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High End CAD/CAM Packages: Parametric Modelling packages dominate the high end market, such as Pro/Engineer, Unigraphics and CATIA. Parametric modelling i
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Literature Survey High End CAD/CAM Packages: Parametric Modelling packages dominate the high end market, such as Pro/Engineer, Unigraphics and CATIA. Parametric modelling is basically explained as; rather than models being constructed like a blob of plasticine, with bits being added or removed to make changes, the user constructs a list of features or parts, which are stored by the program and can be used to change the model by rebuilding it with modified parameters. Parts drawn and saved are imported into an assembly where they are mated or constrained to build complex assemblies. One feature that seperates the high end packages to the mid range is how the programs have evolved, programs such as SolidWorks, Inventor, and Solid Edge have always run on Windows and as a result haven't had major changes to their user interfaces. But high-end programs such as the ones mentioned above have undergone major interface overhaul, a result of...
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