1. Establish solid basic knowledge: Mechanical design involves many basic scientific and engineering principles, such as mechanics, materials science, thermodynamics, etc. So, first of all, we need to have a deep understanding and mastery of these basic knowledge.

2. Learn related software: Modern mechanical design is mostly carried out by computer-aided design (CAD) software. Therefore, mastering these softwares is an important step to learn mechanical design well. Such as AutoCAD, SolidWorks, CATIA, etc.

3. Practical operation: Both theoretical knowledge and software skills need to be consolidated and improved through practice. By participating in experiments, internships and projects, you can apply what you have learned to practice.

4. Read professional books and papers: This can help you understand the latest design concepts and technologies and improve your design level.

5. Learn the ability to analyze and solve problems: Mechanical design is not only to design beautiful products, but more importantly to solve practical problems. So it is necessary to learn and cultivate the ability to analyze and solve problems.

6. Continuous learning: Mechanical design is a constantly developing field, and new design concepts and technologies are constantly emerging. Therefore, we need to keep the attitude of continuous learning and constantly improve our design ability.

7. Participate in professional training and certification: Some professional mechanical design training and certification can provide more systematic and in-depth learning, and it is also a good way to improve their professional ability.

Generally speaking, it takes time and energy to learn mechanical design well, but as long as you are interested and determined, you will certainly learn it well.