The Science Fair - Dual Rotor PMG

[iFred]

Just posted this page. Enjoy!

http://www.internetfred.com/scifair/thefair.html

Fred

[hiker]

thats great !!

we have somthing like that up here--a used pc store i go to allways donate

thier used up harddrives,to the local schools and from what ive heard they build

small pma,s with the hard drive mags..

[Flux]

Great work.

Thanks for shareing the pictures, can't beat starting young.

Flux

[wooferhound]

The coils seem to be to large for the magnets, or I can't see the picture very well.

[Gary D]

Hi Fred, what size/ type mags were used? Beautifull workmanship! I'm sure this definately got the boy interested in your projects! You may have a new helper! Gary D.

[DanB]

Cool page Fred, thanks for sharing!

Is that a neighbor your helping along... or your brother perhaps?  It's very nicley done...

Is he fixin' to raise it permanently somewhere?  It'd be fun to hear how it performs.

Thanks!

[iFred]

Wow, thank you all for the great and kind comments out their. We used 1/2 x 1/2 x 1/2 magnets, I beleive it was like 30 or so magnets for 2 rotors. The output was very very good, when turned by hand you would get about 15 vdc, when connected to a standard small drill it was like 50 or 60 vdc and about 1-3 amps. The project took place 3 months ago. I only got permission to post this week. This project was for a friend of mine, his son had entered into the science fair and wanted to build a windmill for powering up a outdoor water pump, so we designed for that. We all had great fun in building it!!

[Matrix1000]

Kewl! Thats pretty good power from such small magnets!

Now I've GOT to make one!