Extendable 3D Printer for Crevasse Repair in Confined Spaces
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Solution Overview
Problem
Current 3D printing technologies are inadequate for repairing crevasses or narrow cracks in complex areas, often requiring complete dismantling or replacement of parts, leading to increased downtime and costs.
Innovation Solution
A self-propelled 3D printer capable of elongating and contracting to traverse narrow passages, equipped with adhesion devices and a material delivery system, allowing it to navigate and print within confined spaces by expanding and contracting its body and disengaging adhesion devices as necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional 3D printer is used to repair crevasses or narrow cracks, then the repair function is provided, but the printer cannot access confined spaces requiring part dismantling
Solution Approach 1:
The 3D printer is divided into multiple segments including a front section, rear section, and intermediate sections that can move relative to each other. This segmentation allows the printer to change its overall length and configuration to access narrow crevasses while maintaining the necessary printing functionality.
Solution Approach 2:
The printer incorporates movable joints and adjustable sections that enable dynamic reconfiguration of the printer's body. The intermediate sections can extend or retract, and the overall structure can adapt its shape to navigate complex geometries and confined spaces.
2Length of moving object
If the 3D printer body is extended to reach deeper into crevasses, then the printing depth is improved, but the adhesion to walls deteriorates
Solution Approach 1:
The adhesion devices are distributed across multiple sections of the printer body, including front, rear, and intermediate sections. This segmentation allows different parts of the printer to maintain independent adhesion to walls during extension and contraction operations.
Solution Approach 2:
The adhesion devices operate in periodic cycles of engagement and disengagement coordinated with the extension and contraction of the printer body. During extension, rear adhesion devices disengage while front devices engage, and vice versa during contraction, maintaining continuous wall attachment.
3Speed
If the 3D printer contracts to move through narrow passages, then the mobility is improved, but the material delivery capability deteriorates
Solution Approach 1:
The material delivery system is nested within the printer body structure, with material storage and delivery mechanisms integrated into the movable sections. This nesting allows the material system to be compact during contraction for mobility while still providing adequate material capacity.
Solution Approach 2:
The material delivery system is designed to be dynamically adjustable, with material flow control mechanisms that can operate effectively whether the printer is in extended or contracted configuration. The material delivery capability adapts to the current body length.
4Stability of the object's composition
If adhesion devices are engaged to maintain wall attachment, then the stability is improved, but the ability to extend and contract deteriorates
Solution Approach 1:
The adhesion system is segmented into multiple independently controllable units distributed along the printer body. This allows selective engagement and disengagement of different adhesion devices during extension and contraction operations, maintaining stability while enabling shape change.
Solution Approach 2:
Adhesion devices operate in coordinated periodic cycles where groups of devices are engaged and disengaged in sequence during extension and contraction. This periodic operation maintains wall attachment stability while allowing the body to change shape and length.
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
Enables efficient repair of crevasses without the need for part dismantling, reducing downtime and costs by allowing the printer to adapt to narrow passages and deliver material effectively within confined spaces.
Implementation Method 1
engaging one or more rear adhesion devices of a crevasse 3D printer
Data Source
AI summary
A 3D printing system comprising, an extendable body, a material delivery system, a first wall adhesion device, and a second wall adhesion device.