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Roof Magnets

 
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Old 09-05-2015, 12:18 PM   #21
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Re: Roof Magnets


The electro magnet is a good idea EXCEPT the direction of attraction runs in the same direction of the rod, so only the ends of the rod would be magnetic ( magnetic field runs perpendicular to the current flow).
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Old 09-05-2015, 08:11 PM   #22
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Re: Roof Magnets


What about water? That won't cause any problems with the electromagnet?
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Old 09-05-2015, 08:30 PM   #23
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Re: Roof Magnets


I'm not sure if they're the same as they were when I bought it, but I got a rolling magnet at Harbor Freight that actually kicks butt. It regularly fills up with rust flakes and other stuff I'd never expect it to get when we're working over gravel driveways and lawns. It's worth a look-see if you're on Route 2.
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Old 10-08-2015, 12:13 AM   #24
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Re: Roof Magnets


I use the AJC model
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Old 10-16-2015, 12:20 PM   #25
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Re: Roof Magnets


hard drive magnets. screw a bunch into a 2x4 on two sides.

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