3D Printing Discharge Control via Speed Adjustment
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Solution Overview
Problem
Existing three-dimensional shaped article manufacturing methods face challenges in accurately controlling the discharge start and stop of shaping materials due to discrepancies between the control time required for the flow rate adjustment mechanism and the moving time of the nozzle, leading to potential inaccuracies in shaping.
Innovation Solution
A method that generates intermediate data including the route and moving speed of the discharge unit, adjusts the moving speed to ensure the control time is equal to or shorter than the moving time, and uses this data to control the discharge unit for accurate shaping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the flow rate adjustment mechanism is used to control discharge start and stop, then the shaping material discharge can be controlled, but the control time may exceed the moving time causing inaccurate shaping
Solution Approach 1:
The patent applies preliminary action by calculating the control time required for the flow rate adjustment mechanism in advance, comparing it with the moving time of the discharge unit, and pre-adjusting the moving speed or control timing to ensure synchronization. This prevents the control time from exceeding the moving time during actual operation, thereby maintaining shaping accuracy.
2Productivity
If the moving speed of the discharge unit is increased to improve productivity, then more material can be deposited per unit time, but the control time required for flow rate adjustment increases relative to moving time
Solution Approach 1:
The patent applies dynamics by making the moving speed of the discharge unit variable rather than constant. The control unit dynamically adjusts the moving speed based on the calculated control time of the flow rate adjustment mechanism, ensuring that the ratio between control time and moving time remains within acceptable limits even when productivity requirements change.
3Manufacturing precision
If the control time for flow rate adjustment is reduced to match moving time, then discharge control accuracy improves, but the complexity of coordinating control parameters increases
Solution Approach 1:
The patent applies feedback by implementing a control unit that continuously monitors and calculates the control time of the flow rate adjustment mechanism, compares it with the moving time of the discharge unit, and automatically adjusts control parameters accordingly. This closed-loop feedback system simplifies the coordination complexity by providing automated real-time adjustment rather than requiring manual pre-coordination of all parameters.
Data Source
AI summary
A three-dimensional shaped article manufacturing method by using a flow rate adjustment mechanism to control a discharge start and a discharge stop of a shaping material discharged from a discharge unit and stacking the shaping material includes generating intermediate data including a partial route that is a route along which the discharge unit moves while continuously discharging the shaping material, and a moving speed of the discharge unit on the partial route, generating shaping data based on the intermediate data, and controlling the discharge unit according to the shaping data and shaping the three-dimensional shaped article. The moving speed is changed such that a control time required to control the flow rate adjustment mechanism on the partial route is equal to or shorter than a moving time for the discharge unit to move along the partial route when the control time is longer than the moving time.