Model Based Definition

This training covers dimensioning and tolerancing of a 3D CAD model. Use of a 3D CAD model of this kind makes a 2D drawing unnecessary. It is important here to be able to provide the 3D model with the necessary 2D information (roughness values, fits, form and position tolerances, etc.). To enable this, the course makes ample use of the new symbols for form and position tolerances.
Depending on the CAD system you use, you may also be able to make extensive use of 3D CAD model dimensioning and tolerancing in practice.
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Training objective
The main goal of the course is to familiarise participants with the new additional form and position symbols and with the MBD process. During the course, you will discover how to use annotation mode tools to make an MBD model with the MBD process. You will learn how transfer 2D information to a 3D model, so all Product Manufacturing Information (PMI) is present, making the 2D drawing unnecessary.
In the two-day training session, participants will:
- Gain better insight into the MBD process and understand how to make MBD models.
- Familiarise themselves with new additional Form and Position tolerance symbols according to ISO 1101:2017.
General
- Maximum of 8 participants per session, in order to promote class discussion and interaction.
- The training is given onsite at the organisation of the participants
- The client will provide a projector and whiteboard.
- The training can be given in either Dutch or English.
- After completion, each participant will receive a certificate of participation.
Target group
The training is primarily intended for designers who need to create and approve 3D models, but anyone who deals with form and position tolerances in general is encouraged to participate.
Duration of the training
The complete ‘Model-Based Definition’ training course lasts two days. However, the course contents can be adjusted to the specific needs of your organisation, such as for a specific project or product group. The duration of the course can be adjusted in consultation.
More information
ISO 16792:2015
Contents of the training
Introduction
- Geometric Product Specifications terms and basic definitions
- Basic rules and symbols
- Data set and design model requirements
- Requirements for product definition data
Datum reference
- The datum system, Planar and Datum targets
- Datum reference frame, Degrees of Freedom and sequences
Geometric Tolerances
- Flatness, Straightness, Circularity and Cylindricity
- Perpendicularity, Angularity and Parallelism
- Tolerance of Position Controls
- Concentricity, Coaxiality and Symmetry Controls
- Profile of a surface and Profile of a line
- Circular runout and Total runout
- Multiple single segment controls and Pattern tolerancing
- Direction feature, Intersection plane, Orientation plane and Collection plane
Weld
Surface texture
CAD annotation elements
- Preparing Models for Annotation
- Creating Annotation Elements
- Modifying Annotation Elements
- Completing Combination States
- Feature descriptions and types
- Establishing DRF
Training materials
- Manual in English: “ISO GPS Ultimate Pocket Guide”, 141 pages.
- Syllabus: 165 pages in English.

ASME Y14.41-2012
Contents of the training
Introduction
- Geometric Product Specifications terms and basic definitions
- Basic rules, symbols and Actual mating Envelope
- Data set and design model requirements
- Requirements for product definition data
Datum reference
- The datum system, Planar and Datum targets
- Datum reference frame and sequences
Geometric Tolerances
- Flatness, Straightness, Circularity and Cylindricity
Perpendicularity, Angularity and Parallelism - Tolerance of Position Controls
- Concentricity, Coaxiality and Symmetry Controls
- Profile of a surface and Profile of a line
- Circular runout and Total runout
- Multiple single segment controls and Pattern tolerancing
CAD annotation elements
- Preparing Models for Annotation
- Creating Annotation Elements
- Modifying Annotation Elements
- Completing Combination States
- Feature descriptions and types
- Establishing DRF
Training materials
- Manual in English: “The Ultimate GD&T Pocket Guide ASME Y14.5-2009”, 121 pages.
- Syllabus: 143 pages, in English.

Information
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