Removable 3D Printer Cassette for Layer Fusing Efficiency
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Solution Overview
Problem
Traditional 3D printing processes heat and fuse each layer as it is printed, which can reduce efficiency and uniformity of material properties, and often require continuous energy application during the printing process.
Innovation Solution
A removable cassette system where layers of build material are digitally printed with a liquid functional material that outlines the object, then fused simultaneously in a furnace, eliminating the need for continuous heating during printing and allowing for improved efficiency and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If layers are heated and fused continuously during the printing process, then each layer is bonded as it is printed, but energy consumption increases and material property uniformity decreases
Solution Approach 1:
The patent applies preliminary action by depositing all liquid functional material layers first without fusing them, then performing a single fusing operation after all layers are in place. This allows the structure to be fully formed before applying heat, reducing total energy consumption while ensuring proper layer bonding.
Solution Approach 2:
The patent segments the fusing process from the layer deposition process. Instead of continuous heating during printing, the fusing operation is separated and performed as a distinct subsequent step, allowing independent optimization of both deposition and fusing parameters.
2Reliability
If layers are heated and fused continuously during the printing process, then each layer is bonded as it is printed, but material property uniformity decreases
Solution Approach 1:
By completing all layer depositions before fusing, the patent ensures that the entire structure experiences uniform thermal treatment. This preliminary deposition phase allows consistent material placement throughout, and the subsequent single fusing step ensures uniform material properties across all layers.
Solution Approach 2:
The patent merges all fusing operations into a single consolidated step rather than performing separate fusing operations between each layer. This merging of the fusing process ensures uniform thermal exposure and consistent material properties throughout the entire structure.
3Reliability
If continuous heating is applied during printing, then layers are fused in real-time, but printing efficiency decreases
Solution Approach 1:
The patent performs preliminary deposition of all layers without interruption, then executes fusing as a final step. This eliminates the need to pause printing for heating operations between layers, significantly improving printing efficiency while still achieving complete layer fusion.
Solution Approach 2:
The patent segments the manufacturing process into distinct deposition and fusing phases. This segmentation allows the deposition phase to proceed continuously at high speed without thermal interruptions, maximizing productivity while the separate fusing phase ensures complete layer bonding.
4Use of energy by moving object
If layers are not fused after each printing pass, then energy consumption is reduced, but layer stability during handling may be compromised
Solution Approach 1:
The patent performs preliminary deposition of all layers with liquid functional material, creating a stable layered structure before fusing. The liquid functional material provides initial layer definition and stability during handling, while the subsequent fusing step permanently bonds all layers together.
Solution Approach 2:
The liquid functional material acts as an intermediary that provides temporary structural definition and stability during the deposition phase. This intermediary material allows layers to be handled and positioned before the final fusing operation permanently bonds them.
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 enhances the efficiency and uniformity of the 3D printing process by fusing layers in a single step outside the printer, reducing energy consumption and improving material properties without compromising the structure's integrity.
Implementation Method 1
portions of each layer may be digitally printed with a liquid functional material within the removable cassette
Implementation Method 2
The furnace provides heat or energy that fuses the portions of the build material that received the liquid functional material
Data Source
AI summary
In example implementations, an apparatus includes a housing, a movable base, a tab portion and a coupling mechanism. The housing is comprised of a microwave transparent material. The movable base is coupled to the housing to receive build material that is digitally printed. The tab portion is coupled to a bottom portion of at least one wall of the housing. The tab portion stops the movable base. The coupling mechanism is coupled to the housing to removably attach the apparatus to a three dimensional printer.