3D Printing Cooling System Thermal Mass Control
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Solution Overview
Problem
Existing three-dimensional printing technologies face challenges in efficiently controlling the cooling process, which can lead to inconsistencies and defects in the printed objects.
Innovation Solution
A method and system for controlling a cooling system in three-dimensional printing, where the thermal mass of each layer is calculated based on the amount and geometrical characteristics of the slice, and the cooling system is activated, deactivated, or set to a specific power level in a closed loop control responsive to the calculated thermal mass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling system is used in three-dimensional printing, then heat evacuation is achieved, but inconsistencies and defects in printed objects occur due to improper cooling control
Solution Approach 1:
The cooling system operates dynamically by adjusting power levels based on real-time thermal mass calculations for each layer. The controller modifies cooling intensity during the printing process rather than using fixed cooling parameters, allowing adaptation to varying thermal conditions of different layers and geometries.
Solution Approach 2:
The system implements a closed-loop control mechanism where the controller receives thermal mass data from the slicer software, processes this information, and adjusts cooling system power accordingly. This feedback loop ensures cooling parameters are continuously optimized based on actual layer characteristics.
2Manufacturing precision
If thermal mass calculation is performed for each layer separately, then precise cooling control is achieved, but computational complexity increases
Solution Approach 1:
The slicer software performs thermal mass calculations for all layers before the printing process begins. This preliminary computation allows the system to prepare a complete cooling control strategy in advance, avoiding real-time computational complexity during actual printing while maintaining precise control.
3Use of energy by moving object
If cooling power is adjusted based on thermal mass, then energy efficiency improves, but control system complexity increases
Solution Approach 1:
The controller uses feedback from pre-calculated thermal mass data to automatically adjust cooling power levels. This feedback mechanism enables energy optimization without requiring complex real-time sensing or control algorithms, as the adjustment basis is prepared in advance by the slicer software.
Solution Approach 2:
The system achieves energy efficiency through automated control based on geometric data from the 3D model. The controller self-adjusts cooling parameters using information already available in the slicing process, eliminating the need for additional sensors or 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 allows for precise control of the cooling process, improving the consistency and quality of the printed objects by optimizing the heat evacuation based on the calculated thermal mass of each layer.
Implementation Method 1
activating, deactivating, or setting a power of a cooling system for cooling the layer
Implementation Method 2
cooling system for cooling the layer
Data Source
AI summary
A method of additive manufacturing, comprises: dispensing from an array of nozzles an amount of building material formulation to form a layer in a configured pattern corresponding to a shape of a slice of an object, and hardening the layer. Based on the amount and a geometrical characteristic of the slice, a thermal mass of the layer is calculated. A cooling system is controlled in a closed loop control responsively to the calculated thermal mass.