The SmartGD&T™ Refresher

(Available for ASME Y14.5 and ISO 1101)


Upon completion of the course, students will be able to:

  1. Name the engineering objectives and financial contributions of GD&T.
  2. Name the shortcomings of "CD&T" (Classical Dimensioning & Tolerancing).
  3. Name the fundamental components of the perfect imaginary world of GD&T (Tolerance Zones, Tolerance Values, Datums, Datum Reference Frames, and Basic Dimensions)
  4. Name the components of the imperfect real world of physical parts.
  5. Name and begin to use the most important Geometry Control Tools (Size, Flatness, Parallelism, Perpendicularity, Position, and Surface Profile)
  6. Recognize the fifteen fundamental rules of GD&T and appreciate their use.
  7. "Encode" rather than "decorate" drawings with GD&T when designing, and "decode" rather than "interpret" GD&T in manufacturing and inspection.

This course is delivered in two days, providing adequate time for hands-on practice of early encoding and decoding processes.

Target Audience:
All persons dealing with Product Design, Drafting, Tool Design and Maintenance, Machining, Manufacturing Management, Manufacturing Process Control, Inspection, Robotic and manual Assembly, Vendor Relations and Purchasing.


Course handouts include a dedicated course manual and sundry articles and flyers. Participants are encouraged to provide their own lined pads and pencils (making it easy to erase occasional mistakes), and examples of drawings (with overhead slides) and parts they wish to discuss.


In the case of in-house corporate classes, a non-disclosure agreement should be implemented between the sponsor and Multi Metrics, Inc. prior to inception. Drawings and parts brought to public classes should be non-proprietary in nature.

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