Metamer Set Processing for Multi-Property 3D Printing
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Solution Overview
Problem
Current printing technologies face challenges in managing multiple material properties, particularly when trying to achieve specific combinations of properties like color, opacity, rigidity, flexibility, conductivity, and magnetism in 2D and 3D printing, as existing methods are not well-suited for simultaneous variation of these properties, leading to conflicts and making it difficult to determine the appropriate amounts of printing materials needed for each location.
Innovation Solution
The method employs metamer sets to identify combinations of printing material proportions that match specified properties at each location, using techniques like Halftone Area Neugebauer Separation (HANS) to generate control data for printing devices, and incorporates user-defined rules and manual override options to resolve conflicts and ensure the object's fitness for printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional printing methods are used to manage multiple material properties, then the printing process can be performed with existing technology, but the ability to achieve specific combinations of properties (color, opacity, rigidity, flexibility, conductivity, magnetism) is insufficient and conflicts arise
Solution Approach 1:
The patent applies parameter changes by systematically varying the proportions of multiple printing materials (inks, powders, resins, etc.) to achieve different material properties. The system changes parameters such as material composition ratios, particle sizes, and chemical concentrations to control color, opacity, rigidity, flexibility, conductivity, and magnetism properties independently and simultaneously.
Solution Approach 2:
The patent employs composite materials by combining multiple printing materials with different properties in specific proportions. Each printing material contributes different characteristics (e.g., one material provides color while another provides conductivity), and their combination creates composite printing material formulations that achieve the desired property combinations at each location.
2Productivity
If automated determination of printing material amounts is implemented, then productivity and automation are improved, but the complexity of calculating and resolving material property conflicts increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing metamer sets for different material properties before the actual printing process. The system performs advance computations to determine all possible printing material proportion combinations that can achieve desired properties, storing these as lookup tables or databases that can be quickly queried during printing without real-time complex calculations.
Solution Approach 2:
The patent introduces an intermediary computational layer that acts as a mediator between the desired object properties and the actual printing material formulations. This intermediary system (print processor or software module) resolves conflicts between multiple material properties by selecting appropriate combinations from pre-calculated metamer sets, simplifying the overall system architecture while maintaining high automation capability.
3Manufacturing precision
If metamer sets and Halftone Area Neugebauer Separation techniques are used to identify material combinations, then manufacturing precision and property accuracy are improved, but the computational time and processing complexity increase
Solution Approach 1:
The patent performs the computationally intensive metamer set calculations and Halftone Area Neugebauer Separation (HANS) analysis in advance, before the actual printing job is executed. By pre-computing all possible material proportion combinations and their resulting properties, the system creates ready-to-use lookup tables that enable rapid selection during printing without repeating complex calculations, thus maintaining high precision while reducing real-time processing time.
Solution Approach 2:
The patent implements a dynamic approach where the system adapts its computational strategy based on the specific printing requirements. For standard property combinations, pre-calculated metamer sets are used for rapid processing. For custom or complex property specifications, the system dynamically performs additional HANS analysis and metamer calculations, balancing computational effort with the need for precision in each specific case.
Data Source
AI summary
A method for processing an object for printing, the object comprising a plurality of properties defined at each of a plurality of locations within the object, each property represented by a metamer set of possible combinations of proportions of at least one of a set of printing materials, the method comprising: selecting a combination of the metamer sets of a given location within an object that provides all of the plurality of properties defined for the given location.