Along with a more efficient manufacturing process, the move towards 3D Design modeling has greatly improved design quality of our products because it is a more complete process than 2D design. As a result, many human errors that can occur with traditional 2D design methods are avoided. In the past problems such as component collisions, incorrect quantities or parts that don't fit, would happen because a designer who works in only 2D is forced to hold much of the information mentally. It is this point that gives rise to errors because the brain CANNOT visualize to exact scale. Reducing human error by using 3D Modeling Design methods has helped to minimize the need for re-work because the design quality improved greatly.