3D Inkjet Slice Data Adjustment for Color Landing Deviation
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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 actual ejection position may differ from the intended design position, affecting the color tint and overall appearance.
Innovation Solution
A shaping method that generates slice data with adjusted plate division cross-section data to manage the ejection positions of materials, allowing for changes in the range and position of material ejection, density, and timing to minimize the impact of landing position deviations, using multiple ejection heads for different colors, and incorporating clear ink for compensation and blending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If material is discharged by inkjet method using inkjet head, then shaping can be performed with layered method, but landing position deviation occurs causing quality deterioration
Solution Approach 1:
The patent applies preliminary action by pre-calculating and adjusting the ejection positions in the slice data before actual shaping. The control device modifies plate division cross-section data to compensate for expected landing position deviations, so that even when materials land slightly off-target, the final three-dimensional object achieves the desired color and shape accuracy.
2Adaptability or versatility
If multiple ejection heads are used for different colors, then color variety is improved, but landing position deviation affects color tint consistency
Solution Approach 1:
The patent applies local quality by adjusting ejection parameters specifically for coloring materials differently from shaping materials. The control device modifies plate division cross-section data to change ejection positions, density, and timing specifically for color layers, allowing each color to be optimized independently while maintaining overall color consistency despite landing deviations.
3Manufacturing precision
If ejection position is adjusted to compensate for deviation, then color accuracy improves, but ejection timing and density control become more complex
Solution Approach 1:
The patent applies feedback by using detected landing position information to automatically adjust ejection parameters. The control device receives feedback on actual material landing positions and uses this information to modify plate division cross-section data, creating a closed-loop system that continuously optimizes color accuracy without requiring complex manual intervention.
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, ensuring high-quality three-dimensional objects with consistent color appearance by adjusting the ejection parameters and blending techniques, thereby maintaining color accuracy and surface quality.
Implementation Method 1
in the case of discharging a material for shaping by an inkjet method using an inkjet head
Data Source
AI summary
Disclosed is a shaping system 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.