The aim of this course is to familiarize the student with standard design elements and their integration into mechanical systems. It covers 2D and 3D computer graphics. 3D modeling and detail design. To develop an understanding of computer-aided design, analysis, and machining techniques and related these to the design. Designers generally use drawings to represent the object which they are and to communicate the design to others. Of course, they will also use other forms of representation — symbolic and mathematical models, and perhaps three-dimensional physical models — but the drawing is arguably the most flexible and convenient of the forms of representation available. Drawings are useful above all, obviously, for representing the geometrical form of the designed object, and for representing its appearance. Hence, the importance of computer-aided design (CAD) of the production of visual images by computer, that is computer graphics. In the process of design, technical drawings are used. Drawings explain the design and also establish the link between design and manufacture. The stage of the design and details depends on the designer's skill and experience. Changes in previous designs take a long time because the drawings have to be produced again.