Advantages and disadvantages of mechanical 2d paper (cad)

2d drawings, which we also call engineering drawings.

The main advantage is that it is convenient to express various complex technical requirements of products in a set of various two-dimensional views. It is a drawing used in actual production, so it is also called engineering drawing.

The disadvantage is that each view can only express the geometric and technical requirements information of the product in a certain projection direction. When looking at drawings, it is often necessary to synthesize a variety of different views to imagine the comprehensive appearance and technical requirements of products. Intuition is not strong, and it is difficult to read 2d drawings without professional training in cartography and map recognition. Therefore, the design and drawing of a single 2d map need to learn a lot of projection theory and drawing standards, although it is easy to make mistakes and the output efficiency is low.

In order to overcome the above shortcomings, the current generation of 2d graphics depends on designers to design with 3D modeling software and automatically generate 2d graphics.