Three-dimensional modeling apparatus, control apparatus, control method, and three-dimensional object

摘要

A three-dimensional modeling apparatus includes a stage, a head, an adjustment mechanism, an ejection command means, and a control means. On the stage, a powder material is accumulated. The head ejects ink to the powder material on the stage. The adjustment mechanism adjusts a relative height of the stage and the head for each predetermined layer thickness so that a three-dimensional object is formed on the stage by the predetermined layer thickness. The ejection command means causes the ink to be ejected from the head so that the powder material is colored a plurality of colors corresponding to multilevel luminance information items in a multivalued image obtained by performing a multivalued processing of luminance with respect to a two-dimensional cross-sectional image data of a modeling target object. The control means controls the adjustment mechanism and the ejection command means so that the multivalued image is drawn for each layer thickness.

主权项

1. A three-dimensional modeling apparatus, comprising:
a stage on which a powder material is accumulated; a supply portion for supplying the powder material; a head to eject ink to the powder material on the stage; a first adjustment mechanism to adjust a relative height of the stage and the head for each predetermined layer thickness so that a three-dimensional object is formed on the stage by the predetermined layer thickness; a second adjustment mechanism to move a portion of the powder material from the supply portion above a substantially horizontal plane; a movement mechanism to transfer the portion of the powder material from above the substantially horizontal plane to the stage; an ejection command means for causing the ink to be ejected from the head so that the powder material is colored a plurality of colors respectively corresponding to multilevel luminance information items in a multivalued image, the multivalued image being obtained by performing a multivalued processing of a luminance with respect to data of a two-dimensional image that is a cross-sectional image of a modeling target object, the multivalued processing being an at least two-valued processing, the ejection command means also causing the ink to be ejected in a greater density on a top surface of a first area of the powder material for at least one predetermined layer thickness than on a top surface of an equivalent second area of the powder material for the at least one predetermined layer thickness so that the first and second areas of the at least one predetermined layer thickness have different hardnesses; and a control means to control the adjustment mechanism and the ejection command means so that the multivalued image is drawn for each layer thickness.