Method and system for fabricating mixed-material 3D object
The present disclosure provides a method for fabricating a mixed-material 3D object, including forming, based on layer-print data of a target object, a layer-print product by one-by-one printing a plurality of pixels, using N 0 types of main materials for the target object; forming a plurality of the layer-print products by repeatedly forming the layer-print product; and forming a mixed-material 3D object by stacking one of the layer-print products on another. Each of the plurality of pixels is printed by N 1 types of the main materials and N 2 types of auxiliary materials, N 1 ≤N 0 , and when N 1 <N 0 , N 2 ≥1, and each of the plurality of pixels is formed by ejecting a plurality of ink droplets.
1. A method for fabricating a mixed-material 3D object, comprising:
layering a target object;
obtaining layer-print data based on structural information and nonstructural information of each layer of the target object, wherein the layer-print data includes layer structural data and layer nonstructural data;
forming, based on the layer-print data of the target object, a layer-print product by one-by-one printing a plurality of pixels, using N 0 main color materials for the target object,
wherein:
at least one of the plurality of pixels is printed by N 1 the main color materials and N 2 auxiliary materials, N 1 ≤N 0 , and N 2 ≥1;
each of the plurality of pixels is formed by ejecting a plurality of ink droplets;
each ink droplet includes only one of the N 1 main color materials or the N 2 auxiliary materials, wherein the main color material is different from the auxiliary material;
a number of the plurality of ink droplets ejected for each pixel equals each other;
at most one ink droplet of a same type of the main materials is ejected for each pixel;
the auxiliary materials include at least one of a white material and a transparent material; and
the N 0 main color materials include at least two of C(cyan) material, M(magenta) material, Y(yellow) material, BK (Black) material; and
forming a plurality of the layer-print products by repeatedly forming the layer-print product; and
forming the mixed-material 3D object by stacking one of the layer-print products on another.
2. The method according to claim 1 , wherein forming each of the plurality of pixels includes one or more of:
ejecting at least one ink droplet of the main color materials, and
ejecting at least one ink droplet of the auxiliary materials.
3. The method according to claim 2 , wherein:
at least one ink droplet of the main color materials is ejected for each pixel.
4. The method according to claim 2 , wherein:
at least one ink droplet of the auxiliary materials is ejected for each pixel.
5. The method according to claim 1 , wherein the nonstructural data includes at least one of color data or material-property data.
6. The method according to claim 1 , wherein forming the plurality of the layer-print products includes:
forming, according to the layer structural data, a layer-support product by one-by-one printing supporting pixels using supporting materials, wherein the layer-support product is configured to provide a support for adjacent layer-print products.
7. The method according to claim 6 , wherein:
the supporting materials include main supporting materials and the auxiliary materials;
each supporting pixel is formed by ejecting a plurality of supporting ink droplets; and
each of the plurality of supporting ink droplets is ejected using one of: one of the main supporting material and one of the auxiliary material.
8. The method according to claim 7 , wherein each supporting pixel is printed using at least one of the main supporting materials and at least one of the auxiliary materials.
9. The method according to claim 8 , wherein a number of the ink droplets for each pixel is same as a number of supporting ink droplets for each supporting pixel.
10. The method according to claim 1 , wherein the plurality of ink droplets for a single pixel are distributed on a same x-y plane.
11. The method according to claim 1 , wherein:
a total number of ink droplets of each of the plurality of pixels, which equals a sum of a number of ink droplets of main color materials of each of the plurality of pixels and a number of ink droplets of the auxiliary materials of each of the plurality of pixels, equals to each other.