1st we drwan a part in shape design workbench and we hav to make ramaning part in part design...how to active that part in part design workbench?
in catia v5
go to start-mechanical design-part design-insert-surface based feature or thick surface select the surface you've just made in GSD. now you can do things in part design
first make surface in generative shape design then go to part modelling by start meachanical design-part design then go to command "surface based features" and select thick surface for convert surface file in part model and then continue your work.hope this information make u so easy to make part.for further information mail me at firstname.lastname@example.org