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A Spiral (helical sluice) for gravity concentration of sand slurriesEducation
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I used to design these for a living, now semi-retired thought I would share one of my own designs to those interested. This one is 320mm diameter, can be printed at half scale a lot quicker and will still work. You can make it as many turns as you want but I suggest at least 3 turns.
Materials and methods
The one in the pic, I made full size. It has 5 turns so that's 14 "trough" parts, one feed, one pbox and lid and 15clips. I've also got a feed distributor and piping to suit if you are interested.
Send me a message if you want to make one, there's a few tricks involved.
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