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Remagnetize a rotor |
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(#1)
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Account Deleted
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Posts: 32
Join Date: Nov 2010
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Remagnetize a rotor -
11.21.2010, 04:25 PM
How can I remagnetize a demagnetized rotor?
I heard that this can be done by applying a magnetic field around the rotor which is stronger than the magnet. Any reply will be greatly appreciated |
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(#2)
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Old Skool
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Join Date: Feb 2007
Location: Devon, England
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11.21.2010, 08:27 PM
If you have a hyper powerful electro-magnetic field generator it may be possible, otherwise you have a nice fridge-magnet to play with; time for a new rotor ( what motor is it, are the windings burnt/ black/ smell like an ash-tray? )...
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(#3)
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Account Deleted
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11.22.2010, 08:54 AM
It's from a Novak Ballistic 540 5.5T.(12.3mm)I was running and my car suddenly stopped.It was cogging too.It wasn't hot.
The windings are ok.Tested them with an ezrun rotor.(I built a motor with ezrun can and rotor and novak stator....) |
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Not sure. |
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(#4)
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JERRY2KONE SUPERMAXX
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Location: HAYMARKET VIRGINIA
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Not sure. -
11.22.2010, 10:10 AM
Not too sure that would work very well. Kind of like re-bending something like an aluminum flat bar after it has been bent for the first time. It will always be weaker because of the initial failure. I would think that the only place that would have the equipment to do so might be a University lab, or a place where magnets are made. Considering what it might take to remagnatize your rotor, that you may just be safer to purchase a new rotor.
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(#5)
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RC-Monster Admin
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Posts: 14,609
Join Date: Nov 2005
Location: Des Moines, IA
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11.22.2010, 11:25 AM
I too would just get a new rotor. Even if you did remagnetize the old one, it likely won't be as strong and will reduce the efficiency of the motor by a substantial margin; and every 1% can make a BIG difference in temperatures.
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(#6)
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RC-Monster Titanium
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Join Date: Jul 2009
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11.23.2010, 05:44 PM
http://www.youtube.com/watch?v=QjO3m4d2g1k
At about 3:15 they show how they make magnets for electric motors and the process of magnetizing the material. Not something you can do in your workshop or garage! |
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(#7)
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Account Deleted
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11.23.2010, 06:25 PM
It helps. Thanks for posting.
I can't do something like this at 4:58? |
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(#8)
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Old Skool
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Posts: 7,494
Join Date: Feb 2007
Location: Devon, England
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11.23.2010, 08:24 PM
Buy a new rotor
 I doubt you have a 300 volt DC & 30amp PSU anyway...
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(#9)
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Fat Kid Engineering
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Posts: 3,634
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Location: Hot as Hell West Central Coast Florida
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11.23.2010, 08:36 PM
............
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(#10)
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Account Deleted
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11.24.2010, 03:31 AM
Yeah......I don't have a psu like this.....
Anyway,thanks for posting guys. @Bondonutz No,it's only for screwdrivers. |
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Bondonutz whit. |
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(#11)
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JERRY2KONE SUPERMAXX
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Join Date: Sep 2006
Location: HAYMARKET VIRGINIA
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Bondonutz whit. -
11.24.2010, 04:09 AM
Obviously you don't recognize his whit. That was the point of his port. He always has something funny for inputs. Thats just his trade mark.
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(#12)
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Account Deleted
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Posts: 32
Join Date: Nov 2010
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11.24.2010, 05:07 AM
heh...I'm new...I'll rearn soon
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