Andrew Panasyuk Mechatronics Engineer
Cloud RO
Eleven LLC, 2020-2022
I was the lead engineer throughout the engineering development process of the Cloud Reverse Osmosis under-sink filter system from concept stage to T1 injection mold tooling.
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Cloud RO is an under-sink water filter that provides excellent quality drinking water at your sink. Three filter stages remove impurities including heavy metals, dissolved solids, sediments, and more from inlet water, and a remineralization stage adds a healthy concentration of minerals back into dispensed water.
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Cloud RO improves upon existing under-sink RO solutions in several ways: a significantly easier filter replacement procedure, a faster refill rate, water quality monitoring and reporting, filter life monitoring, and more.
Cloud installed under a sink.
Several complete units undergoing testing.
Interacting with a molded T1 sample at the factory.
Highlight 1 - From Concept to Tooling
My responsibilities on this project included:
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Competitor research
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Defining system requirements
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Component testing and validation
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Proof-of-concept prototyping, including electrical and firmware
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Vendor and CM communication
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Client communication
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CAD (SOLIDWORKS)
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Collaboration with the Eleven Industrial Design team
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Collaboration with an electrical engineering and firmware team
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Prototype system testing and validation
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DFM / DFA for high volume manufacturing
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Part numbering scheme design and implementation
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Complete engineering drawing package, including template design
Highlight 2 - Proof of Concept Prototype
I built a proof-of-concept test stand to evaluate components and inform system design.
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I used the test stand to prototype the system electronics with Arduinos. A system-side Arduino reads water quality sensors, communicates over Bluetooth with a "device" Arduino, writes data to an SD card, and enters low-power sleep as appropriate to conserve battery power.
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Cloud needs to operate with very high power efficiency to converse battery life for several years. I implemented a state-based firmware using timer interrupts to spend on-time as efficiently as possible.
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I collected, analyzed, and presented experimental data using this prototype to inform several critical design decisions, including the storage tank size, sensor selection, battery capacity, and more.
Vertical system test stand.
Highlight 3 - Documentation
Cloud is currently in production and being delivered to customers!
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An important part of preparing for production is creating engineering documentation to define the product. I created a part numbering scheme, organizer, and engineering drawings for the T1 tooling unit.
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Example assembly drawing
Flow schematic developed during prototyping phase
Excerpt of experimental testing