Abstract: 3D-CAPP system based on the mixed construction of B/S and C/S is put forward and
designed in view of the problems of machining complexity, long design cycle and unintuitive
browse chart for high precision, laminose and abnormity cavity components of complex
electromechanical products. The system structure and work flow are presented. The key technology of
unit identification, combination sash identification and 3D annotation of technics information,
dynamic technics model constitution based on manufacture process and 3D technics card constitution
in building of technics MBD model is researched. Finally, an application example is provided. It is
showed that by using uniform model in design and manufacture process development cycle can be
shortened and cost be reduced.

Key words: model based definition, technics information combination sash, 3D annotation, dynamic
technics model, 3D technics card