Modelling of CAM systems to simulate of a milling machine work

Mechatronic is combination of three main disciplines: mechanics, electronics and theory of control. Part of them are CAD/CAM/CAE systems. This work presents the facilitating impact of CAD software on the design process. Basic modeling methods will be presented, including the creation of objects that are the composition of several smaller parts. There are many programs being CAD / CAM / CAE software, however, in order to achieve the assumed goals, Siemens software - NX will be used. It is used to create a simple CAD object and a more complex model that is a milling machine. The simple detail will be presented to describe the basic functions useful during modeling 3D objects, such as sketch-based generation and further modification of the created model. Describing the created milling machine is related with the presentation of the types of constraints. They were used and the way in which selected machine axes were generated, including kinematic and geometrical parameters.