[Jewelry making - Article 00259] - Re: [Orchid] Home Made Dust Collector

[Peter W . Rowe]

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>        I'm looking to build a dust collector for my studio and
>     wondering if anyone has any suggestions or specs for something
>     fairly simple. 

    You can build, just from wood if you like, a "hood", or funnel
    shaped air collector that will mount behind the buff.  Fit it with a
    hole to fit the large diameter (2.5 inch I think is common) type hose
    on a decent shop vac.  The closer the fit of the funnel to the back
    of the buff, so air is drawn in from right behind the buff, rather
    than the whole general area,  the better.  many commercial units use
    a rather large hood, and then need a lot of air movement. But if
    your's is sized close to the buffs you use, and fits up close to the
    back, you can get almost all the dust produced.  Mount the funnel so
    it can shift side to side to be centered behind the working area of
    different buffs, which may not all mount on the motor in exactly the
    same position.  if the collector can be shifted, you make it more
    versatile without needing to make it too much wider.  I'd guess you'd
    want something about  eight inches high at the front, with the front
    edge cut to a semicircle matching a six inch buff when mounted on the
    motor,  and perhaps two to three inches wide at the front end. With a
    good shop vac you should get pretty good suction from that sort of
    collector.   Mount a piece of coarse screening (perhaps 1/4 inch
    openings) in the back so that any jewelry caught by the buff will get
    stopped at the screen, not pulled into the shop vac.   Then, with the
    shop vac itself, use a HEPA filter capable of collecting the very
    fine particles. 

Peter

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