Three-dimensional modeling apparatus and three-dimensional object manufacturing method
A technology for 3D modeling and objects, applied in the direction of manufacturing aids, additive manufacturing, manufacturing tools, etc., can solve problems such as reduced color reproducibility
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no. 1 approach
[0036] figure 1 An explanatory diagram showing a schematic configuration of a three-dimensional modeling device as a first embodiment of the present invention. The three-dimensional modeling apparatus 100 includes a modeling unit 10 , a powder supply unit 20 , a flattening mechanism 30 , a powder recovery unit 40 , a head 50 , a curing energy imparting unit 60 , and a control unit 70 . The computer 200 is connected to the control unit 70 . The three-dimensional modeling device 100 and the computer 200 can also be combined as a generalized three-dimensional modeling device. figure 1 The X direction, the Y direction, and the Z direction orthogonal to each other are shown. The Z direction is a direction along the vertical direction, and the X direction is a direction along the horizontal direction. The Y direction is a direction perpendicular to the Z direction and the X direction.
[0037] The modeling unit 10 is a tank-shaped structure that models a three-dimensional object...
no. 2 approach
[0075] Figure 8 (A)-(F) is a schematic diagram of the example of the unit cell of 2nd Embodiment. Figure 8 (A) to (C) exemplify the first e unit grid UG1e and the second f unit grid UG2f after the colored ink and clear ink have been discharged, Figure 8 In (D) to (F), the first g unit lattice UG1g and the second h unit lattice UG2h are exemplified. The unit cells UG1e to UG2h of the second embodiment are configured such that transparent ink is always ejected from the uppermost portion.
[0076] The head of the second embodiment has the same head 50 as the first embodiment ( figure 2 ) have the same configuration, but the amount of the second clear ink CL2 to be discharged is different. The discharge amounts of the colored ink and the first clear ink CL1 are the same as those in the first embodiment. That is, the head of the second embodiment discharges 2 pl of colored ink when the discharge amount of colored ink is "small", 4 pl when it is "medium", and 6 pl when it is...
no. 3 approach
[0086] Figure 9 (A) and (B) are schematic diagrams of an example of the unit cell UG of the third embodiment. Figure 9 (A) exemplifies the first n unit grid UG1n, the second p unit grid UG2p, and the third q unit grid UG3q after the colored ink and the colorless ink have been discharged. Figure 9 In (B), the first r unit grid UG1r, the second s unit grid UG2s, and the third t unit grid UG3t are exemplified. The number of unit cells UG used to express one color of the surface of an object is not limited to two. In the third embodiment, one color of the outer surface of the object is represented by the colored ink discharged to the three unit cells UG. which is, Figure 9 In (A), the color of the bottom surface of the object viewed from the bottom surface side (Z direction side) of the first n unit cells UG1n is expressed by a combination of colored inks discharged to the unit cells UG1n to UG3q, Figure 9 In (B), the color of the bottom surface of the object viewed from ...
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