GD&T - Intermediate Principles

Model Number: [GDTL2]
Manufacturer: IIGDT

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Event Date(s):
2024-05-07 - 2024-05-08
2024-08-06 - 2024-08-07
2024-11-05 - 2024-11-06

Course outline:

Theory and rules of Geometric Dimensioning & Tolerancing: Introduction

  • Rule 1 on feature size
  • Rules 2 & 3 on material condition principles applied to features
  • Pitch diameter rule
  • Comparison of changes between ANSI U14.5M-1982 and ASME Y14.5M-1994

Linear transformation to GD&T

  •  Implications of +/- tolerancing
  • Conversion of square zone to diametral

Datums and datum features

  • Datum precedence
  • Planar datum features
  • Datum features of size
  • Inclined datums
  • Compound datums
  • Datum targets & partial datum features
  • MMC, LMC & RFS applied to datum features
  • Introduction to multiple hole patterns defined as a single datum

14 geometric symbols

  • Symbols & definitions
  • Tolerance zones
  • Actual mating envelope
  • Supporting symbology

Feature control frames

  • Single-segment feature control frames
  • Composite feature control frames
  • 2D analysis of single-segment & composite feature control frames
  • Virtual condition principles
  • Simultaneous requirements
  • Beginning levels of 3D analysis

Beginning analysis of measurement applications

  • Negative implications of specific measurement procedures
  • Analysis of data from case studies and formula calculations
  • Position calculation exercises & review of general guidelines

Global simplification of GD&T

  • GD&T boundary comparisons
  • Reduction of symbology (14 symbols down to 3)

Preview of GD&T Level III: Advanced Applications & Analysis

Productivity Quality Inc.
15150 25th Ave N.  Suite 200
Plymouth, MN  55447

Start/End Time:   8:00 AM to 4:30 PM 


Dr. Greg Hetland is an engineer, consultant, educator and author, and a recognized leader in dimensional tolerancing and physical metrology. He has over 30 years of experience in the aerospace, defense, and commercial industries and extensive expertise in the mechanical and precision engineering fields.

Seminar includes Continental breakfast, lunch, course materials and certificate of completion.

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Price Each: From $720.00
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Productivity Quality, Inc. has been the leading distributor of metrology systems in the Upper Midwest for over 30 years.

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