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Author Topic: Salvaging speaker magnets.  (Read 2167 times)

tigertiger

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Salvaging speaker magnets.
« on: January 25, 2017, 05:36:35 am »
There are lots of uses for magnets as pointed out by canabus here  http://www.modelboatmayhem.co.uk/forum/index.php/topic,57126.0/topicseen.html


You can also get free magnets from the skip.
I got an old set of speakers from work and thought I would have a go at salvaging the magnets.
I found this really simple and clear 'how to' here https://www.youtube.com/watch?v=f5o5HEfo8UY
The only 'special' tool you need is a flame. The guy in the video uses a gas cooker, I used a gas torch.


Lots of tips, and don't on the video as well, e.g. don't over heat the magnets as you can kill the magnetism.


The only tip I would add is that the magnets are brittle and any chips will be super sharp and stick to the rest of the magnet. After removal, I gave mine a quick coat of spray paint to resist chipping.



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nivapilot

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Re: Salvaging speaker magnets.
« Reply #1 on: February 05, 2017, 08:35:31 am »
You can also get some smaller, powerful magnets by dismantling any old hard drive unit... :-))
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Big Ada

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Re: Salvaging speaker magnets.
« Reply #2 on: February 05, 2017, 06:05:43 pm »
Magnet Fishing, add a rope to one end of some Magnets and bung them out in your lake ( Holding on to the other end of the rope ) then drag it in, you never know your luck.
Lots of Videos on You Tube.

Len.
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grendel

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Re: Salvaging speaker magnets.
« Reply #3 on: February 05, 2017, 06:32:33 pm »
do they do anything that brass props will stick to?
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warspite

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Re: Salvaging speaker magnets.
« Reply #4 on: February 05, 2017, 08:08:26 pm »
Probably either a drag net fishing vessel or a full empty and traipse through the mud  {-)
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Big Ada

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Re: Salvaging speaker magnets.
« Reply #5 on: February 06, 2017, 05:09:34 pm »
Quote from: grendel on February 05, 2017, 06:32:33 pm
do they do anything that brass props will stick to?

Dunno but New style Copper Coins will as there is a lot of iron in them.
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