3D Shaping Path Speed Control for Curved-Layer Accuracy
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Solution Overview
Problem
Existing methods for manufacturing three-dimensional shaped objects do not adequately address the impact of scanning speed on shaping accuracy and time, particularly in curved portions, leading to potential deviations from the intended trajectory and reduced accuracy.
Innovation Solution
A method and system that determine the moving speed of a discharge part in each partial path based on the arrangement of endpoints, and control the discharge of shaping material accordingly to laminate layers, using a control part to manage the scanning speed and material flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the scanning speed is made lower, then the shaping accuracy is improved, but the shaping time is increased
Solution Approach 1:
The patent applies dynamics by making the scanning speed variable rather than constant. The control part dynamically adjusts the moving speed of the discharge part based on the curvature radius calculated from endpoint arrangements. In curved portions, the speed is reduced to maintain accuracy, while in straight portions, the speed is increased to reduce overall shaping time. This dynamic speed adjustment resolves the contradiction between shaping accuracy and shaping time.
Solution Approach 2:
The patent changes the parameter of scanning speed based on the geometric parameters of the path (curvature radius). By calculating the curvature radius from endpoint arrangements and using it to determine appropriate speed values, the system optimizes the balance between accuracy and efficiency. Different speed parameters are applied to different sections of the path based on their geometric characteristics.
2Productivity
If the scanning speed is too high in curved portions, then the shaping time is reduced, but the discharge part deviates from the assumed trajectory and shaping accuracy decreases
Solution Approach 1:
The system dynamically adjusts scanning speed based on real-time calculation of curvature radius from endpoint arrangements. In curved portions, the speed is automatically reduced to prevent trajectory deviation, while maintaining higher speeds in straight portions. This dynamic adaptation ensures the discharge part follows the assumed trajectory accurately without unnecessarily increasing overall shaping time.
Solution Approach 2:
The patent performs preliminary calculation of curvature radius and determination of appropriate scanning speeds before actual shaping. The control part calculates the arrangement of endpoints and determines optimal speed values in advance, allowing the discharge part to follow the trajectory accurately from the start without trial-and-error adjustments during the shaping process.
Data Source
AI summary
A method of manufacturing a three-dimensional shaped object includes a first process of determining a moving speed of a discharge part in each of a plurality of partial paths based on an arrangement of endpoints representing a start point and an end point of the plurality of partial paths, the arrangement of the endpoints being included in path information in which a movement path in which the discharge part moves while discharging a shaping material toward a stage is indicated by the plurality of partial paths, and a second process of discharging the shaping material from the discharge part while moving the discharge part at the determined moving speed to laminate layers.