Geometrical Tolerancing to ISO GPS – Advanced

An intensive two-day course in geometrical Tolerancing, which follows on from, and builds upon, the Fundamentals course.

Course Description:

This intensive two-day course develops the more advanced concepts of geometrical tolerancing to BS 8888 and ISO GPS standards. Participants expand their understanding of datums, material condition modifiers, tolerance interactions, and the deeper rules that govern the GPS system. The course focuses on advanced interpretation and correct application of the standards, with worked examples throughout and opportunities to discuss industry-specific scenarios.

Course Objectives:

By completing this course, participants will:

• Build on Level 1 knowledge - Reinforce core concepts from Level 1 and extend them into more advanced areas of the ISO GPS system.

• Master advanced datum structures - Learn how to define datums using complex surfaces, groups of features, contacting features, and situation features.

• Understand material condition modifiers in depth - Apply Maximum Material Requirement (MMR) and Least Material Requirement (LMR) correctly — including datum shift, bonus tolerance, and virtual condition boundaries.

• Explore higher-level GPS rules - Understand association, default and non-default filters, tolerance hierarchy, and how location/orientation tolerances influence form.

• Interpret complex drawings with confidence - Apply rules for non-rigid parts, projected tolerance zones, multiple feature controls, and grouped tolerances.

• Gain practical confidence - work on practical exercises with real drawings and parts to gain hands on practical experience.

Who it is for:

This course is designed for individuals who have completed Level 1 and require a deeper, more technical understanding of the ISO GPS system.

The course is particularly valuable for:

• Design and Mechanical Engineers

• Inspectors and Inspection Planners

• Drafters

• Machinists, Operators, and Tooling Engineers

• Sales, Purchasing, and Quality personnel

• Managers, Supervisors, and Production Associates

• Anyone who needs to read, interpret, or work with the standards on engineering specification

  
  

Requirements:

• Completion of Level 1 is required.

• Delegates don't need to bring materials, laptops etc. All materials are provided by GD&T Academy.

• Participants are welcome to supply drawings or components, which may be integrated into exercises to enhance course applicability.

• An upper limit of 10 delegates is advised to ensure effective learning.

Materials provided:

• Detailed course notes including drawing examples

• Workbook with exercises and other printable handouts

• Quizzes and knowledge checks to gauge progress throughout the course

• Certificate of course completion

Delivery Format:

• Onsite or online delivery

Duration:

• 2 days

Course Syllabus:

• Review of Level 1 material

• Guidelines for working with Geometrical Tolerances

• The GPS method

• Different worlds or states

• Association

• Default association criteria for defining datums

• Non-default association criteria for defining datums

• Filtration

• Size tolerances

• default size definitions

• non-default size definitions

• Datums

• situation features

• datums based on single datum features

• common datums based on aligned and non-aligned datum features

• datums based on groups of datum features

• datums based on complex surfaces

• identifying situation features on drawings

• datums based on contacting features

• moving datum targets

• The tolerance hierarchy

• How location and orientation tolerances control form directly and indirectly.

• Maximum Material Requirement

• Review of Maximum Material Requirement applied to tolerance values

• bonus Tolerance

• Virtual Condition boundaries

• Maximum Material Requirement applied to datums

• ‘datum shift’

• datums based on Virtual Condition boundaries

• Least Material Requirement

• Projected tolerance zones

• Tolerances applied to non-rigid components

• Multiple tolerances applied to groups of features

To book a course, discuss possible dates, or for further information:

About This Course: