3-Day Fundamentals of GD&T Class

December 6–8, 2021
February 7–9, 2022

Prerequisites: Blueprint Reading Skills (recommended, or equivalent experience)
Text: GEOTOL Pro Fundamentals Workbook 2009
Instructor: Jacek Macias
Location: 302 E. Main St., East Dundee, Illinois 60118

Our GD&T training class is a basic, practical, & straightforward approach to geometric tolerancing and conforms to the Standard ASME Y14.5M-2009. In this program, we focus on the “what, when, why, and how” of GD&T.  The main objective is to bring all participants to a common, basic, and operational level of understanding. Our basic GD&T class will benefit employees in many different roles in manufacturing including inventors, designers, engineers, quality inspectors , machinists, CNC operators, and many more!

Participants will leave the course with a comprehensive understanding of basic GD&T principles and their applications, and will also know how to interpret GD&T on engineering drawings. Attendants should have a basic knowledge of how to read blueprints and engineering drawings prior to taking this course. We do offer a 2-Day Basic Blueprint Reading course if you feel you need more instruction before GD&T.

  • The expert-led training goes over the history of GD&T and will provide an in-depth study of geometric characteristics and tolerance zones, in an easy-to-understand format.
  • The class is lecture-based, but also provides time for student questions and classroom discussions. We encourage all students to bring their own drawings to share their struggles and to learn from others. (with permission from your company, of course!)
  • Each student will also leave with a GD&T Pocket Guide which serves as an excellent resource post-training — A small, quick reference when you’re looking for help on the job!

Syllabus available upon request

Next Scheduled Course:
February 7-9, 2022
8am–4pm (8 hr days)
$949 per student
Lunch Provided Daily

basic gdt training illinois

2-Day Advanced GD&T Class

September 23–24, 2021

December 9–10, 2021

February 10–11, 2022

Prerequisites: Blueprint Reading Skills, Basic fundamental knowledge of GD&T (recommended)
Text: GEOTOL Pro Fundamentals Workbook 2009
Instructor: Jacek Macias
Location: 302 E. Main St., East Dundee, Illinois 60118

This course is intended for experienced users of concepts of ASME-Y14.5-2009 standard. Designed to cover the more advanced applications of geometric dimensioning and tolerancing, participants will leave the course with an understanding of how to apply the principals as well as a deeper understanding of GD&T benefits.

Improve efficiency through appreciation of the concept of inspection-oriented tolerancing, testable datums, and a true cost of undue constrains placed on the geometric aspects of design. Reduce time wasted by designers , manufacturers, and inspectors by increasing their awareness of downfalls of using incomplete drawings or drawings with incorrectly applied GD&T. This advanced course is aimed to provide a solid understanding of datum selection, tolerances zones and application of advanced geometric tolerancing theory. Students will be effectively trained on how GD&T controls the functions of complex designs and it’s ability to communicate geometric tolerances appropriately on their own prints.  

  • Datum Reference Frames – Datum selection and what it means for manufacturing and inspection
  • The applications of position tolerance are explained in detail including fixed and floating fastener formulas.
  • Composite and Multiple Single Segment Profile Tolerancing

Syllabus available upon request

Next Scheduled In-Person Course:
February 10–11, 2022
8am–4pm (8 hr days)
$630 per student
Lunch provided daily

“Being able to visualize the tolerance bands of GD&T callouts has greatly improved my understanding of GD&T and has equipped me to give recommendations to machine operators of how to correct things like runout & flatness issues.”

QA Assurance Supervisor, Illinois Gear Manufacturer

Learn the fundamentals of manufacturing, engineering, and metrology – whether you’re designing parts, making them, or measuring them.
  • Symbols & Terms
  • How GD&T works
  • Position tolerance verification
  • Datums, Datum reference frames, Datum Targets
  • Single segments, 2 single segments vs composite
  • Formulas—Fixed and Floating
  • Screw treads, Coaxial
  • Form tolerance—Flatness, Straightness, Circularity, and Cylindricity
  • Orientation tolerance—Parallelism, Angularity and Perpendicularity
  • Profile tolerance—Line and Surface
  • Location tolerance—Position, Concentricity and Symmetry
  • Runout—Circular and Total runout
  • Modifiers, RFS, LMC, MMC, Projected tolerance, Tangent plane


Ready to Register for GD&T Classes?


Cancellation Policy

By the Student: Participants with a confirmed course registration may reschedule or cancel their reservation(s) without any cost up to 10 business days before the scheduled class start date. Substitutions may be made at any time prior to the course start date by email or calling our facility. Participants who cancel a confirmed registration less than 10 business days before the course may be billed for 100 percent of the course list price. Participants who fail to appear for training without a prior notice, will be billed for 100 percent of the course price.

By Made To Measure: Made to Measure reserves the right to postpone, reschedule, or cancel any scheduled training courses. Participants may register for the next available course offering or cancel their registration, without penalty. Any payment made for the canceled course will be refunded in full. The participant understands and agrees that Made to Measure, LLC shall not in any way be held responsible or liable for any costs incurred by the participant, including but not limited to costs related to changes or cancellations in travel plans.

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