ABS, Threaded Rods, Smooth Rods, LM8UU LM10UU, Bearings, Nuts and Screws :-), Belts with Steel Core GT2 Y-Axis (lower Frame), normal Belts GT2 Y-Axis (upper Frame). For more Information about the Materials checkout http://reprap.org/wiki/HardyGraph. More information about the OpenSCAD File checkout https://github.com/HardRainbow/HardyGraph