Due to new applications in CAD and CAM, the production of more complex forms and volumes becomes possible. Even some years ago, the possibilities of an architect were restricted to the specified limits of the software – if he worked with a CAD program. Today's softwares make these restrictions increasingly void. New CAD applications, like “Rhinoceros” and the corresponding “Grashopper” plug-in for example, allow digitally designed complex and free geometrical forms. If the pre-programmed tools do not meet the requirements, there is the possibility to “script” the required tools.