Introduction to ASME Y 14.5-1994

Geometric Dimensioning and Tolerancing (GD&T) Concepts

This one-day workshop is intended as an introduction to the concepts of GD&T for a wide audience of people with little or no prior exposure to GD&T. The focus of this training is to introduce important basic concepts at a pace the attendees are comfortable with. Training content is reinforced with team-based activities applying these concepts.
Topics covered include:

  • Drawing
  • What is GD&T?
  • Feature of Size (FOS)
  • Modifiers, Symbols
  • Rule #1 & #2
  • Concepts
  • Datums (Planar)
  • Datums (FOS – Axis and Centerplane)
  • Tolerance of Position (TOP)
  • Runout
  • Concentricity


To ensure we can properly run this course, please register at least a week before the start of class. If you would like more information or to register after that, please contact us at 607-936-5501 or ilearn@corning-cc.edu to check class availability.

Register here!