drywasher riffle design

Making Arizona Placer Gold
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nbsp 0183 32 The Riffle Box A riffle box is simply a rectangular tray with small rails periodically placed across to slow material being jostled down As a bellows below is driven up and down it taps the box and blows air against and through cloth that makes up the riffle box bottom...
Designing a dry washer from the ground up need some
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nbsp 0183 32 The Gold vac is the way I find the best gold I m now working on an idea to build a super gold vac using a 7hp gas motor off an old pressure washer and design a custom jet log to create a dry land dredge that feeds directly into my modified drywasher no more...
Heres My Newest Drywasher
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nbsp 0183 32 I m researching drywasher builds right now and was curious if you have dead space under your riffles I ve also noticed most people have 90 degree riffles I would of figured they d have a slight angle to make up for the angle of the riffle tray...

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