EL506 - Advanced Geometric Dimensioning and Tolerancing (GD&T) - Y14.5 has been added to your cart.

Advanced Geometric Dimensioning and Tolerancing (GD&T) - Y14.5

Gain advanced knowledge of geometric dimensioning controls for mechanical engineering drawings per the ASME Y14.5 Dimensioning and Tolerancing standard.

This Standard was last reviewed and reaffirmed in {{activeProduct.ReaffirmationYear}}. Therefore this version remains in effect.

Advanced Geometric Dimensioning and Tolerancing (GD&T) - Y14.5
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  • Location and Date
    Available Seats
    List Price
    Member Price
  • Dec 13 2021-Jan 24th, 2022


    List $695
    Member $595

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This advanced, online, instructor-supported course thoroughly covers some of the more used geometric dimensioning controls used on mechanical engineering drawings. The basic applications of position are explained in greater detail including fixed and floating fastener, zero tolerance, size feature datums, and composite vs. two single segments. How to control the size and location non-size features are also explained. Coaxial relationships and control of rectangular features is also covered.

Special Requirements
Possession of the ASME Y14.5 - 2009 Dimensioning and Tolerancing standard is required.

  • You Will Learn To
  • Develop an in-depth understanding of GD&T
  • Explain basic applications of position and size concepts
  • Identify practical tools that you can apply on the job

Who Should Attend
Professionals who use the ASME Y14.5 Dimensioning and Tolerancing standard, who work in design, drafting, quality, procurement, tooling, production, and manufacturing

To take this course you should have a personal computer, Web browser, Internet connection, and software to display PDF files (such as Adobe Reader).

About the Instructors

Patrick J. McCuistion, PhD, GDTPS, was an Associate Professor in the Engineering Technology and Management Department at Ohio University for 25 years. He taught Engineering Graphics, Geometric Dimensioning and Tolerancing, Dimensional Analysis, Quality Management Systems, Microsoft Office Suite, and Technical Writing. Prior to that, he taught three years at Texas A&M University and one year at Pittsburg State University. He worked eight years in various engineering design, drafting, and design and drafting checking positions. He has provided instruction in geometric dimensioning, dimensional analysis, gage and fixture design, and dimensional metrology to industry, military, and educational institutions since 1986. He is certified as an ASME Geometric Dimensioning Tolerancing Professional – Senior grade and as a ADDA Mechanical Drafter.
Dr. McCuistion has authored one book on geometric dimensioning, three ASME University internet courses on Drawing Interpretation, Basic Geometric Dimensioning and Advanced Geometric Dimensioning, and two ASME ABC internet courses covering Drawing Formats, Line Conventions and Lettering, Orthographic and Pictorial Views, Dimensioning and Tolerancing, and Drawing Revisions.
Dr. McCuistion is active in the following ASME/ANSI codes and standards committees: Y14 Main, Y14.2 Line Conventions and Lettering, Y14.3 Orthographic and Pictorial Views, Y14.5 Dimensioning and Tolerancing, Y14.5.1 Mathematical Definition of Dimensioning and Tolerancing Principles, Y14.5.2 Certification of Geometric Dimensioning and Tolerancing Professionals, Y14.8 Castings, Forgings, and Molded Parts, Y14.35 Revision of Engineering Drawings and Associated Documents, Y14.36 Surface Texture Symbols, Y14.43 Dimensioning and Tolerancing Principles for Gages and Fixtures, Y14.45 Measurement Data Reporting, and Y14/B89 Joint Advisory Committee (JAC1) on the Specification of Notation to Support Requirements for Size and Geometric Tolerances.
Dr. McCuistion also is the Chairman of the annual SkillsUSA National Technical Drafting competition. He creates the graphics problem and written exam and serves as a judge. Competitors from all 50 states compete in one of 102 different skills-based contests in Louisville each June.


Module 1: Introduction

  • Dimension types and applications
  • Definitions
  • GDT Professional Certification Exam
  • The role of dimensions

Module 2: Floating Fastener Condition

  • Position MMC
  • Tooling / Production
  • Inspection
    • CMM (coordinate measuring machine)
    • Functional gage
    • Manual inspection

Module 3: Zero Tolerancing

  • Position zero tolerance
  • Tooling / production
  • Inspection

Module 4: Fixed Fastener Condition

  • Position MMC
    • Pitch cylinder rule
    • To MMC (maximum material condition) or not to MMC
  • Tooling / production
  • Inspection
    • CMM
    • Functional gage
    • Open setup

Module 5: Fixed Fastener Condition

  • Non-functional datum feature
  • Functional secondary size datum feature
    • RFS
    • MMC
  • Shift
  • Tertiary size datum feature

Module 6: Composite & Two Single Segments

  • Introduction
  • Composite positional tolerancing
  • Two single segment feature control
    • Frames

Module 7: Paper Gaging

  • Part description
  • Location data
  • Paper gage
  • Calculating the tolerance
  • Additional information
  • Limitations

Module 8: Non-Cylindrical Tolerance Zones

  • Position zones
    • Conical
    • Bidirectional
    • Elongated
  • Composite profile zones

Module 9: Dimensional Management

  • Current quality efforts
  • Dimensional management rational
  • Dimensional management phases
    • Set objectives
    • Develop dimensioning strategy
    • Apply dimensions
    • Analyze dimensions
    • Verify dimensions
  • Resolving problems
  • The dimensional analyst
  • The educational dilemma

Module 10: Dimensional Analysis Part 1

  • Variation
  • Analysis methods
  • Computer modeling
  • Analysis stages

Module 10: Dimensional Analysis Part 2

  • Identify the problem
  • Choose the answer
  • Identify the path
  • Perform the math

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