GD&T: Geometric Dimensioning and Tolerancing Training

Welcome, you’ve found CNCCookbook’s free Geometric Dimensioning and Tolerancing (GD&T) Training.

If you read through the lessons, you’ll learn the basics of GD&T which will be valuable to most CNC’ers.

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All of that is because we provide great information that is easy to understand, full of examples, and genuinely helpful. If you wonder what else you can learn here, be sure to check out the “Cookbooks” menu above, and by all means, subscribe to our weekly blog newsletter. It’s chock full of tips that you’ll find helpful in all sorts of ways as well as good fun to read.

Basic Concept Lessons

GD&T Basic Concepts

• History and Background of GD&T
• When and Why Use GD&T?
• Advantages and Disadvantages of GD&T
• GD&T Symbols
• Basic Dimensions
• Feature Control Frames
• Datums
• Basic Rules & Philosophy

GD&T Datums

GD&T Datum Feature Simulators and Datum Selection

GD&T Tolerances: Plus/Minus Tolerancing

GD&T Feature Control Frames

GD&T: MMC, LMC, RFS, and Bonus Tolerances

Reference Charts and Tables:

     GD&T Symbols: Complete Quick Reference Chart

Future Chapters (Coming Soon!):

– Tolerance Stack-Up Analysis

– ASME GDTP Certification

– GD&T Quiz

– Examples

Other GD&T Articles

How Well Do You Know GD&T [Important for CNC’ers!]