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"Advanced Geometric Dimensioning & Tolerancing"

Covers Advanced GD&T and related topics!

Who Should Attend?

This course is targeted at those who have already been trained in the basics of Geometric Dimensioning and Tolerancing.  Even the most advanced practitioners will learn more than they ever thought possible.


Course Content: 
Based on the comprehensive GD&T textbook co-published by the American Society of Mechanical Engineers (ASME) Geometric Dimensioning and Tolerancing-Applications, Analysis & Measurement [per ASME Y14.5-2009], this course has the ability to cover almost every facet of tolerancing.  Some of the general topic categories available to be covered are listed below. 

       ● GD&T
       ● Advanced GD&T Concepts/Applications

       ● Tolerance Stack-Up Analysis
       ● Statistical Tolerancing                     
Measurement, Inspection and Collected Variables Data Analysis
       ● Functional Gage and Fixture Design, Dimensioning and Tolerancing

      ●New Rules, Symbols and Concepts in Y14.5-2009 and the differences between ASME Y14.5M-1994 and Y14.5-2009


Course participants can choose which specific topics from the

text will be emphasized and discuss how these concepts can be applied

directly to their company’s products.        


Based on the rules found in the ASME Y14.5 standard, this course also covers topics from other recently published standards by ASME not found in older texts.

  • It includes step-by-step procedures for dimensioning and tolerancing parts and assemblies.

  • It shows how to analyze the tolerances applied using both worst case and statistical analysis.

  • It demonstrates the connection found between the application of functional geometric tolerances and its effect on manufacturability and inspection, stressing optimal ways to achieve a high-quality product at the lowest possible cost to the consumer.

Advanced GD&T Course Outline

(using the new textbook Geometric Dimensioning and Tolerancing-Applications, Analysis & Measurement [per ASME Y14.5-2009] and its accompanying workbook/answerbook by James D. Meadows)

1. Introductions/Expectations

2. Refresher of GD&T Principles from ASME Y14.5: Symbols, Rules, Datum Feature Symbols, Additional Symbols to Replace Notes, Material Condition Symbols, Boundaries, Simple Mating Parts, Converting from Plus and Minus Tolerancing to Position Tolerancing and Profile Tolerancing.

3. Practical Absolute Gage Tolerancing from ASME Y14.43.

4. Methods of Position Tolerance Verification (Boundary Method vs. Tolerance Zone Method).

5. Dimensioning and Tolerancing Rotating Assemblies with Hole Patterns.

6. Fixed Fastener Assembly Tolerancing, Threaded Features, Tolerance Distribution and Projected Tolerance Zones.

7. Tolerancing Mating Parts using Centerplane Datums.

8. Positional Boundaries on Elongated Holes, Pipes, Hoses, Tubes and D-Shaped Holes, All-Around and All-Over Profile Tolerancing.

9. Profile, Compound Datums, Compound Pattern Datums, Simultaneous and Separate Requirements.

10. Flexible Parts, Sheet Metal Panels, Elongated Holes, Positional Boundaries and Compound Datums.

11. Secondary and Tertiary Datum Features of Size, Datum Feature Shift, Displacement, Angular Orientation Datums and Simultaneous Requirements.

12. Oddly Configured Holes as Datum Features and the Design, Dimensioning and Tolerancing of their Gages and Fixtures.

13. Composite and Two-Single Segment Position and Profile Tolerancing.

14. Converting from Plus and Minus Tolerancing to Composite Positional Tolerancing.

15. Combining Composite Positional Tolerancing with a Simultaneous Requirement.

16. Using Two-Single Segment Position Tolerancing on Complex Floating Fastener Assemblies with Radial Hole Patterns.

17. Weldments that use Composite Tolerancing Inefficiently and Datum Selection Poorly and How to Correct Them.

18. Converting from Plus and Minus Tolerancing to Composite and Two-Single Segment Profile.

19. PC Board Tolerancing and Analysis.

20. Analyzing Collected Variables Data on Oddly Configured Parts with Profile Tolerances.

21. Tolerancing Oddly-Configured Mating Parts.

22. Tolerance Stack-Up Analysis.

23. Statistical Tolerancing.

24. New concepts in Y14.5-2009 are discussed (and compared to the 1994 Standard), such as: 
New Symbology and Rule Changes, Moveable Datum Target Symbol, Datum Translation Symbol, Specifying Degrees of Freedom Symbology, Calculating the Correct Material Condition Boundaries (Maximum Material Boundary, Least Material Boundary and Regardless of Material Boundary), Datum Feature BASIC Symbology, Specifying the Desired Material Boundary, Datum Feature Patterns Referenced at MMB, LMB and RMB, Oddly Configured Datum Features, Datum Feature Simulators (Theoretical and Physical), Irregular Datum Features of Size, Repetitive Patterns, Two and Three Level Composite Position and Profile Controls.

On-Site Information:
To inquire about scheduling an on-site ‘Advanced Geometric Dimensioning &Tolerancing’ workshop, contact James Meadows at (615) 924-3600 or
Public Workshops:
Check our website under ‘Public Workshops’ for public workshop dates for this course.
Course Materials:
Geometric Dimensioning and Tolerancing-Applications, Analysis & Measurement [per ASME Y14.5-2009] hardcover textbook and separate soft cover workbook/answerbook.  Geometric Dimensioning and Tolerancing in 2007 [per ASME Y14.5M-1994] textbook and workbook/answerbook may be substituted for on-site workshops.  Workshop materials also available for purchase through James D. Meadows & Associates, Inc.   

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