GD&T Training

GD&T Training Courses

We offer a full-line of comprehensive GD&T training and tolerance analysis training courses, based on many years of industrial experience, standards development, and implementation services. Our GD&T training and tolerance analysis training materials are unmatched, technically robust, and easy-to-understand – our students like our training and learn what is needed for successful implementation. We respect our clients and offer the most technically relevant training in terms that are useful and make sense. We build long-term relationships with our clients, as our focus is your long-term success. Our books and materials are available on our website, and many of the books are sold by other sources as well, such as Amazon, ASME Press, IHS Global, and many other retail sources.

We teach our GD&T courses from a multi-disciplinary point of view. We teach GD&T so every team member:

  • Understands what the GD&T means
  • Understands how the GD&T works
  • Understands the effect of the GD&T on product function, manufacturing, inspection, and assembly
  • Understands the effects of the GD&T throughout the product lifecycle

We ensure that your design, manufacturing, inspection, assembly, quality, and service personnel and your suppliers understand GD&T as needed to be successful and produce the highest quality, lowest cost products possible.


GD&T in Industry – GD&T Implementation – GD&T in the Supply Chain

We teach dimensional management strategies in all of our courses. We present GD&T from a business point of view and we present GD&T from a legal point of view. In a sense, all of our courses are business courses – we teach GD&T, tolerance analysis, 3D-MBD, and 3D-MBE in a business context. GD&T does not exist on a technical island – it is used and exists in the workplace. We make sure your staff gets this critical point, and we lead them to understand how they can optimize their use of GD&T for the goals of the business. We explain specifications from both a technical point of view and a legal point of view, as engineering drawings and annotated models form part of a contract. Specifications are legally-binding and it is critical that your staff and suppliers understand the implications. There are many constraints in product development and product definition, and it is critical that everyone in the supply chain understands why certain specifications are needed, why they are beneficial, and the pros, cons, and tradeoffs of alternate approaches. It is also critical that your design organization understands the implications of the specifications they create on the rest of supply chain. Any misunderstandings or missteps in any of these areas can be very costly. Our goal is to make sure your staff works toward a common goal as a coherent team. Our goal is your success.

GD&T Training Courses and Seminars

In our GD&T courses and GD&T seminars we teach the concepts, rules and language of GD&T, and as discussed above, we teach the business implications of GD&T. Our GD&T training presents GD&T from a functional viewpoint, discussing the topics from the point-of-view of application to real world problems.

When we teach GD&T, we teach it from the point-of-view of application to real world problems, not just another textbook approach. GD&T is taught with Tolerance Stackups in mind – we want our clients to understand the implications of the tolerances they specify, including the type of tolerance, material condition modifiers, datum references, and the tolerance values as well. We also discuss the implications on assembly methods, manufacturing and inspection. Although GD&T is a science of the details, it must also be understood in the context of the big picture.

We offer Beginning, Intermediate, Advanced and Custom GD&T courses and GD&T seminars. We call these GD&T training courses Level 1 GD&T Fundamentals, Level 2 GD&T Applications, and Level 3 Advanced GD&T courses. We also offer Functional Dimensioning and Tolerancing courses and GD&T Certification Preparation seminars. Our GD&T training can be generic or our GD&T training can be adapted to your specific needs.

Our Level 1 Fundamentals of GD&T course presents the details and show how the details fit into the full system of GD&T, from the details to the big picture. Level 1 GD&T explains the meaning of the symbols and specifications and how to properly specify the needed tolerances. Level 1 GD&T explains the exact meaning of all the Geometric Tolerances, Definitions, the Fundamental Rules, Feature Control Frames and Datum Reference Frames. Functional Dimensioning and Tolerancing concepts are introduced and woven through the curriculum. This course explains the system of GD&T, how all of the components work together to form a complete, coherent system. We explain how to implement GD&T in the workplace, and how to understand the many tradeoffs between competing interests within the supply chain.

Level 2 GD&T Appliacations and Level 3 Advanced GD&T courses are taught with the requirements of the final product in mind, which includes extensive applications, alternate strategies, and the effect of the GD&T on Tolerance Stackups. Dimensional Management concepts are addressed throughout these courses as well. We want our clients to understand the implications of the tolerances they specify, including the functional implications and the cost implications of the assembly, manufacturing and inspection processes. The many nuances of GD&T and the importance of syntax and context are discussed in detail. Functional Dimensioning and Tolerancing concepts are further developed and explained throughout the course. In our Level 2 GD&T and Level 3 GD&T courses, your staff will work through real world examples and solve problems that will help them do a better job in the workplace and form more coherent teams. Teamwork is essential in any dimensional management implementation, and our GD&T training will help you develop more effective teams that solve your dimensional management problems optimally.

If desired, our GD&T courses may be customized around your products and problems. Custom courses can be anything you want. Our training has been successful in a variety of environments and contexts.


Onsite GD&T Training Courses

Most of our customers prefer for us to come to their facility and teach in-house courses. This allows us to talk about their parts, products, and processes in a more private setting. We help many companies every year – why not let us help you achieve your Dimensional Management goals?  We offer ASME Y14.5-based GD&T Training Courses and ISO 1101-based GD&T Training Courses. Course content can be suited to your needs and practices. Our onsite courses include time to review your designs, drawings, products, and processes.

GD&T, Dimensional Management, and the Big Picture

Although GD&T is a science of the details, it must also be understood in the context of the big picture. If our clients are interested, we also explore the implications of their Dimensioning and Tolerancing Schemes on the rest of their company, helping our students to understand the tradeoffs in cost and quality they make when selecting various Tolerancing Schemes.

We offer the finest in GD&T training and offer an unparalleled journey through the language of Geometric Dimensioning and Tolerancing. Our explanations and materials are presented in a mathematically precise manner while keeping the material easy to understand and assimilate. We teach GD&T at many companies, from very small to the largest multi-national corporations. And, we are invited back to teach more courses when staff grows or if more advanced training is desired.

Experts in ASME GD&T, ISO GPS, and ISO GD&T

Our trainers are experts in ISO GPS / ISO GD&T standards and ASME GD&T standards, as we participate in the development of ISO GPS and ISO STEP standards, and we participate in the development of ASME Y14.5 and other ASME Y14-series standards. We teach ISO GD&T courses and we teach ASME GD&T courses. While the two GD&T systems look quite similar, there are important differences between the ISO GD&T system and ASME GD&T system. We can help your development team and supply chain if you use the ISO GD&T system or the ASME GD&T system, or even if your development team and supply chain are international and use both systems (ISO GD&T and ASME GD&T) in different parts of the enterprise. We provide services internationally, and we regularly work with multinational corporations in the U.S. and around the world.

GD&T Books and GD&T Reference Materials

Our most recent GD&T book, The “GD&T Update Guide” is the preeminent book on the ASME Y14.5-2009 standard. The “GD&T Update Guide” covers all of the new symbols, techniques, tools, and content in the ASME Y14.5-2009 standard. The “GD&T Update Guide” also carefully explains the changes made to ASME Y14.5-2009 in great detail and offers advice where topics are not fully defined or potential confusion may exist in the ASME Y14.5-2009 standard.

From the author’s notes:

“The “GD&T Update Guide: ASME Y14.5-2009” discusses the principal changes and improvements in the ASME Y14.5-2009 standard. Changes in the structure, philosophy, expansion of scope, and the overall intent of the new revision are discussed. New terms, definitions, symbols, rules, feature types, tools, techniques, approaches, and changes made to each section of the standard are also discussed. The “GD&T Update Guide: ASME Y14.5-2009” also includes a detailed paragraph-by-paragraph explanation of the principal changes in ASME Y14.5-2009.

The “GD&T Update Guide: ASME Y14.5-2009” is used as part of our training courses and is a perfect addition to our highly-regarded books “The Journeyman’s Guide to Geometric Dimensioning and Tolerancing” and the “GD&T Visual Glossary.”

The GD&T Update Guide is a must-have reference for anyone who needs to understand GD&T and the ASME Y14.5-2009 standard.”

We suggest you consider our GD&T and tolerance analysis training courses to help you understand your variation, how to quantify it, how to mitigate its effects in your products, and how to implement dimensional management throughout your enterprise.


GD&T Services – GD&T Consulting

Our GD&T Consulting Services are popular as a stand-alone service and as a follow-up to our GD&T Training Courses. Our GD&T Consulting Services can be applied to a solve variety of problems, from understanding the GD&T specifications on existing drawings, improving the GD&T specifications and Dimensioning and Tolerancing schemes on existing drawings, to developing GD&T schemes for new drawings.

Ask us about our GD&T Consulting Services: We can help you apply GD&T to your drawings, help you understand the meaning of the specifications on drawings from your suppliers, vendors, customers and other engineering groups.

We can help you convince your clients, suppliers and customers to improve their Dimensioning and Tolerancing, making their parts easier to manufacture, inspect and assemble, and helping to ensure their parts and assemblies will function as intended. Our GD&T Consulting Services are our most commonly requested consulting service.

GD&T Services – Preliminary Legal Document Specification: GD&T Review and Dimensioning and Tolerancing Review

With our GD&T Review and Dimensioning and Tolerancing Review Services, we review your drawings and related specifications and offer preliminary guidance to help you prepare for litigation as it relates to arguments over the meaning or extent of drawing specifications. Often we develop a detailed report of our findings with our GD&T Review Services, which can be very helpful in avoiding conflict over GD&T and Dimensioning and Tolerancing misunderstandings.

GD&T Review and Dimensioning and Tolerancing Review Services can be very helpful in convincing a supplier that they are not meeting legally-mandated specifications, or in convincing a client that a specification that they feel is mandatory is in fact not required. Our goal is to help both parties understand the true meaning of their specifications and avoid costly litigation.

GD&T Services – Drawing Conversion

We can help you convert your existing drawings from being defined with plus and minus tolerancing to being completely defined using GD&T. This is one of our most popular GD&T Consulting Services.

GD&T Services – Mentoring

Let us work with your staff on a long-term basis, helping them to become truly proficient in their understanding and application of GD&T to your designs and drawings. This is an excellent follow-up to our training courses – it is absolutely the best way to ensure that the material learned in week-long or shorter training courses becomes integrated into your design processes.


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