machines and machine tools for manufacturing 3D objects; extruders and heated extruders for use in the printing process, namely, extrusion moulding machines for 3D printing and rapid prototyping; Nozzles being parts of extrusion machines and extrusion systems in the nature of extrusion machines for use in printing processes, namely, plastic melt processing and drive processes; components of plastic and of metal for use in printing processes, namely, components of machines and machine tools in the nature of 3D printer hot ends, filament drive systems in the nature of 3D printing extruders, heat blocks, heat sinks, cooling fans, and 3D printer consumables, namely, rotary motion systems in the nature of rotary printing presses; parts and fittings for the aforementioned goods