The present invention and numerical value of the object shape, without the rotation control of the screw based on the numerical information, it is possible to change the direction side of the shape into a form corresponding to the shape of the object, three-dimensional object, a with a three-dimensional object, three-dimensional molding apparatus and molding apparatus, as well as to provide a molding method using the molding apparatus. The invention relates to a plurality of screw 2 which are arranged to engage each other in the thread groove, the plurality of screws 2, respectively, be one rotatable independently one by one is, one by rotating the direction opposite to the other direction and independently movable screw assembly to 20, the rotary member 4 for rotating the screw 2 in the engaged state of engagement with the rotating screw 2 by the motive force is applied, one A one having a contact part 31 which constitutes the end portion of the direction side, which is provided with a release member 3 for releasing the engagement state when the contact portion 31 is moved with the movement of the screw 2 is in contact with the object 5 It is. .BACKGROUND 2【課題】物体の形状の数値化や、数値化した情報に基づくネジの回転制御をすることなく、一方向側の形状を物体の形状に対応した形に変えることができる、立体造形物、その立体造形物を備えた、立体造形装置および成型装置、ならびにその成型装置を用いた成型方法を提供する。【解決手段】互いのネジ溝を噛み合わせて配置された複数のネジ2からなり、複数のネジ2それぞれは、一本一本が独立して回転可能なものであって、回転することによって一方向と反対の他方向とに独立して移動可能なネジ集合体20と、動力が付与されることによって回転しネジ2に係合した係合状態でネジ2を回転させる回転体4と、一方向側の端部を構成する接触部31を有するものであって、ネジ2の移動に伴って移動し接触部31が物体5に接触すると係合状態を解除する解除部材3とを備えたものである。【選択図】図2
