Dual Planarizer Vacuum Debris Collection for 3D Printing
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Solution Overview
Problem
In three-dimensional printing systems, contamination on precision rails and motor housing due to errant material drips and airborne contaminants disrupts the accuracy and reliability of object placement and movement, affecting the quality of printed objects.
Innovation Solution
A three-dimensional printing system incorporating a dual-planarizer mechanism with adjustable vertical positions and vacuum chambers to efficiently collect and remove material debris, ensuring precise object formation by positioning planarizers at specific distances from the platform and utilizing vacuum sources to pull debris from the chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single planarizer is used to remove material from the printed object, then the structure is simple, but debris is not effectively collected and contaminates the precision rails and motor housing
Solution Approach 1:
The single planarizer is divided into two separate planarizers positioned at different vertical heights. The first planarizer removes material from the upper portion of the object while the second planarizer removes material from the lower portion. This segmentation allows debris to be collected at different stages and prevents contamination of precision rails and motor housing, thereby improving reliability without excessive complexity increase.
Solution Approach 2:
The solution introduces a vertical dimension to the planarizer arrangement by positioning the two planarizers at different heights above the platform. This vertical stacking creates multiple collection zones for debris, allowing the system to capture contaminants at different elevation levels before they can settle on precision rails and motor housing, effectively solving the contamination problem through spatial dimensionality.
2Reliability
If planarizers are positioned close to the platform for effective debris collection, then debris collection efficiency improves, but the risk of contaminating precision rails increases
Solution Approach 1:
By segmenting the planarizer into two units at different vertical positions, the system creates distinct debris collection zones. The first planarizer collects debris from upper material removal operations while the second collects from lower operations, preventing debris from traveling to precision rails and motor housing, thus maintaining both collection efficiency and cleanliness.
Solution Approach 2:
The two planarizers act as intermediary collection points between the material ejection source and the precision rails/motor housing. They intercept and collect debris in mid-flight or during the planarizing process, preventing direct contamination of the precision components while maintaining effective debris removal capability.
3Reliability
If multiple planarizers are used at different vertical positions, then debris collection effectiveness improves, but the device complexity increases
Solution Approach 1:
The two planarizers are merged into a coordinated system where both units operate simultaneously or sequentially under unified control. They work together as an integrated debris collection system, with the first planarizer handling upper portion debris and the second handling lower portion debris, achieving effective multi-level collection without proportionally increasing overall system complexity.
Solution Approach 2:
The system utilizes the vertical dimension to arrange planarizers at different heights, creating a three-dimensional debris collection network. This vertical arrangement allows effective debris capture from multiple elevation levels while maintaining a compact footprint, thereby improving collection effectiveness without linearly increasing horizontal space requirements or overall system complexity.
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
The system effectively improves the collection of materials and debris, maintaining precise motion and quality of printed objects by minimizing contamination on precision rails and motor housing, enhancing the reliability and accuracy of the printing process.
Implementation Method 1
The vacuum source is configured to create a vacuum in the chamber to pull material removed by the planarizer from the chamber
Data Source
AI summary
A three-dimensional object printing system improves the collection of waste materials during object printing. The printing system includes an ejector head configured to eject material, a platform configured to move in a process direction to a position opposite the ejector head to enable the ejector head to eject material onto the platform, and first and second planarizers configured to remove a first portion and a second portion, respectively, of the material ejected onto the platform. The printing system further includes a first housing defining a first chamber in which at least one of the first planarizer and the second planarizer is positioned, and a first vacuum source connected to the first housing, the first vacuum source being configured to produce a first vacuum in the first chamber to pull material removed by the at least one of the first planarizer and the second planarizer from the first chamber.