From Complex CAD Model to Mould Casts

Product development should begin by fulfilling the product’s primary functions during the concept stage, whereas its auxiliary functions are added later, during the detailed design. Nowadays, nearly all products with an external shape that is related with the human or natural environment are developed in such a way that the product shape is developed as a single uniform body, which is later cut/split into individual components of the same system. In this chapter the activities will continue on the model created in the case study started in the previous chapter. The chapter will explain how to cut up a uniform solid CAD model into several bodies and how to create joining edges and make a new assembly with the newly created bodies. Later, one such created hand-blender casing’s components serves as an example of creating a mould cavity with one tool cavity for injecting a polymer product. This case study presents additional commands to use with surfaces, features for creating design elements that are characteristic of the products made by polymer injection moulding, and creating parting curves and planes, up to the point of creating a tool cavity.