3D Inkjet Slice Data Adjustment for Stable Color Surfaces
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Solution Overview
Problem
In three-dimensional object shaping using layered methods, deviations in the landing position of shaping materials can lead to quality deterioration, particularly in colored surfaces, as the appearance of colors may vary significantly depending on the position, making it challenging to achieve consistent tint and surface quality.
Innovation Solution
A shaping method that generates slice data with adjusted plate division cross-section data to manage the ejection range and position of materials, allowing for controlled changes in the plate division cross-section data to minimize the impact of landing position deviations, ensuring consistent color representation and surface quality by adjusting the ejection range and position based on color separation data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If inkjet method is used to discharge shaping material, then productivity and ease of manufacture are improved, but manufacturing precision deteriorates due to landing position deviation
Solution Approach 1:
The patent applies preliminary action by pre-adjusting the plate division cross-section data to anticipate and compensate for landing position deviations. Before actual shaping, the ejection positions in the data are modified based on predicted deviation patterns, so that when material is ejected, the deviations naturally result in correct final positioning. This proactive data adjustment resolves the contradiction by maintaining inkjet method benefits while achieving required precision.
Solution Approach 2:
The patent implements feedback by measuring actual landing positions, comparing them with intended positions, and using this information to adjust subsequent ejection operations. The system continuously monitors deviation patterns and modifies ejection parameters in real-time, creating a closed-loop control system that maintains manufacturing precision despite inherent inkjet positioning variations.
2Manufacturing precision
If plate division data is adjusted to compensate for landing position deviation, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent uses disposable computational adjustments rather than permanent hardware modifications. Instead of adding complex physical compensation mechanisms to the inkjet system, the solution implements software-based data transformation that is discarded after each shaping operation. The plate division cross-section data is regenerated and adjusted for each job, providing precision compensation without permanent device complexity increases.
3Manufacturing precision
If ejection position is changed to suppress color variation, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The patent replaces mechanical positioning adjustments with computational data transformation. Instead of physically moving components or recalibrating hardware for each precision requirement, the system uses software-based plate division data adjustment to achieve positioning accuracy. This substitution maintains high-speed inkjet operation while achieving precision through intelligent data processing rather than mechanical means.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces the influence of landing position deviations, enabling the creation of high-quality three-dimensional objects with consistent color appearance by dispersing and averaging the impact of deviations across the surface, thus maintaining the desired tint and surface quality.
Implementation Method 1
discharging a material for shaping by an inkjet method using an inkjet head
Data Source
AI summary
Disclosed is a shaping method for shaping a three-dimensional object, which includes a slice data generation step that generates slice data and a shaping execution step that shapes the three-dimensional object by a shaping apparatus based on the slice data. The shaping apparatus shapes the three-dimensional object using inkjet heads. The slice data generation step has a color cross-section data generation step that generates color cross-section data showing at least a cross-sectional shape of the three-dimensional object and a color at each position, a plate division data generation step that generates plate division cross-section data in which the color cross-section data is color-separated for each color of the material, and a plate division cross-section data change step that changes at least some plate division cross-section data. The slice data is generated based on the plate division cross-section data changed in the plate division cross-section data change step.