machines

Apart from very high level machines, costing several million dollars each, 3-D printing tends to produce items that are less ‘resistant’ than classic moulded parts. Layer by layer build-up leads to a structural weakness in the 3rd (vertical) dimension This material drawback affects state-of-the-art processes such as selective laser sintering using polyetherketoneketone (PTKK). The surface quality is rougher.