Introduction to GD&T

I created some course material for a pilot group at MUN called GD&T club. 

You may be asking yourself, what is GD&T, and why should I care? Chapter 1 answers these questions. But I personally learned it so that I can build a career in manufacturing/mechanical design engineering.

The goal is to understand the impact of GD&T within a manufacturing setting. This means that these videos contain a touch of DFMA (Design for Manufacturing and Assembly) and Lean subjects. 

These videos are still in progress and will be uploaded as more are created.

Table of Contents:

Why GD&T Matters (Chapter 1)

This chapter aims to introduce, from the very start: 

• What is GD&T

• Why is it so useful

• Why you should learn it

• The history of GD&T

• A great example of GD&T in action.

The goal of this chapter is to motivate the viewer on why they should learn GD&T, but not yet explain exactly how it works.

A PDF version of chapter 1's materials can be found here.

Principles of Technical Drawings for Manufacturing (Chapter 2)

This chapter covers the prerequisite information required to understand and get the most out of learning GD&T. This includes:

• Formatting on Drawings

• Purposes of Tolerances

• Tolerance Stack-Up

• Systems of Limits and Fits

• Surface Finish

Principles of Geometric Tolerancing (Chapter 3)

This video covers GD&T Basics such:

• Features of Size (Regular)

• Datums

• Datum Reference Frames

• Rule 1 (Envelope Principle) 

• Rule 2 (Regardless of Feature Size)

Basic Dimensions, Position, and Profile (Chapter 4)

This video covers:

• Basic Dimensions

• The Position Characteristic

• The Profile Characteristics