[Jewelry making - Article 01144] - Re: [Orchid] High speed spindle

[Andrew Werby]

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    I've heard that those Proxxon spindles aren't suitable for long duty
    cycles; they have a thermal cutout that will shut them off when they
    get hot (which may not be when the part is done). Air powered
    spindles are good for high RPMs and they don't get hot, but they do
    consume a lot of air. Having a 5 hp compressor going on and off
    constantly really runs up the power bills; it seems silly to do this
    for a tiny little tool. The spindles aren't especially noisy, but the
    compressor makes up for it. The NSK spindles are pretty nice, and
    they're pretty quiet, but they are expensive. If you want to keep it
    inexpensive, a small electric wood router or laminate trimmer is
    probably your best bet; they are rather noisy, but they're cheap... 

Andrew Werby
www.computersculpture.com
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