HEPA Air Filter Scrubber Tower

cults3d

It appears you've provided a detailed guide for building an air purifier using various components, including Roomba 800 & 900 series AeroForce compatible filters, activated charcoal pellets, desiccant granules, fine nylon mesh, M3 screws and nuts, connectors, cable zip ties, double-faced tape, and more. Here's a breakdown of the steps: ### Materials Needed - Roomba 800 & 900 Series AeroForce Compatible Filters - Activated Charcoal Pellets - Desiccant Granules (1 Quart Orange Premium) - Fine Nylon Mesh ("Tights" Material or similar) - M3 x 16 Socket Head Cap Screws (10) - M3 Lock Nuts (10) - Connectors for a 12V Supply - Cable Zip Ties - Double-Faced Tape - Two Straight Pins and Scrap M3 Screw for the Backflow Preventer Valve ### Assembly Instructions 1. **Attach Left Stand to Right Stand**: Slide filament into mating sections at corners. 2. **Attach Fan**: Sandwich upstream side between Charcoal-to-Fan adapter and Stand using 4 M3 screws/nuts. The Stand will contact 3 of the screws. 3. **Attach Controller Top**: Sandwich downstream side of fan between Controller Top and Nozzle using 4 M3 screws/nuts. Choose nozzle orientation to avoid exhaust on print bed, and orient the controller top so the knob is away from the stand. 4. **Assemble Controller**: - Place the controller PCB in its slots. - Attach fan wiring and a long 12V supply cable to the PCB terminal. - Insert the control knob through the knob opening. 5. **Attach Controller Bottom**: Use 2 M3 screws/nuts, route wires through the bottom opening. 6. **Route Supply Cable**: Use zip ties along the edge of the stand. 7. **Calibrate Flapper and Mate with Exhaust Tube**: - Follow instructions from https://www.thingiverse.com/thing:2769856. 8. **Assemble Charcoal Chambers and HEPA Filters**: - Place nylon sheer mesh over charcoal chamber threads, fill with activated charcoal pellets up to half depth. - Trim excess mesh along the circumference of each layer. - Cover the top-most layer with desiccant granules and insert HEPA filters into openings on the HEPA Chamber Bottom. 9. **Complete Assembly**: - Place completed assembly within the enclosure. - Attach straight section of exhaust to the Exhaust Tube. - Slide right side cover panel over the end of the exhaust. - Use double-faced tape to attach panels to the enclosure wall. 10. **Power Supply**: Attach 12V supply cable from the base of the stand to a 12V source. ### Video Reference - The video at https://www.youtube.com/watch?v=FSXe7_GZbmo provides an additional visual guide to the assembly process, which might be helpful for clarity or troubleshooting.