Fundamentals of GD&T

Fundamentals Of GD&T

You don't want to miss this course!

The last time the SOD Center offered this class was in February of 2023 and it sold out!!!


TechCred Eligible! Application Link:


Any questions? Email Eva at

2 Day Course

Tuesday, October 10, 2023

Wednesday, October 11, 2023


Live & In-Person


Fundamentals of GD&T Course Book will be provided.

Lunch will be provided both days!


Bring old drawings to use in class!



Registration Deadline:

Tuesday, September 26, 2023


Minimum Class Requirement: 8


We will not offer this class again until Fall of 2024!

Tue, Oct 10, 2023 -  Wed, Oct 11, 2023
09:00 am -  04:00 pm
Registration options:
Ticket Name Ticket Price Qty
SOD Members
Course fee includes lunch both days & GD&T Handbook.
$ 802.00
Course fee includes lunch both days & GD&T Handbook.
$ 963.00

Event description:

The Fundamentals of GD&T Program is designed to develop a basic working knowledge in geometric dimensioning and tolerancing per the ASME Y14.5, 2009 standard. This program covers what people need to know in order to work in an engineering, manufacturing and quality environment. The basic philosophies of how, when, and where to apply GD&T along with tips for producing quality parts are included. Discussion also covers the application of geometric tolerancing to design, manufacturing and quality control. The program materials contain a variety of computer color animated graphics and video clips which
allow the students to clearly understand the concepts and keep participants engaged throughout the program.

Who should attend?
Engineers, machinists, inspectors, tool makers, operators, quality professionals, and all
those needing to understand engineering drawings.

Day 1

Introduction to GD&T
ASME and ISO standards and history of
GD&T Symbols
Features of a part
Geometric Tolerancing categories and shapes
Feature control frames
Features and limits of size
Rule #1, the Taylor Principle
Functional gage introduction
Dimension origin concept and symbol
Plus / Minus tolerances
Comparing positional vs. plus /minus tolerances
How GD&T works
Selecting the proper feature modifiers
Applications of RFS, MMC and LMC
Former modifier rules

Day 2
Position Verification
GD&T practical application
Three plans for a quality product: Design, Manufacturing, Inspection
Datum reference frames
Degrees of freedom
Right hand rule
3-2-1 concept
Datum feature concepts
Regardless of material boundary concept
Establishing a datum reference frame
Primary, Secondary, Tertiary datum’s
Constraining degrees of freedom
Practical applications of GD&T


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