1. INTRODUCTION
Disassembly is of great interest in current research as its aim is to achieve the optimal recovery and recycling of the components of a product. There are great benefits for both industry and the environment in recovering components from a product when its life-cycle has ended. When the components are recovered it reduces the number of new components that must be manufactured, thus reducing costs in the manufacturing process and in the amount of waste generated [6] [1]. When a disassembly task is to be performed, an important issue to be taken into consideration is the difference between the expected aspects of the component and the real ones. The component to be disassembled may change during its life-cycle, due to the way it has been used, and the environment in which it has been applied. Some sensorial system is therefore needed to achieve the correct model of the product that is being disassembled. It may also be a vision-system [3] that allows the obtaining of information about the real product.