DIY Build an Electric Motor to Impress your Friends (slightly homo)
The other night tw34k showed me a video on youtube where a guy built a simple "homopolar motor" out of a few neodymium magnets, a AA battery, and a well bent piece of solid core wire.
So yesterday I went to the hardware store and found a found neodymium magnets and built my own. You can build your own in just a few minutes and show it to your friends. If youre hanging out with somewhat intelligent people, they will find it pretty clever. If youre hanging out with really dumb people you can tell them that it is magic, and they will be very impressed. |
Originally Posted by Full_Tilt_Boogie
(Post 616370)
You can build your own in just a few minutes and show it to your friends. If youre hanging out with somewhat intelligent people, they will find it pretty clever. If youre hanging out with really dumb people you can tell them that it is magic, and they will be very impressed. |
cool, thats awesome
my kids and adult friends will think thats great. I have those neo magnets in my oil filters of my moto-X and atvs. I use a thick (maybe 7-8mm) hard drive magnet on the outside of all my on-road vehicles oil filters. Hmm - I should start a thread on it and not clutter this up |
Originally Posted by Landrew
(Post 616389)
cool, thats awesome
my kids and adult friends will think thats great. I have those neo magnets in my oil filters of my moto-X and atvs. I use a thick (maybe 7-8mm) hard drive magnet on the outside of all my on-road vehicles oil filters. Hmm - I should start a thread on it and not clutter this up If you have any round ones you can build one of these and post it up ;) |
Originally Posted by Full_Tilt_Boogie
(Post 616370)
You can build your own in just a few minutes and show it to your friends.
If youre hanging out with somewhat intelligent people, they will find it pretty clever. If youre hanging out with really dumb people you can tell them that it is magic, and they will be very impressed. |
Ha, that's awesome.
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My wife works in an after-school care program and is always looking for cool projects to do...gotta dig out some old HD's and crack them open.
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I just tried it and couldn't make it work. What's the trick?
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The magnets in HDD are shaped like a human kidney and won't allow for much spinning.
If you do bring them to the daycare hand them out and hang around and listen to the sound of weeping, wailing and lamentation as those magnets are no respectors of small innocent fingers. They pinch they bite, they pinch pinch pinch, bite bite bite, the neodyium show....... |
Originally Posted by sixshooter
(Post 616404)
I just tried it and couldn't make it work. What's the trick?
If youre using ceramic magnets (the black kind), they may not be very conductive so youll have to wrap them in aluminum foil. |
Keep in mind if you're doing this with kids, the wire and battery will burn your hands if you have a small gauge wire and do it wrong. Just saying from experience.
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Originally Posted by Cococarbine3
(Post 616415)
Keep in mind if you're doing this with kids, the wire and battery will burn your hands if you have a small gauge wire and do it wrong. Just saying from experience.
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Does it have to be an AA battery?
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