Based on ASME Y14.5 - 2009 standard, this is a 2.5 day class. Ordered and conceptually based tolerancing concepts are presented to help “see” how ASME Y14.5 is interpreted on engineering drawings of parts and assemblies.

This ASME GD&T course is geared towards those whom are required to interpret engineering drawings.

Emphasis is placed upon developing skills to clearly understand dimensional functions, datum (coordinate) locations, inspection requirements, and geometric and limit tolerance concepts.

Training is presented utilizing PowerPoint slides, physical models (parts), videos, white board detailing and lecture. Learners participate in individual and group exercises with trainer distributed worksheets and other documents.

Audience: This training is best for designers, mechanical engineers, quality engineers, manufacturing, dimensional inspection and others whom have had some or non exposure to geometric dimensioning and tolerancing. Entry level engineers, designer, scientist and other professions can benefit from this training series.

Typical 2 Day GD&T Basics Training Agenda

Day 1

• Introduction, Course objective, outline, course material distribution and questions
• Why Geometric dimensioning tolerancing? How the geometric system works.
• Terms and definitions, Common symbols & Terminology, Fundamental Rules (Drawing)
• Break
• Feature definition - With Size and Without Size, Material Condition (Maximum, Least, Regard of Material Condition), Limit Tolerancing, Dimension Origin
• Break For Lunch
• Limits of Size, Rule 1 or Envelope Principle, Go- No Go Gauges
• In-class group exercises and questions
• Break
• Datum Reference Frame - Theory & Interpretation, Datum Elements, View Oriented Datum's
• Review and Questions, Suggested reading assignment
• Break for Day
• Instructor available for questions and open discussion

• Day 1 review and questions
• Form Tolerances, Flatness, Verification, Surface Roughness, Straightness, Line Elements Applied to a Flat Surface, Circularity, Average Diameter, Cylindricity.
• Break
• Orientation Tolerances, Perpendicularly, Surface, One Datum Feature, Parallelism, Surface, One Datum Feature, Angularity, Surface, One, Datum Feature
• Group Exercises and review
• Lunch
• Profile Tolerances, Bilateral, Bilateral - Unequal, Unilateral
• Position Tolerances, Overview, Cylindrical Tolerance Zone, Rectangular Tolerance Zone, Composite - One Datum Feature
• Break
• Runout Tolerance, Circular Runout, Total Runout
• Review & Group Exercises
• Completion Certificates Distribution
• Break Class
• Instructor available for questions and open discussion

Day 3

• Day 2 review and questions
• Composite Position Tolerances
• Break
• Composite Profile Tolerances
• Selected special application interpretation
• Group Exercises and review

Course prices may be obtained by completing our request for quote form.

Training & Reference Books Used and Available

• Geometric Boundaries IV, ASME Y14.5-2018, Interpretation & Application of GD&T
• Geometrical Boundaries, ISO 1101, Interpretation & Application of GD&T Using SI Units
• Design for Manufacturing, Engineering - DFM Reference Book
• Ultimate GD&T Wall Chart
• GD&T True Position Coordinate Conversion Chart
• Design Engineering Productivity Products

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White Papers and GD&T Resources