Goal

Lessons

Introduction

Geometric Dimensioning and Tolerances

Objectives

  • Explain the need for geometric dimensioning, and tolerances (GD&T)

Basic Concepts of GD&T

Objectives

  • Explain the basic concepts of GD&T such as datum, baseline dimensions, and feature control frame along with the advantages of using GD&T.

GD&T Terms, Symbols and Rules

Objectives

  • Differentiate between the two main tolerance zone size modifiers: maximum material condition (MMC) and least material condition (LMC)
  • Infer from a technical drawing the physical characteristics described for a part or assembly
  • Identify and differentiate the symbols used in GD&T
  • Construct a technical drawing of a simple part using GD&T
  • Explain and apply the two main GD&T rules

Summary

Assessment