This course "Principles and Applications of 3D Printing" aims to delve deep into the realm of 3D printing technology, equipping students with a comprehensive understanding of 3D printing. Throughout the course, students will master the principles and characteristics of various 3D printing processes, gain insight into the performance and applications of diverse 3D printing materials, become acquainted with the real-world applications of 3D printing in aerospace, healthcare, manufacturing, and other industries, foster 3D printing design thinking, and actively engage in research projects to drive innovation and development in the field of 3D printing. This course provides students with comprehensive knowledge and practical opportunities of 3D printing, enabling them to become experts and innovators in the field of 3D printing in their future careers.