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Three-dimensional engineering drawing-product three-dimensional modeling technology and application is the research result of the sub-project "Research and practice of engineering graphics curriculum system and teaching content" of the tenth five-year national planning project of educational science "265438+innovation and practice of China higher education talent training system in the 20th century". This paper mainly describes the expression of three-dimensional graphics in product design, that is, three-dimensional modeling theory and three-dimensional modeling practice. The main contents include mechanical design overview, theoretical basis of 3D engineering drawing, product parts modeling, product assembly modeling, product assembly feasibility verification, product 2D engineering drawing, and introduction of basic knowledge of application software. , which can be used for students to continue their study after completing the traditional engineering drawing course. The 3D software used in 3D Engineering Drawing-3D Modeling Technology and Application of Products is CATIA V5 R 17. When using 3D engineering drawing-3D modeling technology and application of products, readers should practice on the computer to get better results. The CD attached to the back of the book contains source files of examples and exercises in the book and some modeling operation videos for readers to practice and refer to. Three-dimensional engineering drawing-product three-dimensional modeling technology and application can be used as a teaching material for the training of three-dimensional engineering drawing and modelers in mechanical and near-mechanical majors in engineering colleges, and also as a technical reference book for engineers and technicians engaged in digital product design.

In fact, you still need to practice more drawings and products. If you draw too many pictures, you will understand naturally. Advice from someone who has been there!