Engineering drawing is a professional basic subject, based on the projection theory of descriptive geometry, with rulers, compasses and drawing boards as tools and blackboards, wooden models and wall charts as media, with a history of more than 200 years. Mechanical engineering drawing is an introductory course that embodies the characteristics of engineering, and it is also one of the professional basic courses that engineering students must study.

As the foundation of creative thinking, it plays an important role in cultivating students' spatial imagination and conception ability and promoting the process of industrialization. Engineering drawing is an indispensable technical document in production and a universal "engineering technical language". Drawing and reading engineering drawings correctly is an essential basic quality for an engineering technician.

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This course is a practical course closely related to production practice. Attention should be paid to when studying:

1. Master the principle and method of orthographic projection, and pay attention to the relationship between spatial shape and its projection.

2. Pay attention to cultivate the ability of imagination and conception of geometric shapes from space (object) to plane (pattern) and then from plane to space.

3. Develop the good habit of consciously observing the national standards of engineering drawing, and constantly improve the ability of consulting standards.

4. Master the methods of shape analysis and line analysis, and through a series of drawing practice, see more, think more and draw more, so as to improve the ability of independent analysis and solving drawing and drawing problems.

5. Consciously finish homework and gradually improve the speed, accuracy and skills of drawing. Seriously participate in the computer operation of computer drawing, and constantly improve the ability to draw engineering drawings with drawing software.