Pulsed Gas Flow Aspiration for 3D Printing Build Material Removal
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Solution Overview
Problem
In 3D printing, existing methods for removing un-solidified build material from solidified objects are inefficient, leading to prolonged processing times and difficulties in accessing the finished objects.
Innovation Solution
A system utilizing pulsed gas flow through a conduit to aspirate and transport un-solidified build material from a container, inducing turbulent airflow to entrain and remove the material more effectively, with a controller managing the gas flow to optimize removal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods are used to remove un-solidified build material, then the removal process is simple, but the processing time is prolonged and access to finished objects is difficult
Solution Approach 1:
The patent employs pneumatic principles by using gas flow through a conduit to transport un-solidified build material from the build chamber. The system utilizes pressure differentials created by gas flow to entrain and remove loose material efficiently, replacing manual or mechanical removal methods with a pneumatic extraction system that significantly reduces processing time.
Solution Approach 2:
The system implements periodic gas flow pulses through the conduit to intermittently transport build material. This pulsed action allows for controlled removal cycles that efficiently clear material while minimizing processing time, creating a rhythmic extraction pattern that optimizes both speed and effectiveness of material removal.
2Productivity
If gas flow is induced through the conduit, then build material is transported more efficiently, but the system complexity increases
Solution Approach 1:
The patent introduces a conduit as an intermediary component that facilitates the transport of un-solidified build material. This intermediary structure provides a dedicated pathway for material removal, simplifying the overall system architecture while enabling efficient extraction. The conduit acts as a mediator between the build chamber and the extraction point, organizing the removal process without requiring complex mechanical systems.
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 method significantly reduces the time required to remove un-solidified build material, allowing faster access to solidified objects by creating a more efficient and automated process for de-caking and material extraction.
Implementation Method 1
inducing turbulent airflow to entrain and remove the material more effectively
Implementation Method 2
pulses of gas flow may be induced in a conduit to remove build material from a container, wherein the pulses of gas flow entrain build material in the container
Data Source
AI summary
An example method to remove build material from a container is described. In that example a pulsed gas flow may be induced in a conduit to aspirate build material in pulses from the container.