2-Day Advanced GD&T Class

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 principles 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 constraints placed on the geometric aspects of design. Reduce time wasted by designers, manufacturers, and inspectors by alerting them to the difficulties 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 its 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 Course:

2-Day Advanced
May 23-24, 2024

8am–4pm (8 hr days)
$900 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