I had some old hard drives from a computer. I pulled two of them out of there.
I guess we did do a pretty ****ty job of 'answering' other than Catt22 (props)
I highly suggest going online and buying a nice strong magnet for the same price as the ceramic magnets at RS. The stronger the magnet (in my experience) the less precisely they must be centered for the stirbar to not fly off at speed. But keep in mind if its TOO strong, you could mess up the fan (maybe?) or make it hard for it to spin due to friction and possibly weight. Just my 2c
PM me and I will send you a couple of HHD magnets. I have "a few". Just pay for the postage.
I used one at first, it threw the stir bar more than I'd like to say. I balanced two magnets on a fan and they have worked great for me!
what is the beneifit of using more than one magnet? can't i just have one centered on the center of the fan?
Thanks for the input, but it didn't answer my question...
Suppose for a minute that I did not have an old hard drive... access to an old hard drive... or anyone who has any old hard drives.
Now... would a ceramic magnet work or do they have to be rare earth?
Thanks again.[/QUOTE
I tried their ceramic magnets and didn't work. The strength is needed when doing starters to really hold the stir bar. I bought mine from kj magnetics. they are cheap and I got them in 2 days in the mail.]
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