Online Fundamentals of GD&T ASME Y14.5 1994

(12 customer reviews)


Click on above video for a FREE DEMO of the online course. Purchased video can be viewed as full screen.


Convenient web-based GD&T training at your desk or laptop. Freedom to take the course at your own pace; it’s available 24/7! Wherever you have internet access for a one-year period after your first log in. Pricing is per person and individually licensed.

  • See our president, Mark Foster, GD&T expert for over 25 years, teaching you as if you were at an AGI 3-day public class
  • No travel expenses required
  • 15 chapters with quizzes after each chapter so you can track your understanding. (approximately 24 hours of training)
  • Review any portion of the class as many times as you like during your access period.
  • Instructors will be available via e-mail or phone for any questions.
  • This program is intended and packaged for individual users. One user per licensed agreement sold. Access is granted to each purchaser separately with a private user name and password. This product is not to be shared or distributed to anyone other than the licensee.
  • A Certificate of Completion is presented upon passing (>80% on each quiz) all 15 quizzes.

For a free Trial license: Click Here; add the free trial to your cart and proceed to checkout. Once you complete the checkout, you should receive an email with a link to start your 30 day free trial.

You can also see the outline for the full course.

SKU: OnlFund94 Categories: ,


Course Description

This course is an introduction to the ASME Y14.5M-1994 standard. A one-year access user name and password is given to an individual at the time of your first log in through our website The course is divided into 15 chapters with quizzes after each. The student may access the course anytime during the access period via the internet.


  1. Introduce the concepts and some of the language of the Y14.5M standard.
  2. Enable participants to understand each of the Y14.5M standard’s symbols.
  3. Bring participants to a fundamental understanding of Datum Reference Frames.
  4. Understand the definitions and the effects of Material Condition Modifiers.
  5. Begin to prepare the participants for the ASME GDTP certification exams.


Your drawings have GD&T on them (or maybe they are supposed to)! If you have been attempting to work with GD&T, and you lack the confidence to specify or are having trouble interpreting the specifications, this course is for you. Using GD&T improperly can be worse than not using it at all! This program is a complete introduction to the Y14.5M-1994 standard. In this program we will focus on the “what, when, why and how” of GD&T. The main goal is to bring all participants to a common, basic and operational level of understanding. The course is a thorough introduction to those with a little to a moderate level of experience with GD&T, but you will not be an expert. Complete GD&T training requires more than just a few days

Program Outline

The program begins with a bit of the history of GD&T, then we look at the cost of designing and manufacturing a part. We will compare the “old” methods of dimensioning and Tolerancing to the Y14.5M approach. In this analysis, we will demonstrate the strengths and advantages of GD&T as a design tool, as a manufacturing aid, as a purchasing (estimator) aid, and as an overall communications facilitating tool. We incorporate many practical exercises to enhance learning, and to increase confidence. The subject matter covered is (as a minimum):

  • Introduction – Objectives, review of the “old” system versus GD&T
  • General rules of dimensioning and drafting per the standard.
  • Tolerance Zones – definition, concepts, comparison to existing systems.
  • GD&T symbology and definitions of controls – particular emphasis on position tolerancing
  • “Bonus” Tolerance – definition and how to take advantage of them
  • Datum Reference Frames – definition and proper construction and selection

Who Should Attend

This program is designed for anyone who designs, drafts, engineers, purchases, manufactures, estimates, or inspects parts and assemblies. Particular emphasis is placed on those who design and manufacture, and those responsible for quality.


A working understanding of technical drawings (perspectives, sections, details, etc.). GD&T Overview and Print Reading suggested.

Continuing Service

Our instructors are available for questions anytime by e-mail or during business hours by phone.  You may contact us at and your questions will be forwarded to an available instructor.

12 reviews for Online Fundamentals of GD&T ASME Y14.5 1994

  1. Livyn Okorocha

    Senior Designer, My special thanks to Mark Foster for reducing this dry topic called GD&T to a level of understanding that even our co-ops could comprehend. For me it was a refresher course, but even then I understood and learned more than I did the first time around. The visual aids were simple, to the point and very helpful. I look forward to the next level of GD&T when provided us.

  2. Matt Young

    Manufacturing Engineering Technician, Outstanding class!! The individual giving the class was very knowledgeable and took time talking about everything. I would recommend this to anyone wanting to learn more about GD&T. Great Job!!!!

  3. Adam Smith

    Manufacturing Engineering Technician, I really enjoyed the class. It has a plethera of information and has taught me a great deal. Thanks to Mark and Norm for coming and spending some time with us.

  4. Rick Smith

    Engineering Co-op, I learned a great deal of information about GD&T. This was a great introducory into GD&T. For a co-op with hardly any experience with tolerencing it worked well.

  5. Don Schoone

    primary designer, This in my fourth beginning GD&T class. My first was with Lowell Foster in 1983 The content was excellent. Thank you Don Schoone

  6. Reed Houge

    Engineer, “GD&T is a tough course to teach with a live crowd but even tougher with online. Mr Foster does a great job keeping the student involved and interested.

    Outstanding Job.”

  7. Kelly Forbes

    “I found the online course informative. Mark Foster is easy to listen to. It was almost like being in class. The training was taught on a level that allowed me to stay focused and engaged in the video. I would recommend this to everyone that has a desire to learn the basics of GD & T.

    Kelly Forbes”

  8. Justin Hunt

    CAD Designer, This course wash very easy to follow and explained the language of GD&T in a real world applicable method. I thought Mark new his material very well and more importantly knew how to teach from the ground up!

  9. Shawn Guillory

    Will Develop a Strong Foundation in Great Practical Detail, After reading countless materials on GD&T, I finally stumbled upon Mark’s course and am grateful for that as I have now truly learned a strong foundation in GD&T. Mark makes it intersting, explains the benefits of GD&T so one can see the value of learning and implementing it, and creates a roadmap of the Big Picture of GD&T so one can have a feel for what it is first. Then he fills in the details in the right order presenting the concepts and building on previous concepts in the right order so that this information is converted into long-term memory. If you take this course, you will leave the course feeling like it is a great value for your dollar and for your career progression. He definitely overdelivers thus exceeding customer satisfaction and I would recommend this training over all others with a passion as I know first hand the benefits of taking this course.

  10. Unknown

    Quality Control Supervisor, Course was very helpful in the development of blueprint reading. Only suggestion would be more actual blueprint reading or interpretation in relation to GDT. Overall, it was a great class and I would recommend it to anybody needing a basic course. Thank you!

  11. Jim Kolbe

    Project Engineer, “This is the first on-line course that I have taken. It went much better than I anticipated. I thought the course was presented well and easy to understand. I would recommend this course to anyone desiring to learn about the fundamentals of GD&T.

    Thank You”

  12. Mechanical Design Engineer

    Excellent course for engineers, Mark does an excellent job of de-tangling previous misconceptions of GD&T. He re-assembles the theory into structured and comprehensive lessons. His background as a Mechanical Engineer helps drive home real world applications of GD&T. Thanks Mark!

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