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Geometric Dimensioning & Tolerancing Fundamentals

Geometric Dimensioning & Tolerancing

Event Start Date:

March 4, 2025

Event Start Time:

8:30 AM

Event Location:

Manufacturers Resource Center

Geometric Dimensioning & Tolerancing Fundamentals (GD&T) is a two-day workshop where participants will learn to identify, interpret, and apply the 14 geometric characteristic symbols, as well as how they relate to datums.

The purpose of this workshop is to familiarize participants with the rules and symbols of GD&T. This powerful language improves communication on mechanical drawings and has many advantages over traditional plus/minus tolerancing. The proper interpretation of GD&T callouts will be covered, and how they impact manufacturing. The material is based on the ASME Y14.5-2018 Standard.


  • Identify and explain each of the 14 GD&T symbols
  • Describe how Rule #1 controls the form of a feature
  • Interpret the feature control frame
  • Apply and interpret the MMC and LMC modifiers
  • Identify datums and explain their role in GD&T
  • Identify key changes in the 2018 standard
  • Determine proper manufacturing and gauging techniques based on the GD&T

Who Should Attend

This course is intended for CAD designers, product engineers, manufacturing engineers, Manufacturing & Quality personnel, and especially those who have limited or no experience with GD&T.


Contact Nicole Pierce at (484) 655-4873 or nicole.pierce@mrcpa.org.


John-Paul Belanger | Certified Sr. GD&T Professional | Geometric Learning Systems

John-Paul Belanger is certified by the American Society of Mechanical Engineers as a Senior GD&T Professional. He has conducted numerous GD&T and Tolerance Stacks classes for a variety of manufacturing clients throughout North America and Europe. For four years Mr. Belanger was the primary GD&T instructor for a major automotive OEM. He has also done extensive consulting with clients in the proper application of geometric tolerancing. He holds a degree in aerospace engineering from the University of Michigan specializing in aircraft design and safety

Enter Registration Information:

Ticket Type: Ticket Qty: Per Ticket Price:
Early Registration

by 2/4/2025 after $850.00

Registration $850.00
Quantity: Total

Note: All registration fees must be received in advance of the date of your event. MRC must be notified two weeks in advance of this event if you need to cancel, otherwise we can only grant a credit to another MRC event. Remember, you can also send a substitute.

Event Details

  • March 4, 2025 8:30 AM   -   4:00 PM
  • March 5, 2025 8:30 AM   -   4:00 PM
  • Manufacturers Resource Center
  • 7200A Windsor Drive
  • Allentown
  • PA
  • 18106
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Meals and materials included
* Fees, time, and location subject to change.
** Not applicable for virtual events

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