Interesting Instructables and comments for the vertical-axis wind turbines that one Faroun is developing. Here's his latest progress, based on 4" PVC pipe for the blades:
Check out 4 more turbine designs by the same user here. Things get a bit wobbly at the end, but much healthy progress with an admirably low cost setup!





































Could the wobbliness be corrected by laying it side and supported equally on both ends? Would being on its side effect the spin?
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I wish this guy would measure some form of output for his models.
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