3D printing has reached a maturity stage, and, thanks to the low costs and various printable materials, 3D printers are becoming common household and laboratory appliances . Nowadays it is possible to produce physical objects tailored to the needs of each user in a short time, at low cost and low waste. Using 3D printers, in fact, it is possible to produce only the object needed directly on the spot where it is required without the need to mass produce several objects in a single place and then distribute them all over the globe. In this way, we reduce the amount of unused objects that will end up in waste, and the environmental cost of transporting them .