Decentralized water infrastructure is fundamentally broken. When a community relies on imported membranes, replacement chemical filters, or electrical pumps, the lifecycle of that technology is doomed to fail. When it breaks, the system is abandoned.

The Autogenous Capillary-Plasma System (ACPS) represents a total shift in philosophy: we are replacing mechanical complexity with fundamental physics. By utilizing fluid dynamics, structural color, acoustics, and non-thermal plasma, we have designed a hospital-grade sterilization platform that costs under $10.00 USD to produce, uses zero external power, requires no imported consumables, and can be printed locally on a cheap desktop 3D printer.

We have open-sourced the entire blueprint under the CERN Open Hardware Licence (CERN-OHL-S) to integrate with global microloan flywheels like Water.org's WaterCredit. Now, we need the Hackaday community to help us refine and build it.

How the System Works

The ACPS is a municipal-grade water plant compressed into a kitchen-table-sized passive appliance:

[ Dirty Water ] 

       │

       ▼

 [ Acoustophoresis Baffle ] ───(Acoustic separation drops mud & sediment)

       │

       ▼

 [ Bio-Sand Pre-Filter ] ──────(Biological filtration of pathogens)

       │

       ▼

 [ Chitosan Aerogel Core ] ────(Chelates heavy metals; turns red at saturation)

       │

       ▼

 [ Fluidic Accumulator ] ──────(Stores slow gravity drip into massive pressure)

       │

       ▼

 [ Venturi & DBD Plasma ] ─────(Piezoelectric mechanical force ignites plasma arc)

       │

       ▼

 [ Sterilized Water ]

Acoustic Mud Separation: Uses the kinetic energy of poured water to generate acoustic standing waves inside corrugated baffles, separating heavy suspended solids (mud) before they ever hit a filter.

Optical Resonance Chelation Core: A biodegradable, locally synthesized Chitosan-Cellulose aerogel binds heavy metals. Using structural color, the molecular lattice physically swells as it saturates, shifting from white to a highly visible iridescent dark crimson at 85\% saturation—a zero-power optical replacement alarm.

Autogenous Plasma Sterilization: The system collects gravity-fed water over hours in a pressurized accumulator. When triggered, a snap-valve violently fires the pressurized fluid through a Venturi nozzle lined with a piezoelectric quartz matrix. The mechanical compression generates a high-voltage, low-current plasma arc across the fluid stream, instantly shredding viral RNA and industrial pesticides on contact without any battery or grid power.

The Hackaday Call to Action: The Bounties

We are releasing this project with three clear, highly technical engineering bounties. If you have a 3D printer, a background in fluid dynamics, or a passion for materials science, we need your brain:

1. The Firmware Bounty: Klipper Phononic Extrusion Macro

The Challenge: To print the sub-millimeter tolerances required for the internal Venturi nozzle on a cheap desktop FDM printer (like an Ender 3), we need to prevent layer delamination under high pressure.

The Hack: We want to utilize Phononic-Assisted Extrusion—modulating the stepper motor micro-stepping in the extruder during printing to vibrate the nozzle at 120\text{ Hz} to 150\text{ Hz}. This physically aligns the PETG polymer chains as they transition from liquid to solid.

What we need: Firmware hackers to refine a G-code post-processor or Klipper macro to induce this micro-vibration automatically on critical internal geometries.

2. The Fluid Dynamics Bounty: Baffle Optimization

The Challenge: Refine the phononic geometry of the corrugated pre-filtration baffles.

What we need: CFD (Computational Fluid Dynamics) simulations to optimize the pitch and depth of the baffles so that a passive gravity-pour velocity of 0.5\text{ m/s} successfully generates the necessary acoustic standing wave to separate silica-based sediments.

3. The Materials Bounty: Kitchen-Chemistry Aerogel Validation

The Challenge: Perfecting a cheap, ambient-pressure-dried biopolymer.

What we need: Hackers with a chemistry bent to test our Chitosan-Cellulose synthesis instructions (using crustacean/insect waste and paper pulp) and validate the structural shift and absorption rates under various drying conditions.

Join the Project

This is a completely unencumbered public utility. Nobody owns this, and it is built to be a gift to humanity. Let's solve the water crisis together.

Main Repository & Codebase: https://github.com/liventruth/autogenous-capillary-plasma-system/

License: CERN Open Hardware Licence Version 2 - Strongly Reciprocal (CERN-OHL-S)

Please review our repository files, check out the "Issues" tab for detailed bounty parameters, and fork the project to submit your contributions!