Voxel Graph Optimization for Additive Manufacturing Stability

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Solution Overview

Problem

Current three-dimensional printing technologies are limited in customizing objects with multiple materials, which restricts creativity and mechanical strength, especially when applying textures that require both full and empty spaces.

Innovation Solution

A device processes voxel data to generate and optimize graph structures for additive manufacturing, using a combination of generators, extractors, stiffeners, and drivers to redefine edges and spaces, ensuring mechanical strength while allowing for aesthetic customization by selecting appropriate projection and transformation pairs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a pattern defining empty and full space is applied to customize three-dimensional printing, then aesthetic possibilities and customization are improved, but mechanical strength becomes complex to ensure

Engineering Contradiction:
ImprovecustomizationVSAvoidmechanical strength
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The patent segments the three-dimensional object into a voxel grid structure, dividing the continuous space into discrete volumetric elements. This segmentation allows independent control of each voxel to define full or empty space, enabling pattern application while maintaining structural integrity through strategic placement of full voxels as load-bearing elements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different properties to different regions of the object by varying the pattern density and voxel distribution locally. Full voxels are concentrated in regions requiring mechanical strength while empty voxels are used in non-critical areas, allowing aesthetic customization without compromising overall structural integrity.

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If a single material is used for printing, then manufacturing simplicity is maintained, but creativity and mechanical strength are greatly limited

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidcreativity
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent creates a composite structure by combining full voxels (solid material) and empty voxels (void space) in specific patterns. This composite approach using a single material type achieves the effect of multiple materials by strategically placing material only where needed for both aesthetic and mechanical purposes.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent employs porous structures by introducing empty voxels within the solid material matrix. This creates a controlled porosity pattern that reduces material usage and weight while maintaining structural strength through the strategic distribution of solid voxels, enabling creative designs without requiring multiple material types.

Inventive Principle:
Principle #31Porous materials

Data Source

PatentUS10751947B2Device for processing data for additive manufacturing
Publication Date: 2020.08.25 INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE
  • US10751947B2 patent drawing
  • US10751947B2 patent drawing
  • US10751947B2 patent drawing

AI summary

An additive manufacturing device processes voxels representing an object to be additively manufactured by determining two graphs depending on whether the voxels indicate full or empty spaces, and redefines some of the voxels indicating an empty space as full spaces in order to ensure mechanical stability.