Step 3: Wrap Magnet in Foil

The foil is simply used to prevent the tape from sticking to the magnet. The cover can then be changed or removed as desired in the future.

Wrap tightly, then pinch the ends closed. Don't pinch tightly or the foil will tear at the corners as they are sharp. The excess at the ends can be torn off carefully, or cut with scissors, leaving 1mm or so overhang that is then folded down and compressed.

To cut with scissors: grip magnet tightly in a fist so that the edge of the magnet is 2 or 3mm below the thumb-side of your closed fist. Rest the scissors against your hand...you will feel the magnet pull the scissors tightly against your hand. Keeping a firm grip on the magnet, angle the scissors slightly up so as not to cut any of your skin; cut the aluminum.

(Use this same technique for cutting the excess duct-tape in Step 6.)

*In this picture I'm a little too close to my clipboard...moving that magnet 1cm to the right would cause an unwanted attraction.


<p>Wow, people need to be careful of these magnets. Someone close to me walked past a metal gate and the magnet smashed her hand up against the iron gate and bruising her finger pretty bad. And she was about 5-7 inches away from the gate just walking past it with the bare magnet in her hand. Take precautions with these things. If the magnet breaks you buy another one, you can't repair smashed or busted fingers like new people.</p>
As a matter of a fact, J and K magnetics has a magnet seperator they sell, and if you don't want to buy a magnet seperator, they say to put the two magnets against a door frame and push until the magnets seperate, and keep going(trust me keep pushing, it's just safer that way).
No, I mean united nuclear's magnets that many inches across. those are the ones that they tell you to plan you path through a room with them so they dont fly across the room and shatter into many peices. They affect magnetic feilds in an entire room and easily crush fingers and arm and make metallic objects shoot twards them at great distances. fun but insanely dangerous;)
WT... giant !!!!
Hi, i want start working with this kind of super magnet , and want know have you information about them,, like they power of magnets and lifting power and something like that, i really need this info, if you can help me or know somebody who can please tell me by my email :moein_glory@yahoo.com<br>im really waiting and tanx a lot
Holy Muffin man...<br/><br/>The is huge!<br/><br/>You could change the place of the north and place it in the south =P<br/>
Whatever you do don't do what I did. I bought two of these thinking they would be fun to play with. I put one in my front pants pocket and as soon as I went to put the other into the other pocket I realized that it was a bad idea. That being said and dumb, covering neo's is definitely a must which makes this a very good Instructable.
<a rel="nofollow" href="http://www.kjmagnetics.com/categories.asp">K and J</a> have even stringer magnets than United nuclear, the big one pictured above is only N45 and no they are &quot;not the most powerful&quot; as UN claims, the scale goes to N50 which k and J just got a huge stock of like this one. <br/>
Actually the scale goes to N52 and the one you have here are smaller in diameter than the other one with being held in the hand.
I have 10 of these in my room they totally destroyed my computer and electronic equipment including credit cards
oh my word that thing is huge. I want one. bad.
now that they're covered, are they still harmful to credit cards, computers, electronics, etc.?
is it better to get magnets at kjmagnetics.com or magnets4less.com?
I found the best way to prevent chips and make these giant magnets somewhat safer is to coat them in a product called PlastiDip, which you should be able to find at a local hardware store. (It's used for coating metal tool handles with a rubberized grip)<br/><br/>You'll need some fishing line or thread, and a non-magnetic container for dipping (it comes in metal cans). Give it at least 2 or 3 coats (allow several hours to dry between coats)<br/><br/>For anyone who wants to buy these magnets to play with, be aware that they can be very dangerous if handled wrong, and for god's sake, if you've never handled neodymium magnets before, DON'T buy two... They are exponentially more powerful when they stick to each other. I've had my keys *embedded* in the back of my hand from careless handling of these things (broke the skin in one place and caused massive bruising). Play Safe!<br/>
that is a great tip - thanks! so you tie the fishing line around the magnet, then hang it to dry, correct? what do you do with the line once you've made all the coats and it's dry - just cut it off and leave it embedded? also, does the coating tend to pool at the bottom due to gravity? or maybe you hang oriented different ways during the various coats to even that out? thanks again for the useful tip.
hey guys i live in australia, and i cant buy off unitednuclear because i live outside of th US of A. i was wonderng if i transferred some money to someones account they could but the magnets for me and ship them to austraila.thanks
i would recommend buying off of ebay; they have a wide selection and the prices are better than UN anyway. that's where i've bought all of my magnets. just do a search for '<a rel="nofollow" href="http://search.ebay.com/neodymium-magnet_W0QQdfspZ32QQfasiZ1QQfbfmtZ1QQfsooZ2QQfsopZ3QQsabfmtsZ2QQsascsZ2QQsbrbinZtQQsbrsrtZd">neodymium magnet</a>neodymium magnet' on ebay; various sellers provide quite a wide price- and size-range.<br/>
i saw some N45 neodymium magnet rings on unitednuclear.com and no warnings are given in the ring section. N45 neodymium magnet RINGS!! am i the only one that sees the possible damage that may result from carrying a powerful magnet on your finger everywhere you go? i think they should atleast have some kind of warning
you can cut the foil with your thumbnail by setting it down on a surface that's not completely hard like a cutting mat and using your 1st 2 finger as guides by pressing them flat against the surface, I learnt this from many things I have done in life considering my slodering iron went missing and I am a lover of match rockets the tine foil makes a great many appearances in my life
Scitoys.com has some magnets that are even slightly more powerful than United nuclear's magnets. I have scitoys 12mm cube magnets, and bought over 12, only to end up with 3 not getting chipped. I really need to try this.
good instructable. if you think those are powerful look at <a rel="nofollow" href="http://unitednuclear.com/magnets.htm">these monsters</a> (they are near the bottom of the page under &quot;Super magnets&quot;) now that's what I call a magnet<br/>
WOW. This has really impressed me with the dangers of these magnets. Holy smokes. Great instructable.
Where do I get these things? They seem like fun! Maybe these are the magnets that we see in cartoons where someone holds out a magnet when the bus comes along, and they are pulled down the street following the bus. :)
i bought them off of ebay, where you can get just about any unusual item. be very careful if you order any - they are so strong that they can be quite dangerous.
are you covering them so to prevent chipping?
yes. also to make them easier/safer to handle as they are very very strong.

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