Geometric Dimensioning & Tolerancing Public

SAE Workforce Readiness

The holder of this badge has completed all requirements for SAE's Fundamentals of Geometric D & T Course. (Equivalency - 1.6 CEUs)

Required Evidence

Link to your project

Please provide relevant link(s) to your project or project sections that demonstrate your geometric dimensioning and tolerancing abilities. More Info

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This badge qualifies as an IACET Accredited Badge. The individual IACET Accreditation Number for SAE, International is: 1003713-2. IACET's accreditation of SAE can be verified here:

https://www.iacet.org/resources/accredited-providers-list/accredited-provider-overview/?providerID=108726

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Fundamentals of Geometric Dimensioning &Tolerancing (GD&T)


Geometric dimensioning and tolerancing (GD&T) is used as a symbolic way of showing specific
tolerances on drawings. GD&T is a valuable tool that effectively communicates the design intent
to manufacturing and inspection. It is governed by the technical standard ASME Y14.5M-1994,
which was updated in 2009. This course introduces participants to the GD&T system, providing
a working knowledge of the correct interpretation and application of each symbol, general rules,
the datum system, and & ‘bonus’ tolerance and highlighting some of the changes in the updated
Y14.5 standard. The material is reinforced with many practice exercises.

Learning Objectives


By participating in this course, you will be able to:
  • Explain the benefits of geometric tolerancing
  • Identify datum features and determine their order of precedence
  • Identify and interpret each of the characteristic symbols
  • Describe the material condition modifiers and how ‘bonus’ tolerance occurs
  • Correctly interpret GD&T feature control frames, and explain the impact on manufacturing and inspection 
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Jay Meck

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