2D CAD: 2D CAD is a type of CAD software that allows users to create drawings that only show the length and height of an object.

3D CAD: 3D CAD is a type of CAD software that allows users to create drawings that show the length, height, and depth of an object.

Benefits of CAD: CAD software can help users to create drawings more quickly and accurately than traditional drafting methods. CAD drawings can be easily shared with other engineers and designers, which can help to improve communication and collaboration. CAD software can help to reduce errors in drawings, which can save time and money in the manufacturing process. 3D CAD models can be used to visualize products in a way that is not possible with 2D drawings. This can help users to better understand the design of a product and to identify potential problems.