Learn Geometric Dimensioning and Tolerancing (GD&T) in One Day with Exercises Seminar

The IR Engineer Education Research Institute will hold a public seminar where participants can thoroughly learn the prerequisite skills for "GD&T (Geometric Dimensioning and Tolerancing)" – indispensable for creating drawings with unambiguous interpretation that are valid overseas – in one day with exercises.

In 2016, the importance of geometric tolerancing was advocated by JIS, but it is still not sufficiently widespread in the field. The recommendation indicated that the unambiguous interpretation of drawings is guaranteed only when geometric tolerancing is applied, and also highlighted the risk that Japanese drawings might become difficult to use overseas. In global manufacturing, it is required to appropriately express drawings and consider tolerances, such as representing functionally important "length/diameter" with size tolerances and functionally important "position" with position deviations.

Seminar Overview

Seminar Name: Fundamentals and Practical Application of Geometric Tolerancing (with exercises, one-day intensive acquisition)

Format: Online (Zoom LIVE streaming)

Date: Wednesday, June 24, 2026, 10:00-17:00

Those who apply for this seminar can receive a special offer: access to the archived streaming from June 26 to July 10, 2026.

Fee: 49,500 JPY (tax included) / per person (group discount available for multiple participants)

Instructor: Shohei Obata, Instructor (Representative of Obata Technical Consulting Office)

Course Details

This seminar carefully explains the fundamental "rules of geometric tolerancing" and "their interpretation," differentiating them from size tolerances, which are basic for building a quality assurance system using GD&T. The aim is to help all individuals involved with drawings, such as designers, manufacturers, and quality managers, correctly understand geometric tolerancing and apply it in practice, thereby improving the accuracy of global-standard drawing creation and tolerance consideration.

Seminar Program

Differences between Size Tolerances and Geometric Tolerances

(1) Understanding the Principle of Independence (2) Knowing Machining Variations and Measurement Variations

Fundamentals of Geometric Tolerancing: "Datum" and "Geometric Characteristics"

(1) How to specify datums (illustration method) (2) Datum priority (3) Relationship between machining/measurement and datums (4) Features defined by geometric tolerancing (5) How to specify tolerance frames

Controlling Shape: Understanding Form Tolerances

Straightness / Roundness / Profile of a Line / Flatness / Cylindricity / Profile of a Surface

[Exercise] Understanding correct and incorrect practices for form tolerances

Controlling Orientation: Understanding Orientation Tolerances

Parallelism / Perpendicularity / Angularity

[Exercise] Understanding correct and incorrect practices for orientation tolerances

Controlling Location: Understanding Location Tolerances

Concentricity / Symmetry / Position

[Exercise] Understanding correct and incorrect practices for location tolerances

Controlling Run-out: Understanding Run-out Tolerances

Circular Run-out / Total Run-out

[Exercise] Understanding correct and incorrect practices for run-out tolerances

Target Audience

Engineers who want to strengthen their drafting skills

On-site manufacturing personnel, production engineers

Measurement and inspection staff who read drawings incorporating geometric tolerancing *It is recommended that participants have at least 3 years of experience reading/drawing technical drawings in their regular work.

*For more details on this seminar, please visit:

https://nihon-ir.jp/seminar/geometric-tolerance_training/

IR Engineer Education Research Institute will continue to provide practical knowledge and know-how through technical education services (seminars, e-learning, training, publishing) for the manufacturing industry.

Nihon IR Co., Ltd.

In addition to patent and intellectual property solutions with over 50 years of experience, we widely offer highly specialized practical services centered on technology, such as research and analysis of technical information, technical education for the manufacturing industry, and technical content creation.

◆Company Website: https://nihon-ir.jp/ ◆IR Engineer Education Research Institute: https://engineer-education.com/

3F CYK Kanda Iwamotocho, 15-1 Kanda Iwamotocho, Chiyoda-ku, Tokyo 101-0033 TEL: 03-6206-4966