GD&T for Manufacturing

• GD&T best practices for machinists
• Functional tolerancing for production
• Cost-effective tolerance design

GD&T for Inspection and Metrology

• GD&T inspection methods
• Use of CMM and gauges
• Measurement techniques and verification

Reading and Interpreting GD&T Drawings

• GD&T symbols interpretation
• Drawing examples and walkthroughs
• Common GD&T mistakes and corrections

GD&T Case Studies and Real-World Applications

• Industrial GD&T examples
• Automotive, aerospace, and manufacturing case studies

GD&T as per ASME Y14.5 (Latest Revision)

• ASME Y14.5 standard overview
• Differences between older and latest revisions
• Compliance with international GD&T standards

GD&T Interview and Exam-Oriented Topics

• Frequently asked GD&T interview questions
• Certification and competitive exam preparation
• Key GD&T concepts for job roles

GD&T Software and Tools (Optional but Useful)

• GD&T in CAD software (AutoCAD, SolidWorks, CATIA, NX)
• GD&T inspection tools and CMM software
• Digital GD&T analysis tools