[Jewelry making - Article 00157] - [Orchid] Shop Setup and Ventilation

[PMTincDT]

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    I'm new to the forums and hoping to return to doing some metalwork
    after about 10 years away from it. I want to properly ventilate this
    time, and my dad has offered some equipment he has in storage - a
    squirrel cage fan from from a 100,000 BTU furnace and a standard
    stove vent hood. He thinks he can rig this over my soldering area to
    provide what's likely to be more than enough ventilation for the
    job. I have an electrician coming out for various projects, one of
    which is running a separate circuit for this fan and some other
    equipment. 

    Couple of questions - is it possible to have too much ventilation,
    i.e. is this thing going to be a total wind tunnel and remove too
    much heat while I'm soldering? I figure it's more than I need, but
    since it's free, will it suffice? Also, I have tended to set up my
    work area the way I was used to in class - with my great big
    soldering bench being a separate area, rather than everything at the
    work bench like I think most jewelers do. I read a post here a few
    weeks ago where someone had made a ventilation device with a
    squirrel cage fan that could be mounted and moved around the bench,
    I'm assuming to accommodate polishing dust, as well. Since according
    to the current plan, I'll only have the one fan permanently mounted
    over the soldering area, am I better off doing all my soldering and
    polishing work right at my work bench and mounting the vent hood
    there? Or does it need to be somehow right down on the bench? I
    would assume the source of suction would have to be a lot close r to
    the work when polishing than when soldering, with solid debris being
    heavier? I suppose I could put the soldering bench next to the work
    bench and just swivel around to solder, polish, and use the pickle
    all in that area to take advantage of the vent hood. Just trying to
    think this one through.... 

    If anyone has advice on setup or the fan issue, that would be much
    appreciated. If this fan is not the right one to be using, I"m not
    sure what to purchase instead. I've seen other squirrel cage fans on
    eBay, but not sure about how much power is needed to adequately pull
    fumes and dust. 

Thank you!
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