In this program it is possible to test the fracture of the parts. After the complete design of the product, it is also possible to view its 3D assembly this feature is used to introduce different parts of the system. The strengths of VariCad are its rich library and its many pieces. It is also possible to accurately calculate the different parts of the model. The graphical interface of this program is very simple and compact, and unlike many sophisticated mechanics, it does not take long to learn. VariCAD is a two-dimensional CAD design software for mechanical engineers . It provides all the tools needed to design, evaluate, and modify CAD models in one comprehensive platform. With this software you can design and edit a variety of 3D models. It is easy to define constraints and use different parameters. You can model any type of pipe, wire and other mechanical parts.