Over the past years, the more and more stringent regulations on environmental impact of automotive industry have pushed manufacturers to strive for new solutions in terms of weight reduction. This phenomenon is translated in the well-known procedure of metal replacement, which has been present in the automotive world for a few decades but is lately gaining traction; this is thanks to the rising of a new series of polymer which can compete with the main metals used in the automotive world (steel and aluminium). To this day, metal replacement is adopted principally through the substitution of metal parts with plastic ones, in the majority of case injection moulded, while Additive Manufacturing, another process which is constantly spreading in the industry, is rarely taken into consideration.