In this day and age, 3D geometry can be displayed on any smartphone and has become a part of everyday life for a good many people. In most companies, on the other hand, 2D drawings are still state-of the art in the product development process. Paradoxically, it is not the fact that dimensions and tolerances are incorporated in the 3D model rather than the 2D drawing that is key to the 3D master. What is more important is the fact that the 3D master allows completely digital and thus machine-readable product documentation to be created which can be used to provide everyone involved in a process with correct and up-to-date product information. Therefore, the maxim “no digitalization without a 3D master
” is more true today than ever.
) allows geometric dimensioning and tolerancing
(GD&T), materials, structures, BOMs, product manufacturing information (PMI), configurations, etc. to be specified in the 3D CAD model (3D master) and made available using so-called technical or digital data packages. Model-based engineering comprises not only MBD but also system modeling
(see MBSE) and simulation (including CAE
) in order to improve efficiency and quality in the development process and reduce the costs and time involved. Therefore the objective is to achieve integrated, end-to-end model-based development and avoid a document-based approach and file-based data exchange.