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Three-dimensional modeling device and three-dimensional modeling method 新技術説明会

Foreign code F200010251
File No. HU2016019PCT-US
Posted date 2020年11月5日
Country アメリカ合衆国
Application number 201715574086
Gazette No. 20200156363
Date of filing 平成29年2月27日(2017.2.27)
Gazette Date 令和2年5月21日(2020.5.21)
International application number JP2017007407
International publication number WO2018154767
Date of international filing 平成29年2月27日(2017.2.27)
Date of international publication 平成30年8月30日(2018.8.30)
Priority data
  • 2017JP07407 (2017.2.27) WO
Title Three-dimensional modeling device and three-dimensional modeling method 新技術説明会
Abstract The three-dimensional modeling device includes a three-dimensional data acquisition unit that acquires three-dimensional data representing a three-dimensional structure with voxels, a discharge mechanism that discharges a laminated material including a plurality of kinds of dyes, and a control unit that controls the discharge mechanism based on the three-dimensional data so as to model the three-dimensional model. One of the voxels is divided into a plurality of elements in each of intersecting three directions, each of the plurality of the elements is provided with color data corresponding to one of a plurality of colors, and the color data of the element is determined such that all of a plurality of surfaces of the voxel has an approximately identical color.
Outline of related art and contending technology BACKGROUND
Technical Field
The present invention relates to a three-dimensional modeling device and a three-dimensional modeling method.
Related Art
In conventional 3D printers, a color 3D printer configured to color a surface shape has been proposed already in, for example, Patent Literature 1. However, the conventional color 3D printer is configured to only color a surface of a modeled three-dimensional model based on polygon data and similar data, and it has been difficult to color an inside of the three-dimensional model with a color truly reproducing a color of an original three-dimensional structure. The reason is that three-dimensional CAD data used for the modeling includes only data on the surface of the three-dimensional model not defining an internal structure of the three-dimensional model, and does not include color data of the internal structure. In view of this, a three-dimensional modeling device configured to precisely color even the inside of the three-dimensional model is required
Scope of claims [claim1]
1. A three-dimensional modeling method comprising:
acquiring three-dimensional data representing a three-dimensional structure with a plurality of voxels;
dividing a voxel of the plurality of voxels into a plurality of elements in each of intersecting three directions; and
providing color data corresponding to one of a plurality of colors to each of the plurality of elements, wherein providing the color data to the plurality of elements is performed such that a plurality of surfaces of the voxel has an approximately identical color.

[claim2]
2. The three-dimensional modeling method according to claim 1, the method further comprising rotating the voxel.

[claim3]
3. The three-dimensional modeling device according to claim 2, wherein rotating the voxel is executed when the plurality of voxels having an identical color are arranged side by side.

[claim4]
4. The three-dimensional modeling method according to claim 1, wherein the plurality of the elements included in the voxel have exposed elements that appear on one surface of the voxel, and core elements that are covered with the exposed elements, the method further comprising providing color data for color correction to the core elements.

[claim5]
5. A three-dimensional modeling device comprising:
a three-dimensional data acquisition unit that acquires three-dimensional data representing a three-dimensional structure with a plurality of voxels;
a discharge mechanism that discharges a laminated material including a plurality of kinds of dyes; and
a control unit that controls the discharge mechanism based on the three-dimensional data so as to model a three-dimensional model,
wherein a voxel of the plurality of voxels is divided into a plurality of elements in each of intersecting three directions,
each element of the plurality of elements is provided with color data corresponding to one of a plurality of colors, and
the color data of each element is determined such that a plurality of surfaces of the voxel has an approximately identical color.

[claim6]
6. The three-dimensional modeling device according to claim 5, wherein the control unit performs a control to rotate the voxel.

[claim7]
7. The three-dimensional modeling device according to claim 6, wherein the control unit performs the control to rotate the voxel when the plurality of voxels having an identical color are arranged side by side.

[claim8]
8. The three-dimensional modeling device according to claim 5, wherein the plurality of elements included in the voxel have exposed elements that appear on one surface of the voxel, and core elements that are covered with the exposed elements, the control unit further provides color data for color correction to the core elements.

[claim9]
9. A three-dimensional modeling device comprising:
a three-dimensional data acquisition unit that acquires three-dimensional data representing a three-dimensional structure with a plurality of voxels;
a discharge mechanism that discharges a laminated material including a plurality of kinds of dyes; and
a control unit that controls the discharge mechanism based on the three-dimensional data so as to model a three-dimensional model,
wherein a voxel of the plurality of voxels is divided into a plurality of elements in each of intersecting three directions,
each element of the plurality of elements is provided with color data corresponding to one of a plurality of colors,
the plurality of the elements included in the voxel have exposed elements that appear on one surface of the voxel, and core elements that are covered with the exposed elements, and
the control unit further provides color data for color correction to the core elements.

[claim10]
10. The three-dimensional modeling device according to claim 9, wherein when the color correction is not necessary, the control unit keeps the core element in white.
  • Inventor, and Inventor/Applicant
  • TOUMA TAKASHI
  • TANUMA CHIAKI
  • HOSEI UNIVERSITY
  • MUTOH INDUSTRIES LTD.
IPC(International Patent Classification)

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