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Nice Science Fair Style Mini Mill | 21 comments (21 topical, editorial)
Re: Nice Science Fair Style Mini Mill (3.00 / 0) (#21)
by ghurd on Mon Nov 27th, 2006 at 09:32:06 PM MST
(User Info)

Well, 3 to 5VAC is about the top of the Normal Condition volts I have seen under the smallest load.
Output (watts) will increase by connecting it in star. Volts may go up a hair.
After rectification, using Schottky diodes, the power is still only good enough for 2 rechargeable AAs.
Its been a while, but I think the rectified open volts past 14VDC at high speeds.
The ruler blades after being cut down to 8", in a strong wind, are Very Fast!

These make for a neat light show or learning experience, but they can't get the volts and a couple milliamps for much else. Unless the wind is very fast.
Maybe, one night it was doing about 10V at 75ma (guessing), but the wind was crazy that night.

I am sure there are many versions of these motors. Some must work better than others.
G-

[ Parent ]



Nice Science Fair Style Mini Mill | 21 comments (21 topical, 0 editorial)

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