training & development
EL505 - Introduction to Geometric Dimensioning & Tolerancing (GD&T) – Y14.5

EL505 - Introduction to Geometric Dimensioning & Tolerancing (GD&T) – Y14.5

Date & Location   Member Price List Price Qty

Mar 12, 2018 - Apr 23, 2018


Apr 30, 2018 - Jun 11, 2018




Length: 43 days    CEUs: 2.30    PDHs: 23.00

Designed for those who use the ASME Y14.5 Dimensioning and Tolerancing standard, this course covers most of the geometric dimensioning controls used on mechanical engineering drawings.  Theoretical and practical concepts of each of the geometric controls are explained relative to design, tooling, production, and inspection.  Parts of a directional-change gear box are used as platforms for the geometric controls, including shafts, gears, bearings, keys, lip seals, castings, and threaded fasteners. 

This is an online, instructor-supported course, allowing you to work at your own pace and convenience. Composed of twelve modules with quizzes, most modules have drawing assignments and supplementary information.

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

You Will Learn To
 - Identify Symbols and feature control frame
 - Explain the terms, rules & measurement devices
 - Describe the characteristics of straightness, flatness, circularity & cylindricity
 - Explain how to work with datums, parallelism, perpendicularity & angularity
 - Explain runout, profile and position tolerance

Please click HERE to view the course outline.

Who Should Attend
Beginning designers, drafters, quality, procurement, tooling, production, manufacturing and shop personnel; designers, and others involved with tooling, production, inspection, routing in the shop; those involved with purchasing, costing and management; vendors and suppliers.

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

  • Course Type: Online Instructor-Led Course
  • Course Number: EL505
  • Language: English
Final invoices will include applicable sales and use tax.


Patrick J. McCuistion, Ph.D., GDTPS, created all the figures for the Y14.43 standard. He was an Associate Professor in the Engineering Technology and Management Department at Ohio University for 25 years. He taught 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. Dr. McCuistion worked for eight years in various engineering design, drafting, and design and drafting checking positions. He has provided instruction in geometric dimensioning, dimensional analysis, and dimensional metrology to industry, military, and educational institutions since 1986. He has authored one book on geometric dimensioning, three ASME Instructor-supported online courses on Drawing Interpretation, Basic Geometric Dimensioning and Advanced Geometric Dimensioning, and two ASME self-study 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, Y14.5.2 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, and Y14/B89 Joint Committee on the Specification of Notation to Support Requirements for Size and Geometric Tolerances.
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