This lecture covers the principles of laser cutting, including 'cold' and 'hot' laser cutting techniques, focusing on the process, equipment, and materials involved. It also explores additive manufacturing, discussing early demonstrations and the cement hardening process. Additionally, it delves into two-photon lithography and polymerization, explaining the mechanisms and applications in microfabrication. The lecture concludes with a look at 3D nano-architected metals and the manufacturing process. Various technologies and materials used in these processes are highlighted, providing a comprehensive overview of advanced manufacturing techniques.