Modular Manifold for 3D Printing Element Protection
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Solution Overview
Problem
Industrial inkjet printing elements, such as the Q-Series, are vulnerable to corrosion and mechanical shock due to their fragile materials and exposed electronics, and lack effective protection against contamination and leaks in aggressive environments like powder-substrate 3D printing.
Innovation Solution
A modular manifold with a simple geometric shape, preferably made from chemically resistant plastics like polypropylene or PVDF, is designed to protect the printing elements with gaskets, fluid fittings, and electrical connections, allowing for customizable orientations and enhanced protection against contamination and mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If printing elements are made from fragile materials like graphite and glass, then printing precision is improved, but reliability deteriorates due to susceptibility to corrosion and mechanical shock
Solution Approach 1:
The system is divided into a robust housing structure and separate printing element components. The housing contains corrosive environments away from sensitive electronics and materials, while printing elements can be replaced without replacing the entire apparatus. This segmentation allows fragile printing elements to maintain precision while the robust housing ensures reliability.
Solution Approach 2:
A protective housing structure acts as an intermediary between the aggressive printing environment and the fragile printing elements. The housing includes fluid channels and mounting structures that mediate the interaction between corrosive materials and sensitive components, protecting them while maintaining printing precision.
2Ease of manufacture
If electronics and circuit board traces are exposed, then ease of manufacture is improved, but reliability deteriorates due to susceptibility to contamination and corrosion
Solution Approach 1:
Electronics and circuit board traces are nested within the protective housing structure rather than being exposed on the exterior. The housing contains a cavity that accommodates electronic components, protecting them from contamination and corrosion while maintaining ease of manufacture through integrated design.
Solution Approach 2:
The housing structure serves as an intermediary barrier between corrosive printing materials and exposed electronics. It provides sealed fluid channels and protected mounting locations for circuit boards, preventing contamination while maintaining manufacturing simplicity.
3Device complexity
If fluid channels have simple inlet geometries, then device complexity is reduced, but reliability deteriorates due to lack of protection against leaks
Solution Approach 1:
The housing incorporates gaskets and sealed fluid channels that prevent leaks while maintaining simple inlet geometries. The gaskets create flexible seals between the housing and printing elements, preventing contamination without adding complex valve or pump mechanisms.
4Reliability
If printing elements are protected from corrosion and mechanical shock, then reliability is improved, but device complexity increases due to additional protective structures
Solution Approach 1:
Protective functions are merged into the housing structure itself rather than being separate additions. The housing simultaneously provides mechanical protection, corrosion resistance, fluid channeling, and electronic component mounting, improving reliability without proportionally increasing device complexity.
Solution Approach 2:
The housing structure performs multiple functions: it protects fragile printing elements from corrosion and mechanical shock, contains and directs fluid flow through sealed channels, provides mounting structures for electronics, and offers replaceability of printing elements. This multi-functionality improves reliability without adding separate protective systems.
Data Source
Figure 1a~1b
Figure 2~3
Figure 4~5
AI summary
A printing apparatus including a manifold shaped as a rectangular parallelepiped having three pairs of parallel faces and including (i) a body thereof defining a plurality of fluidic channels, (ii) a bottom portion thereof defining a slot configured to accommodate insertion of a printing element; and (iii) at least one face defining a plurality of fluidic connections in fluidic communication with the fluidic channels. A method for manufacturing a printing apparatus includes the steps of a) manufacturing a manifold by manufacturing a parallelepiped and defining a slot therein configured to hold a printing element; b) machining features into the manifold for mechanical mounting, electronic connection, and fluid connection; and (c) assembling the manifold with the printing element and a gasket to form the printing apparatus.