Applications of 3D Printing in Engineering and Medical Practice Additive manufacturing, better known as 3D printing, has established itself as a transformative technology in which objects are built up layer by layer from digital designs. In contrast to conventional manufacturing methods, additive manufacturing enables the individual, precise and efficient production of complex structures. This newfound freedom of design has meant that additive manufacturing has long since established itself in various industries. This includes medical technology in particular, where its potential is already being used today and will play a decisive role in the future. At the Vienna University of Technology (TU Wien), the 3D Printing and Additive Manufacturing Technologies group headed by Prof. Jürgen Stampfl has been conducting intensive research into the development of additive manufacturing technologies based on photopolymerization for over a decade. This is a process in which liquid photopolymers are cured by light and built-up layer by layer. The process impresses with its high precision and resolution, as well as the wide range of materials that can be processed. These advances have already led to several successful spin-offs that have gained worldwide recognition. One of the greatest potentials of additive manufacturing lies in personalized medicine to produce patient-specific implants, prostheses and medications. These can be tailored to the patient's individual anatomy and specific requirements. This increases the success rates of treatments and shortens recovery times. Another advantage of additive manufacturing in medical technology is the variety of materials that can be used, such as biocompatible polymers, bioceramics or metal alloys. 3D printing has already found its way into medical professions and will become even more prevalent in the future.