Interesting Rock Tumbler

Posted on June 6, 2016 by robertwilkie

The author calls this a ball mill.  Others know this as a rock tumbler.  Its a pretty straight forward build, Take an old cordless drill and attach it to some bars with rollers, put a can on the rollers, and bam…ball mill/rock tumbler

http://www.instructables.com/id/Ball-Mill-1/?ALLSTEPS

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