Vibratory tumblers
In article ,
"Michael Koblic" wrote:
Of course rotary tumbling would be simpler...
And quieter, most likely. The rock shop near where I grew up had an
elaborate tumbling setup consisting of one long driven roller, one idle
roller, and a bunch of car tires (hold up to harsh media, contain
water/fluids, deaden sound.)
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Cats, coffee, chocolate...vices to live by
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