Method and system for building painted three-dimensional objects
A method for printing a three-dimensional objet, layer by layer is provided. The method involves printing an inner region of a layer of the three-dimensional object and an outer circumference region. The inner region includes a white outline area and the outer circumference region surrounds the white outline area. The outer circumference region that forms an apparent colored surface includes colored voxels formed by depositing a transparent building material and at least one color additive material and is printed such that the resolution of the color additive is higher than the building material resolution.
1. A method for printing a three-dimensional objet, layer by layer, the method comprising:
for a layer, printing a bulk inner region of the layer of the three-dimensional object, and a white outline area; and
inkjet printing an outer circumference region of the layer surrounding the white outline area to form an apparent colored surface that includes colored voxels formed by depositing a transparent building material and one or more color additive materials, wherein a color additive material resolution is higher than a transparent building material resolution.
2. The method of claim 1 , wherein at least one of the colored voxels includes at least two of the color additive materials.
3. The method of claim 1 , wherein a droplet volume of the color additive materials is smaller than a droplet volume of the transparent building material.
4. The method of claim 1 , wherein the inner region of the layer further comprises the transparent building material.
5. The method of claim 1 , wherein printing the inner region of the layer and the white outline area comprises:
printing the inner region using the transparent building material; and
printing the white outline area using a white building material.
6. The method of claim 1 , wherein printing the outer circumference region comprises dispensing the one or more color additive materials before the transparent building material.
7. A three-dimensional object printed in layers, wherein printing a layer comprises:
printing an inner region of the layer of the three-dimensional object, and a white outline area; and
inkjet printing an outer circumference region of the layer surrounding the white outline area to form an apparent colored surface that includes colored voxels formed by depositing a transparent building material and one or more color additive materials, wherein a color additive material resolution is higher than a transparent building material resolution.
8. The three-dimensional object of claim 7 , wherein the inner region comprises the white building material, the transparent building material, or a combination thereof.