3D Printing is a manufacturing a process where physical parts are made directly from a 3D CAD model using layer-by-layer material addition technologies.
No special tools are used and the proportion of handicraft is minimal. There is no direct need for part drawings in this process, although they may still be used for additional operations such as quality control. This, in turn, allows errors to be avoided (because the technological chain is shorter) and reduces the amount of human work. The process can be easily managed by computer systems.