Creating Complex CAD Models with Freeform Surfaces

Using a combination of surfaces and their transformations, one advantage of surface modelling is the ability to be able to create such CAD geometries that would not be possible only by combining the basic features of solid modelling. Using the example of a mass-market product—a hand blender—a number of procedures for working with surfaces are presented that can lead to a final target shape. Choosing a particular step depends on the functional and technical views, as well as the mathematical rules of CAD surface modelling. The choice of the model is not random, as modelling end products for mass-market products belongs to the most demanding design tasks, as it requires fulfilling a variety of working and design functions, many compromises, a great deal of experience and work, all at the same time. Here, it is important to understand the logical, mathematical properties of curves, surfaces and operations for working with them. Thus, this chapter brings the theory from the first chapter of this book into practice.