Abstract: A method of producing a molded article includes forming an outer portion of a material that is soluble in a solvent, the outer portion having a predetermined shape; forming a covering portion of a first flexible material, the covering portion covering the outer portion, the first flexible material being insoluble in the solvent; dissolving the outer portion with the solvent, the outer portion being covered by the covering portion; and filling an area covered by the covering portion with a second flexible material, the area being obtained by dissolving the outer portion.

Abstract: Provided is a three-dimensional modeling apparatus including a supply mechanism, a deposition area, a variable mechanism, a discharge mechanism, and a control means. The supply mechanism supplies a powder material. In the deposition area,, the supplied powder material is deposited. The variable mechanism varies a volume of the deposition area per a predetermined layer thickness, and thus the powder material is deposited per the predetermined layer thickness in the deposition area. The discharge mechanism discharges liquid for forming a three-dimensional object to the deposited powder material, the liquid being capable of hardening the powder material. The control means causes the discharge mechanism to discharge the liquid to the powder material, to thereby form a main body being an object being as a target to be modeled and a frame body being an object to be formed in a periphery of the main body, of the three-dimensional object.