3D Printing Material Volume Adjustment for Waste Reduction
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Solution Overview
Problem
Conventional 3D printing systems face inefficiency when generating small objects, as they require a large quantity of build material, leading to excess unsolidified material and increased costs due to the extensive use of build material, even when only a small portion of the build chamber is utilized.
Innovation Solution
A 3D printing system with a build material preparation module that adjusts the volume and dimensions of build material on the support to match the specific needs of the object, allowing for efficient use of material by forming layers with precise dimensions and reducing waste, even when only a portion of the build chamber is used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a large volume of build material is provided on the build material support to ensure complete coverage, then the build platform can be fully utilized, but excess build material remains unsolidified and is wasted when only small objects are printed
Solution Approach 1:
The build material preparation module dynamically adjusts the volume and dimensions of build material provided on the build material support based on the actual printing requirements. The controller receives build volume information and automatically modifies the amount of material dispensed, transitioning the system from a static fixed-volume approach to a dynamic adaptive approach that matches material quantity to object size.
Solution Approach 2:
The system changes the parameter of build material volume from a fixed constant to a variable parameter that is adjusted according to the build volume requirements. By modifying the volume parameter of build material based on the received build volume information, the system optimizes material usage without requiring physical changes to the build chamber or printing process.
2Productivity
If the build material preparation module adjusts the volume of build material to match the build volume, then material efficiency improves, but the device complexity increases
Solution Approach 1:
The build material preparation module is designed to perform multiple functions: it dispenses build material, adjusts material volume based on build requirements, and integrates with the controller to receive and process build volume information. This multi-functional design consolidates what could be separate complex systems into a single versatile module, improving material efficiency without proportionally increasing overall device complexity.
Data Source
AI summary
According to one aspect, there is provided a method of forming a layer of build material on a build platform of a three-dimensional printing system. The method comprises obtaining characteristics of a build volume to be processed, determining characteristics of a volume of build material to be used to form the layer, forming an intermediate volume of build material having the determined characteristics, and spreading the intermediate volume of build material over the build platform to form the layer.