Dental bridges, aircraft components, bodies and spare parts already come from the 3D printer. 3D printers are conquering more and more industries. Many people even think that 3D printing will usher in a new era of production. This trend report systematically deals with the developments in 3D printing and examines the opportunities and risks to the environment for the various fields of application, printing methods, materials used, etc. The report shows that environmental measures are necessary, such as, for example, 3D printing involves various pressures on human health that should be regulated.