Looking to do a little educational project with mini wind turbine & new 3D printer

Hi Guys,
I'm new to the board, and had a few quick questions. Just got the Makergear M2 3D printer, and I don't think it's been idle whenever I've been awake lol. I've already printed the props & hub for a mini wind turbine. I know it's not ideal, but I plan to hook it up to a little tiny motor to see if I can generate a 300-500 millivolts. When I hand spun it, I was able to get it up to about 700 millivolts on my voltmeter.
Anyways...just looking at this as an educational project because I've always been fascinated with green energy. The wing span is only about 8" in diameter. My main question is what to do with this little, meager source of power lol. I'd like to capture it if possible. I plan on using a spur and pinion gear to help increase the velocity the motor spins at. I have a bunch of old RC batteries that are classifed as 3800mAh, 7.4v batteries. Could you just hook the +/- leads up to the battery and charge the battery (albeit very slowly lol).
Based on how I do with this one, I was planning on scaling up. Is there a defacto standard for a typical generator/motor used in wind turbines that has a wing span of say 2-3'? Also, does anyone know of any good schematics for printing a turbine about that size?
Thanks
I'm new to the board, and had a few quick questions. Just got the Makergear M2 3D printer, and I don't think it's been idle whenever I've been awake lol. I've already printed the props & hub for a mini wind turbine. I know it's not ideal, but I plan to hook it up to a little tiny motor to see if I can generate a 300-500 millivolts. When I hand spun it, I was able to get it up to about 700 millivolts on my voltmeter.
Anyways...just looking at this as an educational project because I've always been fascinated with green energy. The wing span is only about 8" in diameter. My main question is what to do with this little, meager source of power lol. I'd like to capture it if possible. I plan on using a spur and pinion gear to help increase the velocity the motor spins at. I have a bunch of old RC batteries that are classifed as 3800mAh, 7.4v batteries. Could you just hook the +/- leads up to the battery and charge the battery (albeit very slowly lol).
Based on how I do with this one, I was planning on scaling up. Is there a defacto standard for a typical generator/motor used in wind turbines that has a wing span of say 2-3'? Also, does anyone know of any good schematics for printing a turbine about that size?
Thanks

Comments
-Bill
I'm not sure what you mean by a blocking diode? I know a diode basically allows electricity to only flow in one direction, but beyond that, I'm not sure what the purpose of a blocking diode is. So since I'm in the mV range...I guess I need to go bigger, and maybe just hook up a little led to this practice run rather than trying to store any power, huh?
If the generator is actually an alternator, you need a rectifier assembly (up to 6 diodes) to change the AC output of the alternator into DC current.
-Bill