GD&T Mastery - Learning Path 

A structured learning path from understanding GD&T symbols, to confidently applying GD&T in real engineering designs, The why and why not . 

Learning Pyramid of GD&T


GD&T Learning Guide

A holistic guide on how to go about learning GD&T and Tolerance Stacks backed by real world experience .

Looking to Dive into our in-depth courses ? 

GD&T Mastery Course Bundle

3 courses in one 

Course 1 : GD&T Basic Concepts

Topics Covered

  • The Need for GD&T 
  • Concepts of Features, Features of Size, Rule #1, Envelopes
  • Datums and Reference frames .  How are they created? How are they applied?
  • Symbols and their inspection methods, what they mean
  • What is Bonus tolerance , virtual condition 
  • Multiple Examples and exercises

Course 2 : GD&T Advanced Concepts and Applied

Topics Covered

  • Composite position control and comparison with multi segment control
  • 3-2-1 Principle and Datum Targets, irregular surfaces
  • Projected Tolerance zone
  • Fixed and Floating Fasteners Tolerancing
  • Simultaneous Requirements
  • Patterns and slots
  • GD&T Applied to components - Case studies

Course 3 : Basics of Tolerance Stackup Analysis 

Topics Covered

  • Basics of Fits system
  • How to do a simple Tolerance stackup analysis
  • What is statistical tolerancing
  • How to incorporate GD&T into Tolerance stackup analyses
  • Worst case vs RSS tolerance stackup

About The Author

Designer by heart , Engineer by Mind.
Worked in Automotive Product Development for 7 + years in Major OEM on Chassis and suspension design from concept to production .  
Currently building a knowledge platform for fellow design engineers to make learning engineering design easier more accessible and upskill the thinking to go beyond CAD and focus on Conceptual design driven by constraints backed by strong first principles.

Instructor on Udemy with  Best selling courses , teaching 82000+ students from 170+ countries with 30000+ ratings. 

Mufaddal Rasheed