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Dec 21, 2009. 1:55 PMWesley666
says:
You can make them really strong with HDD magnets. The only problem I have a screwdriver I tried this with and its been 6 months and its still magnetized.
Also the reason it demagnetizes is because a magnetized object all the south and north pole ends are lined up, when its dropped it knocks some out of alignment and it looses its magnetism.
Also the reason it demagnetizes is because a magnetized object all the south and north pole ends are lined up, when its dropped it knocks some out of alignment and it looses its magnetism.
Dec 21, 2009. 4:18 PMdkop1 (author)
says:
I've heard of those magnets. i knew about the magnetic alignment. i noticed some screwdrivers of mine will de-magnitize, yet others won't.
Dec 21, 2009. 7:09 PMWesley666
says:
Some may have more Fe2O3 (Not iron oxide(rust), but ferric oxide) which is a magnetic substance to begin with. Small amounts may help or hinder how well it holds magnetism. This is what I believe but I really don't know why some hold better then others. It probably has something to do with composition of the metal. Also ferric oxide is used in ferrofluid which gives it its unique properties.
Oct 23, 2009. 7:17 PMMudbud
says:
Just use a charged film capacitor.
Thats how I (accidentally) did it. but I cant demagnetize it,(been 3 weeks). :3
Thats how I (accidentally) did it. but I cant demagnetize it,(been 3 weeks). :3
Oct 24, 2009. 7:52 AMdkop1 (author)
says:
I noticed that some of my screwdrivers will de magnitize, some won't. the ones that won't i sat on a piece of solid aluminum for a few days and they demagnetized.
trick: good
instructable: bad
picture: stolen/inexistent
step: messed up
overall:3/10 from me :p
instructable: bad
picture: stolen/inexistent
step: messed up
overall:3/10 from me :p
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