IIGDT World International Institute of
Geometric Dimensioning & Tolerancing		  
 
Level 2
Precision GD&T: Introduction & Fundamental Principles
Course Outline

Course Objective

To provide a critical and simplified foundation in fundamental lessons in proper interpretation of engineering drawings used in the design, manufacture and inspection of parts, which have geometric controls applied per ANSI Y14.5M-1982 and ASME Y14.5M-1994.
Course Length 2 Days
CEUs 1.6
What You Will Learn Introduction to Theory and Rules
 

  • Rule 1 on Feature Size

  • Rules 2 & 3 on Material Condition Principles Applied to Features

  • Pitch Diameter Rule

  • Comparison of Changes Between ANSI Y14.5M-1982 and ASME Y14.5M-1994

  • Implications of +/- Tolerancing

  • Conversion of Square Zone to Diametral
  Datums and Datum Features
 

  • Datum Precedence

  • Planar Datum Features

  • Datum Features of Size

  • Inclined Datums

  • Compound Datums

  • Datum Targets and Partial Datum Features

  • MMC, LMC and RFS Applied to Datum Features

  • Introduction to Multiple Hole Patterns Defined as a Single Datum
  14 Geometric Symbols
 

  • Analysis of Symbols and Definitions

  • Analysis of Tolerance Zones

  • Actual Mating Envelope

  • Supporting Symbology
  Feature Control Frames  
 

  • Single Segment Feature Control Frames

  • Composite Feature Control Frames

  • 2D Analysis of Single Segment and Composite Feature Control Frames

  • Virtual Condition Principles

  • Simultaneous Requirements

  • Beginning Levels of 3D Analysis
  Beginning Analysis of Measurement Applications
 

  • Negative Implications of Specific Measurement Procedures

  • Analysis of Data from Case Studies and Formula Calculations

  • Position Calculation Exercises and Review of General Guidelines
  Global Simplification of GD&T
 

  • GD&T Boundary Comparisons

  • Reduction of Symbology (14 symbols down to 3 symbols)

 

Overview of Progression to “Level 3—Precision GD&T: Advanced Applications & Analysis”

Who Should Attend

This fundamental course is for those who must read and interpret engineering drawings and who want to develop or to improve their understanding of the basics of measurement tools, geometric symbology and engineering drawing interpretation as applied per ASME Y14.5M-1994. Drafters, inspectors, designers, technicians, machine operators, toolmakers, technical managers and engineers will all greatly benefit.

Prerequisites

Blueprint Reading or equivalent knowledge.

The Introduction & Fundamental Principles Course Outline is available in PDF format.
Training Transformation Business Transformation GD&T Training Deployment Guide
Training Transformation Training Transformation GD&T Training Deployment Guide
To read about the Training Transformation, click here. To read about the Business Transformation, click here.  
Example Graphics from Course GD&T Boundary Comparisons Global Simplification of GD&T
  GD&T Boundary Comparisons Global Simplification of GD&T
 
  Feature Control Frame Datum Precedence
  Feature Control Frame Datum Precedence
 
  Incorrect Algorithms Implications of MMC, LMC & RFS
  Incorrect Algorithms Implications of MMC, LMC & RFS
 
  Note : ZoomClick on any image to zoom in.