Dia. Mag. Alternator

[nievesoliveras]

The bulbs flicked a little but after the generator went into speed they lighted very well.

Keep your good work!

[FatBird]

Great photos.  Thanks.

[z.monkey]

Make it go faster...

I pulled this motor out of my Bicycle Wheel Alternator.  Its a Dayton part number 2M197...

http://www.grainger.com/Grainger/wwg/search.shtml?searchQuery=2M197&op=search&Ntt=2M197&N=0&sst=subset

1/35 HP, 2350 RPMs on the label, but the spec sheet says you can push it to 3600...

Right where I want to be...

[nievesoliveras]

The link you posted says that that motor has been discontinued. So in that case if it work well it will be unique.

[z.monkey]

You know what we need to kick the efficiency through the roof is to fill in the gap between the magnets, and the core bore.  That is a giant gap for a flux field.  Mega loss of efficiency there.  There is 1/16 of an inch there.  I thought about stuffing it with Iron filings, but they are a bit abrasive.  What about magnetic fluid, perhaps a lubricant, with microscopic iron spheres, like micro ball bearings... 

Cheap, easy to make, yes its ferromagnetic fluid...

http://chemistry.about.com/od/demonstrationsexperiments/ss/liquidmagnet.htm

http://www.youtube.com/watch?v=vsQh1AT6qUE

http://www.youtube.com/watch?v=kL8R8SfuXp8&feature=channel

This is the game changer.  "The Gap" has been the bane of electromagnetic experimenters for a couple of centuries.  We shall fill the gap...

Just what I was talking about little ferrous particles suspended in an oil.  Yes!  Although I think I'll use motor oil.  I'll need to seal the bores now...