3D Print Data Division Aligning Joints with Image Features
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Solution Overview
Problem
Existing methods for manufacturing three-dimensional models using different materials struggle to create inconspicuous joints when dividing shapes that exceed the maximum size of shaping apparatuses, especially when various shapes are involved, leading to conspicuous division lines during reassembly.
Innovation Solution
A print data division apparatus that detects features in three-dimensional image data using pixel information, divides the data into designated print sizes based on these features, and creates three-dimensional shape data for division printing, ensuring that joints become less conspicuous by aligning division lines with color or luminance differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If three-dimensional image data is divided into multiple parts for printing, then the model can be manufactured using apparatuses with limited shapeable size, but conspicuous division lines appear at the joints after joining
Solution Approach 1:
The patent divides three-dimensional image data into multiple regions that can be processed separately by apparatuses with limited shapeable size. The segmentation is performed by detecting features in the three-dimensional image data and creating division lines that align with these features, allowing each segment to be manufactured independently and then joined together.
Solution Approach 2:
The patent applies different division strategies to different regions of the three-dimensional image data based on local features. By detecting features such as color transitions, luminance changes, or geometric characteristics at specific locations, the division lines are placed optimally in each local region to minimize the visibility of joints after assembly.
2Ease of manufacture
If division is performed by the shapeable size of the shaping apparatus, then the model can be manufactured within apparatus constraints, but preset linear division lines create conspicuous joints
Solution Approach 1:
Instead of applying a uniform linear division approach, the patent detects local features in the three-dimensional image data and creates division lines that adapt to the specific characteristics of each region. This allows division lines to follow natural transitions in the data, making them less conspicuous after joining.
Solution Approach 2:
The patent performs feature detection and optimal division line determination before the actual manufacturing process. By analyzing the three-dimensional image data in advance and identifying the best division locations based on feature boundaries, the system prepares division plans that minimize joint visibility before any physical manufacturing or joining operations occur.
Data Source
AI summary
A print division apparatus of this invention includes a feature detection unit configured to detect a feature of three-dimensional image data based on pixel information included in the three-dimensional image data, a division unit configured to divide the three-dimensional image data into a designated print size in accordance with a boundary of the feature detected based on the feature of the three-dimensional image data, and a creation unit configured to create three-dimensional shape data for the divided three-dimensional image data.