PROBLEM TO BE SOLVED: To provide a three-dimensional printer capable of using low-cost, pellet-shaped raw resin and of significantly reducing material cost, for example, in large-scale molding or in molding of large-sized molded articles.SOLUTION: The three-dimensional printer is a fused deposition modeling three-dimensional printer. An extruding machine is comprised as an injection mechanism of a thermally molten resin. Upon a supply of pellet-shaped raw resin to the extruding machine, a three-dimensional object is molded by the thermally molten resin that is extruded from the extruding machine. The extruding machine is movable in three-dimensional directions. The extruding machine is placed upright so that its cylinder is substantially perpendicular, and the pellet-shaped raw material is supplied from the rear end of the cylinder. The pellet-shaped raw resin that is stored in a storage part is supplied to the extruding machine via a carrying passage.SELECTED DRAWING: Figure 1
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