3D Printing Gap Region Filling via Parameter Adjustment
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Solution Overview
Problem
Existing three-dimensional shaped article production methods face challenges in filling void regions effectively, often resulting in remaining void portions due to inadequate generation of remnant paths depending on the shape of the void region.
Innovation Solution
A method and apparatus that divide gap regions with concave shapes at the outer circumference into simpler forms by adjusting ejection path data and control data to fill these regions with shaping material, ensuring complete filling without adding new paths, thereby reducing voids and enhancing shaping accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a remnant path is added to fill void regions, then porosity is decreased, but the additional remnant path is not well generated depending on the shape of the void region and void portions may remain
Solution Approach 1:
The gap region is divided into multiple divided gap regions based on concave shapes at the outer circumference. This segmentation allows each divided region to be filled independently by adjusting ejection parameters, ensuring complete filling without requiring complex additional remnant paths.
Solution Approach 2:
The invention changes ejection parameters (ejection amount, moving speed) for the ejection section when filling divided gap regions. By dynamically adjusting these parameters, the system can effectively fill complex gap regions without adding new paths, thereby reducing path generation complexity while maintaining filling completeness.
2Manufacturing precision
If the ejection section follows standard partial paths, then the shaping process is simple, but gap regions with concave shapes cannot be properly filled
Solution Approach 1:
The invention applies different ejection parameters specifically for the ejection section when filling divided gap regions, while maintaining standard parameters for other areas. This localized parameter adjustment ensures proper filling of gap regions with concave shapes without complicating the overall shaping process, thereby maintaining productivity.
3Manufacturing precision
If additional paths are generated to fill void regions, then filling completeness improves, but the number of paths increases and processing time extends
Solution Approach 1:
The gap region is divided into divided gap regions based on concave shapes before the ejection process begins. This preliminary division allows the ejection section to efficiently fill each divided region by adjusting parameters, avoiding the need for additional remnant paths and reducing overall processing time while ensuring filling completeness.
Data Source
AI summary
A three-dimensional shaped article production method includes a first step of dividing a gap region that is a gap region sandwiched by multiple partial paths and includes one or multiple concave shapes at an outer circumference based on first data having path data representing a path in which an ejection section moves while ejecting a shaping material by multiple partial paths, and having ejection control data including at least either of ejection amount information representing an ejection amount of the shaping material in each of the partial paths and moving speed information representing a moving speed of the ejection section in each of the partial paths, a second step of generating second data from the first data by changing at least either of the path data and the ejection control data so as to fill up the divided gap region with the shaping material, and a third step of shaping the three-dimensional shaped article by controlling the ejection section according to the second data.