A new method for investment casting using additive manufacturing (AM) is proposed. The method can be performed using an FFF printing device having dual nozzles. One of the nozzle deposits a first material while the second nozzle prints a second material different from the first material. Both materials are used to create molds for casting so as to manufacture an end product. The proposed method allows for printing of complex mold geometries.
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Heijmans, Tom, "FFF Printing of Dual Material Molds", Technical Disclosure Commons, (September 11, 2020)