In the scope of this diploma thesis, interactive manipulation procedures with CNC machines are researched based on algorithms which generate two or three-dimensional structures.

In conventional CNC-supported implementations from virtual models into physical ones, all design decisions must be made beforehand and the production processes are linear and inflexible, thus not utilizing the full potential of the machines for the designer.

In this context, systems are examined and suitable constraints are defined which allow human interventions of intuitive kind in the fabrication process, establishing an interactive interface between virtual and physical reality.

A Kuka industrial robot is expanded by open interfaces allowing its online control through an external system, which can be connected to various input and output devices, as well as with sensors. Therefore, the proprietary robot system is opened by platform independent extensions, and a basis is created for interactive design processes focusing on the machine not only as a manufacturing automaton, but also as a design tool.

Besides studying the theoretical base, the discussed concepts are actually tested in systematic experiments.