Nowadays, VPM, Virtual product modelling (formaly known as parametric 3D CAD Modelling) is the principal means of communicating design ideas and developing new products and systems. VPM uses parameters to define a model (dimensions, for example). The parameter may be modified later, and the model will update to reflect the modification. Typically, there is a relationship between parts, assemblies, and drawings. A part consists of multiple features, and an assembly consists of multiple parts. Drawings can be made from either parts or assemblies. The most significant of these parameters are dimensions, constraints, relations etc. which drive the geometry, as opposed to the geometry driving the dimensions, which is the case in 2D and traditional 3D solid modellers. Therefore when you change a dimension value, this causes the model size to change. In addition, the relations or constraints used to create the features of a part are also captured in the model. We serve you best to make Virtual Products from Solid, Sheet Metal, Surface etc. models to detailed drawing to accelerate your design process in compliance with industry code of practice.