This diy fume extractor will be a showpiece for your workbench

We have no idea how well this diy fume extractor works, but it sure does look great! We’ve been thinking that it’s time to stop trying to blow away the solder fumes while working on project and this might be just the kind of motivation we need. The 6″ cube doesn’t get in the way of your work, and since it includes a carbon filter it should keep the smell of burning flux to a minimum.

[Jeff's] project basically brings together a 120mm PC cooling fan with a power source. The fan mounts inside of a steel enclosure he picked up from Digikey. The face plates that come with it were modified to accept the fan, as well as the grill hardware that goes with it. Before assembling he painted the box with some Rustoleum “Hammered” black spray paint. This gives it a texture that will hide any imperfections in your application.

We’re a bit hazy on how this is being powered. It sounds like he’s plugging the cord into mains but we don’t see any type of regulator to feed what must be a 12V DC fan. There are build instruction available but they didn’t clear up our confusion.

Comments

  1. Hashiriya says:

    The link says it’s an AC powered fan. You should be able to get something similar at a surplus store or the like.

  2. Wireb says:

    From the build article the fan is a 120Vac unit so no regulator needed.

  3. rasz says:

    I just use PC fan connected to old cellphone charger (~9V)

  4. 110v AC powered fans at 120mm are common. I use two in my solid state amplifier design.

  5. Bogdan says:

    I built mine similar: i used an old computer PSU case and its fan powered at maybe 15V to get more power.
    Cheap and good enough.

    • Marsupial says:

      Also did something similar, with an AC 110V fan and the case of an old computer PSU. Should add some filters, but at least the fumes are directed away from my nose and the cose was nothing but reused parts.

  6. Coda says:

    …but I love the smell of burning flux…

  7. MrX says:

    This is a fumes filter, not an extractor. To extract the fumes you actually need to redirect the fumes somewhere else.

  8. flink says:

    But I _like_ the smell of burning flux!

  9. Derf says:

    You can find 120v ac fans this size even at Radio Shack. I needed a quick way to cool an amp, and was able to get a fan just like the one shown for cheap, in town no less.

  10. tmuikku says:

    Wow, ain’t that lethal! never ever plug anything straight to power outlet! always use fuse and transformer. What if the fan goes short? the house is on fire… duh

    • AussieTech says:

      No, these older generation (like me) mains fans were “impedance protected”; even stalled they don’t draw excessive current. Electrical failure must happen but I’ve replaced many of these for shot bearings and never seen an electrical failure. It is marginally more likely that an isolation transformer would itself short to ground, but that’s pretty rare too.

      If the metal case is grounded, as it should be, the mains circuit protection will pop. Most household appliances don’t have fuses, and even heating devices only have thermal fuses. A cable gland entry is a wise idea however.

  11. Esker says:

    This thing NEEDS a fuse added, and also a proper cable gland instead of just tying a knot in the mains flex.

    Horrible design philosophy there, regardless of how “pretty” it may be.

    • pcf11 says:

      A knot is fine. I’ve seen UL listed products with knots to restrain cords. Why does it need a fuse? Where you plug it in will be fused enough. Well, it should be. A device fuse only protects the device from damage, if something happens to this device you’ll be out a fan anyways.

      The really big question is why does anyone need a flux fume extractor? I’ve been overcome by flux and it doesn’t happen off the end of a little soldering iron. Just like no one ever died of smoke inhalation off burning one incense.

  12. nitz says:

    done well job

  13. MobileWill says:

    This is a great build. Much better than what I did.

    http://www.mobilewill.us/2012/08/diy-fume-extractor.html

    I might have to rebuild mine.

  14. jim walker says:

    Don’t take fumes lightly. I have Parkinson’s disease and it isn’t funny. There is research which attributes the disease to heavy metals and who knows what fumes,
    .. JIM

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 96,478 other followers