GPS ASME Standards – Level 1

Geometric Dimensioning and Tolerancing (GD&T) is the common, powerful language of industrial manufacturing. GD&T is recognized around the world as the only way of defining engineering drawings and CAD models efficiently and unambiguously. But the unfortunate reality is that most of the workforce that engages with mechanical drawings has an adequate understanding of this language. Many individuals and organizations get by for some time before costly or otherwise painful experiences convince them they need to improve their skills in use of GD&T.
The truth is that properly applied at the earliest stages of a product development project, GD&T can establish robust product quality, save months of development time, tens even hundreds of thousands of euros, and potentially millions over the lifecycle of a product.
GD&T training has real benefits: lower costs, less non‐conforming parts, higher tolerances.
InQuality, authorized partner of HEXAGON MI, offers on‐site and on‐line GD&T training courses.
Based on the latest ISO & ASME standards, our courses are tailor‐made to fully cover your particular needs.

The course is delivered as an intensive, three‐day programme that covers the fundamental concepts of geometrical tolerancing to ASME standards and its application and interpretation. Participants will discover how the system of geometrical tolerancing works, find out how to annotate and interpret drawings correctly, learn how different types of tolerance control different characteristics and how to choose the right tolerance for their application.
The course includes extensive classroom discussions, team exercises and problem‐solving sessions. Examples of drawings or components from the client, where available, are used in order to illustrate the course material. Suggestions to customize the course to specific participant needs can be discussed. To maximize the effectiveness of the training, an upper limit to the class size of 10 delegates is recommended.

Design, development, manufacturing, assembly and quality engineers, CMM and CNC programmers, tool
designers, toolmakers, technicians, and inspectors. In short anyone who creates, reads or edits mechanical
part drawings and models.

• Standards in context
  • the current ASME Y14.5:2018 standard; relevance and major changes since 2009 or earlier
  • ASME (GD&T) vs. ISO (GPS) and relevant national standards, future developments
• What is Geometrical Tolerancing?
  • benefits and advantages of Geometrical Tolerancing
  • major pitfalls of traditional coordinate tolerancing and how to overcome them
• Features and Features‐of‐Size, regular and irregular, Rule #1
• Linear size tolerances
•  Datum and datum systems
  • what is a datum? datum vs. datum features, datum targets, simulated and compound datum
  • selection of datum features and controlling 6 degrees of freedom
  • indicating datums on drawings, annotation and symbology
•  Tolerance frames
  • tolerance features & symbols, tolerance frame modifiers, Rule #2
  • 3D‐CAD Model Based Annotation (MBD) (as per ASME Y 14.41:2019) and 3D‐PMI
•  Basic dimensions (BSs)
• Tolerance characteristics (what do they really control? SLOF)
  • location, orientation, form and run‐out tolerances
  • profile tolerances, unequally disposed profile tolerance
• Finding your way through the system – how to choose which tolerance characteristic to use
• Simple Clearance Fits
  • worst Case Boundaries, virtual Condition & Virtual Size
  • size datum features (RMB), and size datum features (MMB)
  • Maximum Material Requirement and Bonus Tolerance