CATIA Training-Core&Cavity Design

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Function Import Model provides a way to do in a single action several operations that otherwise would need to be performed separately :
Create a new Part (the Molded Part) with associative reference to the Design PartDefine a reference axis systemApply shrinkage to the design Part.However, this function is not mandatory : you can apply other Core and Cavity Design functionalities (Main Pulling Direction, ) to a Part which does not result from Import Model.

There are two ways to work in Surface mode :With a single Surface, typically a closed skin (default mode)With a set of Surfaces, for example in a preliminary design stage where a closed skin is not yet available