25 blade water propeller
thingiverse
This is a propeller useful for many things but works INSANE in water ( I put a normal not modified lego motor on in and spinned in straight down in the water and it was like a drill. There was NO water above the propeller.It created something like a water "tunnel".And the pullforce is insane too.Pulled my hand into the water several times...) DOESN'T WORK GOOD IN AIR ONLY WATER! If you want me to build something contact me.I'll be happy to help. Contact info : https://milenkovicluka449.wixsite.com/milenkovic
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