Mechanical drawing is the art of creating 3D models with CAD or computer-aided drawing and design. These computer programs Design 3D models that can be read by CNC machines and other manufacturing devices. Mechanical Drafters use special programs specially designed for the design of mechanical parts. Mechanical drawing itself is the development of machine parts and components. Upon completion, these documents are ready to be handed over to the manufacturer for production. CAD has existed for many years and is a new standard way to create technical drawings. These types of drawings include mechanical, construction, civil, electrical, MEP and any other type of technical drawings. CAD is essentially a computer program in which the CAD designer inputs information to achieve the desired design. In a 2D drawing, it uses three axes for comparison with two. X, Y, and Z represent length, width, and depth, which is the main difference between 2D and 3D. After creating the 3D model, it can be viewed from any angle, which has a great advantage over 2D. Design can be evaluated better and edited at any time. CNC machines make a large number of mechanical parts, and CAD software can tell these machines exactly what to create based on the information in the CAD file. Several other manufacturing methods use CAD to develop their products. Injection molds for plastics and other materials can be designed in CAD. In addition, fiberglass and carbon fiber molds were created using CAD. These are just a few examples of what CAD does, and the list continues. Anything around you, including the computer you read, is developed with CAD software. Each type of CAD software program is different. For example, in mechanical drawing, it contains commands such as drilling, cutting, extrusion, thread, chamfer, etc. These built-in commands allow the design process to be smoother and the design can be developed more efficiently. Some building CAD programs already have the functionality of 3D building walls, windows, doors and other objects. 2D is out of date and the only way is in 3D. Not all programs are so advanced, there will always be people swearing at 2D, but in this regard, 3D models have more advantages than 2D. CAD files are more versatile and flexible than old blueprints. You can transfer these files to the customer immediately by email. Also, when adjustments or updates need to be made, the CAD designer can simply open the file and make changes. They can work overtime to print tens of thousands of blueprints if they want, and files can be saved in security files and saved to your computer, flash drive or online. With these technological advances in the field of mechanical drawing, anything imaginable can be designed.