[Jewelry making - Article 00512] - Re: [Orchid] Tumbling / vibro polishing

[Ray Prater, Jr.]

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    Unlike rotary tumblers, which can handle any type of load, most
    vibratory tumblers must be set up for a certain range of load weight
    (an offset weight on a shaft is moved in or out to set the intensity
    of the vibration).  To polish with steel shot you need one set up to
    handle a heavy load, like a rock tumbler, rather than one that is set
    up for a light load like cartidge brass and treated walnut hull.  If
    you get the wrong one it won't hurt the motor but you won't get
    enough vibration transferred to the load to do much polishing.  The
    Mini-Sonic and Vibra-Sonic tumblers now made by Diamond Pacific are
    different because they have no motors and they have a knob to turn to
    adjust the intensity of the vibration. 

Ray

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