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  2. Gold Mining Reverse Helix Gold Trommels

gold mining reverse helix gold trommels

reverse helix bring gold back to the top (front) and drops gold and heaves under hopper. via groves like a screw . An easy way to make this part is a big piece of pvc pipe cut roughly 1 continuous cut while spinning pipe. will end up with a big slinky then fix it to inside of trommel so gold will climb to the top.

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