Philosophy of modern
CAD Systems
lA Flexible Modelling environment
–Ability to easily modify models, and implement design
changes
–Support for data sharing, and data reuse
lKnowledge enabled
–Capture of design constraints, and design intent as well
as final model
geometry
–Management of non-geometric as well as geometric design information
lThe 3D Part is the Master Model
–Drawings, Assemblies and Analyses are associative to the
3D parts. If the part design changes, the downstream
models with change too.
Lecture 1