Office of Continuing Education

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Classroom Option

Monday & Tuesday
October 14 & 15
8:30 am – 4:00 pm

Lunch included



Christa Sterling

Geometric Dimensioning & Tolerancing (GD&T)

Based on ASME Y14.5-2009, this instructor-led introduction course simplifies GD&T learning using mostly visual material to explain basics of GD&T application, interpretation and verification as well as implications from design to manufacturing. Exercises are used throughout the course.



This instructor-led course simplifies GD&T learning, using mostly visual material, to explain basics of GD&T application, interpretation and verification as well as implications from design to manufacturing. Exercises are used throughout the course. Students learn faster and retain more information with visuals and 3D objects.

The impact and importance of industry standards
Review of drawing standards and notes in practice
Coordinate tolerances and geometric dimensions
What is a tolerance zone

GD&T symbols and their changes over time
GD&T rules
GD&T in manufacturing and inspection

Straightness, Flatness, Circularity and Cylindricity tolerances

Datum systems and key factors
Datum targets
Datum referencing and simulation
Implications of material condition modifiers

Parallelism, Perpendicularity and Angularity tolerances

Position tolerance concepts and use
Understanding use of material condition modifiers
Position tolerance calculations
Concentricity versus position

Circular and total runout tolerances

Profile tolerance concepts and applications
Profile tolerance measurement

Who Should Enroll

Anyone interested in developing their career with GD & T. Participants should understand how to read basic prints/drawings used in manufacturing before taking this class.


Mr. Jim Speck, P.E.

Jim Speck has provided technical training including Blueprint Reading to a wide range of industrial and commercial personnel. Jim is a licensed professional engineer in Connecticut and has held technical and management positions with the Holo-Krome Company, Crescent Manufacturing and the Johnson Gage Company. Jim is the author Mechanical Fastening, Joining and Assembly, 1st and 2nd editions. He completed an apprenticeship at the Philadelphia Naval Shipyard and holds degrees from Drexel University and the Hartford Graduate Center.


Central Connecticut State University
1615 Stanley Street
New Britain, CT 06053
Room: Elihu Burritt Library 302-04


This class provided me with a lot of very useful information related to my position! Spring, 2024

Continuing Education is perfect for adding value and sharpening your skills! Fall, 2023

Very useful and informative for the time given for the course. Fall, 2023

Jim was very knowledgeable and applied a lot of real-life examples to a very complex topic. Fall 2023

Jim Speck did a great job presenting this topic! Summer, 2023

Great class! Summer, 2023

The GD & T course was very complete. Mr. Jim Speck was very knowledgeable and shared great useful manufacturing experience. A good experience with theoretical and practical knowledge. Aline, Fall, 2022

The instructor had a wealth of relevant work experience to draw from. Fall, 2022

Thank you for taking the time to teach us and helping us with answers. Spring, 2021

Mr. Speck is a great instructor. Highly recommended. Fall, 2019

Kept the attention of the class by relating content to real world experiences. Fall, 2019

Presents material in a clear and concise manner. Mr. Speck was an outstanding professor. The most knowledgeable man I’ve ever met. Fall, 2019

Great class! Great instructor! Spring, 2019

The book and material covered were very relevant and helpful to my work experience. Jim was an excellent and knowledgeable professor. Spring, 2019