• 1-888-TEC-EASE
  • Outside USA: 1-716-785-6015

Your Source for GD&T Training and Materials

Y14.5-2009 GD&T Standard Update Computer Based Training

Click Here to View Section 1

Cost: $295, includes book | Order Today!

Learn about changes made to each section of the new ASME Y14.5-2009 standard at your own pace in this 8-hour, web-based training course. We will send you a book via UPS and your username and password via email within 24 hours of your registration. You will have 30-days to complete the class from the time you register.


We will cover changes which:

  • Add new concepts and symbols to clarify the meaning of the drawing
  • Clarify concepts found in the 1994 revision
  • Extend principles found in the 1994 revision
  • Resolve differences or discrepancies found in the current standard
  • Incorporate concepts from other Y14 standards

The major revisions of the Standard are driven by the needs of industry. A drawing today is defined in the Y14.100 standard as "an engineering document or digital data file(s)". Designs and individual parts are more complex today. In addition, the need for higher quality and improved productivity demand that we get it right the first time. Because Tec-Ease, Inc. has been involved with this revision every step of the way, we can provide the reasons for these changes. The application of the new concepts will be shown on a variety of parts from castings and molded parts to sheet metal and other fabricated parts. As in the past, the graphics for this webinar will be in full color and 3-D to make understanding the revisions that much easier. We have also included many animations and exercises to test your understanding of the concepts.


Course Outline:

Section 1 - Scope, Definitions, and General Dimensioning

  • Clarify Boundaries
  • The Coordinate System - New Symbol
  • Degrees of Freedom
  • Datum Feature Simulator Definition
  • Actual Envelopes
  • Irregular Features of Size - New Concept
  • Major Revisions to Fundamental Rules
  • Rounded Ends and Slotted Holes
  • Readability
  • Spotface - New Symbol

Section 2 - General Tolerancing

  • Positional Tolerancing Method
  • Basic Dimensions
  • Principle of Independency - New Symbol
  • Continuous Feature - New Symbol

Section 3 - Symbology

  • New Symbology
  • Symbol Placement

Section 4 - Datum Reference Frames

  • Labeling the Coordinate System - New Symbol
  • Degrees of Freedom - New Symbols
  • Datum Feature Simulators
  • Degrees of Freedom Chart - Expansion of Datum Features
  • Virtual Condition - Clarified
  • Orienting Datum Planes - Clarified
  • Regardless of Material Boundary Application
  • Maximum Material Boundary Application
  • Datum Translation - New Symbol
  • Irregular Features of Size as Datum Features
  • Datum Feature Selection
  • Customized Datum Reference Frame - New Symbol
  • Mathematically Defined Surface
  • Clarifying Applicable Boundaries
  • Movable Datum Targets - New Symbol
  • Restraint Clarified
  • Multiple Datum Features
  • Simultaneous Requirements

Section 5 - Tolerances of Form

  • Application of Flatness RFS, MMC or LMC - New Use of Flatness

Section 6 - Tolerances of Orientation

  • One Orientation Symbol Instead of Three!

Section 7 - Tolerances of Location

  • Position, Concentricity and Symmetry
  • Profile of a Surface Control
  • LMC and LMB Applications to Position
  • Composite Position Tolerancing - Expanded
  • Position Tolerance with No Datum Reference

Section 8 - Tolerances of Profile

  • Profile Tolerances for Plane Surfaces
  • Offset Surfaces
  • Combined Controls
  • Unilateral and Unequally Disposed Profile - New Symbol
  • Profile Tolerances as General Requirements
  • All Over Specification/Symbol - New Symbol
  • Non-Uniform Zone - New Control
  • Non-Uniform Zone to Smooth the Transitions
  • Composite Profile Tolerancing - Expanded

Section 9 - Tolerances of Runout

  • No changes
Y14.5-2009 GD&T Standard Update Computer Based Training

To receive free GD&T Tips please provide your email address: