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fun projects
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21
comments (21 topical, editorial)
Re: fun projects
(
3.00 / 0
) (
#11
)
by electronbaby (
roy<at>windsine.org
) on Wed Aug 27th, 2008 at 02:14:17 PM MST
(
User Info
)
http://www.windsine.org
good question. The steel I had obtained for these machines was from the junk yard. I machines them to be true after the fact and yes, they are a little pitted. I heavily wire brushed them and sanded them to clean it up a bit. I should have had them powder coated, but there is some argument as to which lasts longer. powder coating, or oil based paint. I ended up using oil based paint directly to the steel which has a very good bond once died properly. I understand your point though. I just have been doing it this way for a while and haven't noticed any adverse effects. I guess in all actuality, the magnets don't need to be glued down at all. They will stay on the disc just fine. The banding and resin is to keep them from shifting side to side and to keep centripetal force from pulling them outward. The painting or coating the disc in some fashion before putting down nickel coated magnets is a good thing to do because it keeps down on the galvanic reaction the dissimilar metals have. It keeps corrosion to a minimum by electrically isolating the disc and the magnet. For all practical purposes, they are still very well magnetically coupled however.
Have Fun!! RoyR KB2UHF
[
Parent
]
Re: fun projects
(
3.00 / 0
) (
#17
)
by suitep123 (
harrison7299@comcast.net(no spam)
) on Wed Aug 27th, 2008 at 07:16:45 PM MST
(
User Info
)
Thank you, Makes great sense, I have a lot to learn,
:)
Bob
[
Parent
]
fun projects
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21
comments (21 topical, 0 editorial)
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