VCPD570 - Geometric Dimensioning and Tolerancing Fundamentals (Virtual Classroom) has been added to your cart.

Geometric Dimensioning and Tolerancing Fundamentals (Virtual Classroom)

Read and create engineering drawings and interpret design intent per ASME Y14.5 - Geometric Dimensioning and Tolerancing (GD&T).

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

Geometric Dimensioning and Tolerancing Fundamentals (Virtual Classroom)
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  • Jul 18-19th, 2022


  • Aug 22-23rd, 2022


  • Sep 19-20th, 2022


  • Oct 17-18th, 2022


  • Nov 07-08th, 2022


  • Dec 12-13th, 2022



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Enroll now to save 57%

$1,830 $795

Enroll into ASME Y14.5 Geometric Dimensioning and  Tolerancing (GD&T) Design and Applications Combo Course  and save $295.

Learn how to take the guesswork out of the manufacturing process, to improve quality and avoid costly mistakes.

Course Schedule:
This course runs from 9:30 AM to 1:30 PM and 2:00 PM to 6:00 PM Eastern each day, with breaks throughout.

Not only is ASME’s Y14.5 Standard considered the authoritative guideline for the design language of geometric dimensioning and tolerancing (GD&T); it is essential in ensuring that drawing information and symbols are being interpreted and communicated properly. Establishing uniform practices for stating and interpreting GD&T on engineering drawing and related documents is a critical component of the manufacturing of a part. These good design best practices are directly related to a product’s innovation, beauty and success.

This official ASME course is based on the latest ASME Y14.5-2018 Standard and makes the GD&T concepts easy to learn and apply.  By combining lecture with animated graphics and display models, this course aims to ensure that all students are engaged throughout. 

By participating in this course, you will learn how to successfully:

  • Demonstrate a thorough understanding of the fundamental geometric concepts
  • Interpret and explain the application of geometric symbols on drawings 
  • Explain how to select the datum reference frames properly
  • Calculate the position and profile tolerances

Who Should Attend
The Designer, the approver/decision maker, and anyone who needs to read and/or interpret engineering drawings and their intent. Engineering, designing, drafting, quality control, procurement, tolling, production, purchasing, manufacturing, CAD inspection, and shop personnel. 

Course Materials (included in purchase of course)

  • A copy of the 400-page GeoTol Pro 2020 Book and Pocket Guide, by Scott Neumann and Al Neumann, which contains full color graphics and loaded with student exercises. The training materials will serve as a valuable resource long after the training is complete. (Please note that the books are shipped and we cannot guarantee that they will arrive in time for the start of class for late registrants).

Topics covered in this course include: 

  • Introduction to Geometric Dimensioning and Tolerancing
  • Limits of Size, Rule #1
  • How the Geometric Tolerancing System works (Profile and Position Tolerance)
  • The Datum Reference Frame
  • Product Plans and Position Tolerance Verification
  • Orientation Tolerances (Parallelism, Perpendicularity, Angularity)
  • Case Study Examples
  • This ASME Virtual Classroom course is held live with an instructor on our online learning platform.  Certificate of completion will be issued to registrants who successfully attend and complete the course.

This ASME Virtual Classroom course is held live with an instructor on our online learning platform.  Certificate of completion will be issued to registrants who successfully attend and complete the course. 

Buying for a team? Get ASME Corporate Training.

Set up a customized session of this course for your workforce. Contact to learn more about group rates.


Topics Covered

Introduction to Geometric Dimensioning and Tolerancing

  • General overview
  • Geometric characteristic symbols
  • Rules, terms and definitions
  • Introduction to measurement principles, open set-up and CMM (coordinate measuring machine)

Limits of Size

  • Rule #1, size controls form
  • Features with & without size
  • Problems with plus/minus tolerancing

How the Geometric System Works:

  • Introduction to the datum reference frame
  • Basic dimensions
  • Introduction to position tolerancing
  • MMC, LMC, RFS material condition modifiers
  • Introduction to profile tolerancing

 The Datum Reference Frame:

  • Datums, datum features, true geometric counterparts
  • Holes, slots, shafts, widths as datum features
  • Connection between the theory and physical
  • Constraining the 6 degrees of freedom
  • Creating a complete datum reference frame

 Product Plans

  • Product definition drawing, manufacturing process plan, dimensional measurement plan
  • Position tolerancing and verification
  • Inspection and reporting of position tolerance RFS and at MMC
  • Paper gage

Orientation Tolerances

  • Parallelism tolerance
  • Perpendicularity tolerance
  • Angularity tolerance
  • The hierarchy of tolerances: location, orientation, form

Practical Application of GD&T (Case study examples)

  • Applying GD&T to blank drawings
  • Selecting a datum reference frame and calculating tolerances

Scott Neumann is President of GeoTol, Inc. He specializes in geometric tolerancing product definition, tolerance stack-up analysis, measurement data and inspection techniques. Scott has presented hundreds of geometric tolerancing training programs to engineering, manufacturing, and quality personnel at major corporations in the US and worldwide since 2007. Scott has also practiced consulting and mentoring to improve product documentation and inspection methods on a variety of products. The industries include aerospace, defense, automotive, medical, industrial, and consumer products. He has coauthored three textbooks and video programs on the subject: GeoTol Pro 2020 to the Y14.5-2018, GeoTol Pro to Y14.5-2009, and GeoTol Applications and Tolerance Stacks. Scott is 2009 Senior Level GDTP certified to ASME Y14.5.2 and is an active member of the following committees related to GD&T: 

  • ASME Y14.5 Dimensioning and Tolerancing Support Group member 
  • ASME Y14.5.1 Mathematical Definitions of Dimensioning and Tolerancing 
  • ASME Y14.5.2 Certification of Dimensioning and Tolerancing 
  • ASME Y14.45 Measurement Data Reporting 
  • AED Assembly Level Tolerancing 
  • Y14 US TAG Support Group in the ISO-GPS and ISO-TPD committees 

 Scott graduated from The University of Florida with a bachelor's degree in Mechanical Engineering. 

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 an ADDA Mechanical Drafter.
Dr. McCuistion has authored one book on geometric dimensioning, teaching courses on the following subjects: Drawing Interpretation, Basic Geometric Dimensioning and Advanced Geometric Dimensioning, and authored two, ASME self-study 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.
As Chair of the national SkillsUSA Technical Drafting competition, Dr. McCuistion creates the yearly design and drafting problem with solutions and a written test and coordinates all competition details.  The problem to be solved includes drawing and assembling 3D computer models of a product and creating dimensioned 2D views of those models based on national drawing standards.

Edward McCarthy has 48 years of industry experience in product definition and technical data package.  In 2017, he started providing services to industry in consulting, monitoring, and formal training for product definition and design intent.

Ed started his career within the U.S. Air Force Communication Command within an Engineering Squadron in the development of military engineering programs.  Ed has a broad range of industries experiences in product design for the Dept. of Defense (DoD) projects, aerospace, expandable space-stations, electron beam accelerators, product handling equipment, high speed winders, semiconductor robotics, laser imaging systems, linear accelerator systems, medical, weapons and missile systems.

Ed specialized as an internal subject matter expert and taught formal classes within the above industries dealing with dimensioning and tolerancing for product definition, tolerance analysis, measurement reporting and inspection.  Ed has trained thousands of professionals in Print Reading, Geometric Dimensioning and Tolerancing (GD&T), Geometric Tolerancing Applications, and Tolerance Analysis.  He has developed specialized training material in dimensioning and tolerancing within the different companies at which he was employed at.

Ed is Senior Level GDTP certified to ASME Y14.5.2 and is an active member of the following committees related to GD&T:

  • ASME Y14 Main Committee Member – Engineering Product Definition and Related Documentation Practices 
  • ASME Y14.5 Co-Vice Chair – Dimensioning and Tolerancing 
  • ASME Y14.8 Committee Member – Castings, Forgings, and Molded Parts
  • ASME Y14.39 Committee Member – Limits and Fits 
  • ASME Y14.43 Committee Member – Dimensioning and Tolerancing Principles for Gages and Fixtures
  • ASME Y14.45 Committee Member – Measurement Data Reporting 

John I. Miles is a Senior Instructor, coach, and mentor.  He has over 35 years’ experience as a Senior Tool Designer and Dimensional Management SME, which includes 12 years as a quality tool designer and 16 years as a GD&T (Geometric Dimensioning and Tolerancing) specialist and trainer.  John retired from Lockheed Martin Aeronautics Co. in Fort Worth, TX in 2014, after 28+ years.  He was the Lockheed Martin Corporate subject matter expert for dimensional management – GD&T and was the chair of the Corporate Community of Practice (CoP). John has taught over 5,400 individuals in various levels of GD&T throughout the corporation and with their many machine parts suppliers both domestic and international.  John was instrumental in the transition from fully dimensioned 2D drawing practices to a model-based definition (MBD – reduced dimensioned drawing) concept for the F-35 program as well as others throughout the corporation.

John has a down to earth presentation style of instruction and adds humor and fun to the learning experience which produces high ratings from those attending his GD&T and Engineering Drawing Standards Seminars. John stresses that no question is too small and that even the simplest question answered incorrectly can be costly to their company.

John also brings extensive experience as a GD&T mentor, working on-site, side-by-side, helping our customers apply GD&T principles to day-to-day real-world applications. His expertise and skills were developed while employed at: Lockheed Martin Aeronautics Co in Fort Worth, TX, Lockheed Martin Missiles & Fire Control in Orlando, FL, and at Texas Instruments in Dallas, TX.

John is an ASME Senior Level GD&T Professional S-0650. John has been attending various ASME standards committee meetings since 1988 and he is an officer and/or member of the following:

  • Vice Chairman: ASME Y14 Main Committee
  • Chairman: ASME Y14 EAPT (Executive Advisory Project Team)
  • Chairman: ASME Y14.41 – Digital Product Definition Data Practice
  • Support Member: ASME Y14.5 – Dimensioning and Tolerancing
  • Member: ASME Y14.2 – Line Conventions and Lettering
  • Member: ASME Y14.3 – Multiview and Section
  • Member: ASME Y14.37 – Composite Part Drawings
  • Member: ASME Y14.43 – Dimensioning and Tolerancing for Functional Gaging
  • Member: ASME Y14.100 – Engineering Drawing Practices
  • Member: US TAG to ISO/TC 10
  • Chairman: ISO/TC 10/WG 16 (ISO 16792 – Digital Product Definition Data Practices) (International version of ASME Y14.41)

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