[Jewelry making - Article 01367] - Re: [Orchid] Small studio exhaust system

[Marty]

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    I got a galvanized bucket, cut a 4" round hole in the bottom, screwed
    on a cheap aluminum fitting that in turn receives a section of
    flexible hose such as is used in clothes dryers.  About 4 feet in my
    case - but whatever you need. The hose is attached with a simple
    clamp.   Then  I cut a section of the rim and side of the bucket so,
    with the bucket upside down it looks like there is a generous door in
    its side. - That is about 7 inches wide and about 8 inches high.
    Fold the edges back so there are no sharp edges. Then above the
    workbench I cut a hole in the shop wall big enough for the
    through-wall vent - same one used to exhausr clothes dryers - cheap!
    Then the fan - which is a cooling fan from a computer - usually cheap
    and easy to get - computer repair guys may give 'em too you for
    nothing. The run on 12 volt DC - so you get an adapter that plugs
    into the wall socket and puts out 12 volt dc current which you hook
    to the motor leads, Insert a swith that you can use to turn motor on
    and off. Where do you put the motor? Right inside the dryer vent just
    before it exits the wall. That way the waste heat fromyour soldering
    has a few feet of travel up the exhaust hose to cool off before it
    hits the fan. The fans are just the right size to fit in the dryer
    vent, sometimes their plastic housing has to be clipped off to fit.
    Use duct tape where needed. 

    A screw or two into the plastic fan housing holds the fan in place.
    Runs quietly. The bucket sits on the bench over the soldering surface
    and can be hoisted up out of the way to a hook on the ceiling over
    the bench when not in use.  The whole thing is cheap and easy and
    quiet. Works GREAT> I've got one over my soldering area and one over
    my pickle pot. Just be careful to use non-inflammable dryer vent
    hose. 

Marty in loverly Victoria.

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