Fabricating full color three-dimensional objects

Abstract

A method, computing system, and one or more computer-readable storage media for fabricating full color three-dimensional objects are provided herein. The method includes transforming a three-dimensional model into instructions for a fabrication device by slicing the three-dimensional model into layers with color information preserved, generating two-dimensional polygons for each layer based on colors on faces, colors on textures, and / or gradient colors, and determining a tool path for fabricating an object from colored materials based on the two-dimensional polygons for each layer. Determining the tool path includes generating instructions that direct the fabrication device to apply colored material for all two-dimensional polygons of a same color before switching colors, smooth an exterior of the object by switching colors at an internal vertex of each two-dimensional polygon within each layer, and deposit transitional material within an infill area, a support structure, and / or an area outside the object when switching colors.

Description

Background technique [0001] Numerous techniques exist for creating digital models and producing three-dimensional solid objects of almost any shape from the models. These processes can be called 3D printing, rapid prototyping, bonded wire, additive manufacturing, etc. One technique involves processing ultraviolet (UV) sensitive resins using ultraviolet (UV) light, which can be laser or projection. To print an object, the object is coated with a layer of resin either by lowering the object into a vat such that a tiny layer remains above the object, or by submerging the object in the vat until it almost hits the bottom. The UV light processes the resin into the desired shape for the layer. However, this technique may limit the number of resins that can be produced. [0002] Another technique for adding material, such as thermoplastic filaments, to the layers involves extruding thermoplastic filaments through an extruder (or high potential end) tool head, which is heated to me...

AI Technical Summary

Problems solved by technology

[0003] These technologies typically have monochrome or bicolor capabilities, but lack the ability to represent the full gamut of colors in a color space (e.g. in terms of mechanical components)

Also, none of the conventional techniques can determine exactly which color to produce because they cannot translate the full color model into machine instructions that produce the full color gamut on the device

Limitations imposed by such conventional techniques, including but not limited to those mentioned above, hinder the fabrication of full-color 3D objects

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