Geometric Dimensioning and Tolerancing Fundamentals 1 (Virtual Classroom)

Length:  days  CEUs:   PDHs: 

Scott Neumann is a senior partner in Technical Consultants, Inc. He specializes in geometric tolerancing and tolerance stack-up and analysis. He is also an expert in measurement and inspection techniques.

Scott presents geometric tolerancing training programs to engineering, manufacturing and quality personnel at major corporations in the USA and around the world. He was a major contributor to the Geometric Tolerancing Applications with Stacks workbook and the Geometric Tolerancing Stacks and Analysis workbook. He has also coauthored a book and coproduced a DVD video series to the ASME Y14.5-2009 Standard, Geo Tol Pro, A practical Guide to Geometric Tolerancing.

Scott is a member of the American Society of Mechanical Engineers (ASME) and is a senior level ASME certified, geometric dimensioning and tolerancing professional. He represents the USA in the International Standards Organization, ISO TC10 committee. He regularly attends the USA, ASME Y14.5 subcommittee on dimensioning and tolerancing. He is also a member on the ASME Y14.45, Measurement Data Reporting committee.

Scott graduated from University of Florida with a degree in Mechanical Engineering.

Patrick J. McCuistion, PhD, GDTPS, was an Associate Professor in the Engineering Technology and Management Department at Ohio University for 25 years. He taught Engineering Graphics, Geometric Dimensioning and Tolerancing, Dimensional Analysis, Quality Management Systems, Microsoft Office Suite, and Technical Writing. Prior to that, he taught three years at Texas A&M University and one year at Pittsburg State University. He worked eight years in various engineering design, drafting, and design and drafting checking positions. He has provided instruction in geometric dimensioning, dimensional analysis, gage and fixture design, and dimensional metrology to industry, military, and educational institutions since 1986. He is certified as an ASME Geometric Dimensioning Tolerancing Professional – Senior grade and as an ADDA Mechanical Drafter.
 
Dr. McCuistion has authored one book on geometric dimensioning, teaching courses on the following subjects: Drawing Interpretation, Basic Geometric Dimensioning and Advanced Geometric Dimensioning, and authored two, ASME self-study courses covering Drawing Formats, Line Conventions and Lettering, Orthographic and Pictorial Views, Dimensioning and Tolerancing, and Drawing Revisions.
 
Dr. McCuistion is active in the following ASME/ANSI codes and standards committees: Y14 Main, Y14.2 Line Conventions and Lettering, Y14.3 Orthographic and Pictorial Views, Y14.5 Dimensioning and Tolerancing, Y14.5.1 Mathematical Definition of Dimensioning and Tolerancing Principles, Y14.5.2 Certification of Geometric Dimensioning and Tolerancing Professionals, Y14.8 Castings, Forgings, and Molded Parts, Y14.35 Revision of Engineering Drawings and Associated Documents, Y14.36 Surface Texture Symbols, Y14.43 Dimensioning and Tolerancing Principles for Gages and Fixtures, Y14.45 Measurement Data Reporting, and Y14/B89 Joint Advisory Committee (JAC1) on the Specification of Notation to Support Requirements for Size and Geometric Tolerances.
 
As Chair of the national SkillsUSA Technical Drafting competition, Dr. McCuistion creates the yearly design and drafting problem with solutions and a written test and coordinates all competition details.  The problem to be solved includes drawing and assembling 3D computer models of a product and creating dimensioned 2D views of those models based on national drawing standards.

Day One

• Introduction to Geometric Dimensioning and Tolerancing
  • General overview
  • Geometric characteristic symbols
  • Rules, terms and definitions
  • Introduction to measurement principles, open set-up and CMM (coordinate measuring machine)
• Limits of Size
  • Rule #1
  • Features with & without size
  • Problems with plus/minus tolerancing
  • Limits & fits
• How the Geometric System Works:
  • Introduction to the datum reference frame
  • Datum precedence
  • Basic dimensions
  • Introduction to Position Tolerancing
  • MMC, LMC, RFS feature modifiers
  • Introduction to Profile Tolerancing

Days Two and Three

• Position Tolerancing and Verification
  • Verifying position
  • More on MMC, LMC, RFS feature modifiers
  • Paper gage
• Product Plans and Virtual Condition
  • Product definition drawing, manufacturing process plan, dimensional measurement plan
  • Introduction to boundaries
  • Calculating virtual size
  • Introduction to Datum Modifiers
  • Perpendicularity as a refinement of position
• The Datum Reference Frame:
  • Datums, datum features, datum feature simulators
  • Holes, slots, shafts, tabs, widths as datum features
  • Connection between the theory and physical
  • Datum feature precedence
  • Constraining the degrees of freedom
  • Datum feature simulator requirements
  • Partial datum features
  • Creating a Complete Datum Reference Frame
• Practical Problems