Using laser sintering technology to resin sand and the disappearable melting mold for the molding material, and then through the combination with the casting technology, the rapid casting of the engine block, cylinder head, turbine, impeller and other complex components. Equipment, forming large size, high efficiency, high precision printing (automatic feeding, two-way powder), not affected by the complexity of parts, no need to open a direct print wax mold, sand mold, all kinds of plastic pieces and so on.