TWiT Throwback (Video)

Know How... 224: Deodorizer and Swamp Cooler

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How to build your own deodorizer, and stay cool without spending a lot of money.

Odor Eater 1

Project Overview

Using off-the-shelf parts along with a 3D-printed frame and some soldering skill, we're going to create an inexpensive air filtration system that can also remove foul odors from an enclosed area.

Parts List

  1. Carbon Filter
    • iPower GLFILT4M Air Carbon Filter and Odor Control ~$40
      • I like this unit b/c it's inexpensive, 4" (easier to print for), and reversible
      • Whichever unit you choose, make sure it has a 4" outlet and comes with a pre-filter
      • 120mm Fans x 2
        • I went for a 5-pack of Artic F12 ~$20
        • You want something with a CFM of 60 or better
        • M3 Bolts + Nuts
        • Aluminum Duct Tape (Optional) ~$20
        • The 3D Printed Parts (Adapter + Duct)
        • 12v Power supply

          • Tools List

          1. 3D Printer
          2. Soldering Kit
          3. JST Power Connectors
          4. Screwdriver
          5. Pliers

            6. Instructions

            1. Using M3 bolts and nuts, mount a 120mm fan to the side of the duct. Make sure that the airflow sucks air through the duct. Insert the bolts so their heads are on the INSIDE of the mount. (i.e the excess bolt length should point AWAY from the main assembly)
            2. Using M3 bolts and nuts, sandwich another 120mm fan between the duct and the adapter. Make sure that the airflow pulls air through the adapter and pushes it up into the duct. Insert the bolts so the excess points down.
            3. Fit the adapter over the mounting flange of the carbon filter
            4. Seal the adapter to the filter with aluminum tape (other tape is acceptable)
            5. Solder the power and ground wires of both fans to a female JST plug. Insulate as necessary.

              6. The 3D Parts for this project can be found at the link: https://dl.dropboxusercontent.com/u/9042212/KH224_OdorEater.zip

              Swamp Cooler

              Parts List

              1. Honeywell TurboForce Fan HT-90 $24.00 -or - 120mm Fan $6.99
              2. Home Depot 5-gal bucket $2.97
              3. 5-gal Bucket Liner $6.00
              4. Flow Vents

                5. Tools List

                1. Marker
                2. Cutting Tool
                3. Glue/Tape

                  4. Process

                  1. Mark a circle around the fan on the bucket lid.
                  2. Mark circles around the outlets
                  3. Use the cutting to cut a slightly smaller circle in the lid
                  4. Use the cutting tool to cut out the outlets
                  5. Insert the foam liner into the bucket
                  6. Use the cutting tool to cut outlet holes into the liner
                  7. Set the foam lid for the liner and close the lid on the plastic bucket
                  8. Use the cutting tool to cut through the foam lid
                  9. Secure fan to plastic lid
                  10. Secure vents to outlets

                    11. Box Fan/Filter

                    Project Overview

                    Most of us have hung a fan on a window to get circulation. Why not add a filter so that you're not blowing in the debris, pollen and soot from outside? This is a SUPER simple, inexpensive way to breathe air that is just a LITTLE bit better for you.

                    Parts:

                    1. Box Fan (Lasko B20401 20") ~$20
                    2. Box Fan Filter (Fan Buddy 2-" Washable Air Filter) ~$30

                      3. Optional Parts:

                      1. Eyelets x 2
                      2. Nut + Washer (x4)
                      3. Bungie Cords

                        4. Tools:

                        1. Power Drill
                        2. Pliers
                        3. Loktite Blue

                          4. These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/224

                          Hosts: Fr. Robert Ballecer, SJ and Bryan Burnett

                          Sponsors:

                          • ifixit.com/twit enter code KNOWHOW
                          • BLUEAPRON.COM/TWIT

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