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Archimedes screw - double thread revisited

Average: 4.7 (7 votes)

Steve Seidl from sent me these pictures of a double Archimedes screw that he has put together. I've printed out the parts to have a go myself and will post the results later on. 

I'd come to a sort of over complicated dead end in my experiments on this problem, it looks like Steve has found a clear and simple way forward. Thanks Steve!

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