CAD is also known as computer aided design. It is a design that is drafted for the use of technical and engineering drawings with the out come of 3D dimensions. CAD may be used to design curves and figures in two-dimensional or surfaces, curves, and solids in three-dimensional objects. CAD/CAM is an expert service. CAD is an important industrial art that is extensively used in many applications like automotive, shipbuilding, aerospace industries and architectural designs. CAD & CAM resources are automated design, which is used for technical Drawing, visualization. It's even used to design tools and machineries for industries. CAD is mainly used for detailed engineering of 3D models and drawings of physical components, layout of products and strength and assembling of the products. Computer-aided design is one of the many tools used by engineers and designers and is used in many ways depending on the professional back ground.