The Ultimaker 3 is a dual extruder 3D printer, with heated printing surface (maximum temperature 100°) of 215mm x 215mm. It allows to realize models and functional prototypes up to 200mm high with a maximum resolution of 20 µm. It uses 2.85 mm diameter filaments, including PLA (polylactic acid), PVA (polyvinyl alcohol), PET (polyethylene terephthalate), PA (polyamides), TPU (thermoplastic polyurethanes), ABS (acrylonitrile butadiene styrene). Tanks to the possibility of extruding simultaneously build material and water-soluble substrates, the printer makes it possible to create complex structures and components of fluid-dynamic circuits.