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Neodymium iron boron (NIB) magnets are extremely powerful. Even moderate-sized ones can be amazingly dangerous to handle at first.
In this project I demonstrate a simple, cheap, relatively effective way to cover 2-inch (5cm x 2.5cm x 1cm) NIB magnets. This size is commonly used in home wind-generator projects.
Materials: aluminum foil, duct tape, masking tape, double-sided tape.
Tools: scissors
In this project I demonstrate a simple, cheap, relatively effective way to cover 2-inch (5cm x 2.5cm x 1cm) NIB magnets. This size is commonly used in home wind-generator projects.
Materials: aluminum foil, duct tape, masking tape, double-sided tape.
Tools: scissors
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Signing UpStep 1Safety Precautions
Part of the reason I came up with this covering system was because these magnets are so powerful that they can easily injure you. The covering as shown makes them much safer and easier to handle (though caution is still required).
If you've had experience with NIB magnets you've already learned this, and probably the hard way: these things are very dangerous if not handled properly!
Be careful with NIB magnets of any mass...any magnet larger than a penny is definitely dangerous (and even smaller ones can be if they slam together and shatter). These magnets are sintered, which means that they are not a solid mass of metal or ceramic, but are rather compressed powder. Thus they splinter or shatter very easily.
Additionally, they are so strong that two (or more) of them can react while several inches apart, and these two-inchers could easily rip one's flesh off if they pinch together right. They will also attract iron-based metal objects from a distance: scissors, knives, or other objects will unexpectedly be attracted.
So when working with these, before you begin make sure you clear your work area of any metal objects. Work with one magnet at a time until you become very certain of your procedures. If two of the magnets used in this project slam together, there is essentially no way to get them apart without damaging them (actually I'm sure a way could be found to separate them, but it's certainly best to not let them join).
When cutting the tape off the ends there is a special technique I use to prevent letting my scissors attach to the magnet, which I will explain directly
If you've had experience with NIB magnets you've already learned this, and probably the hard way: these things are very dangerous if not handled properly!
Be careful with NIB magnets of any mass...any magnet larger than a penny is definitely dangerous (and even smaller ones can be if they slam together and shatter). These magnets are sintered, which means that they are not a solid mass of metal or ceramic, but are rather compressed powder. Thus they splinter or shatter very easily.
Additionally, they are so strong that two (or more) of them can react while several inches apart, and these two-inchers could easily rip one's flesh off if they pinch together right. They will also attract iron-based metal objects from a distance: scissors, knives, or other objects will unexpectedly be attracted.
So when working with these, before you begin make sure you clear your work area of any metal objects. Work with one magnet at a time until you become very certain of your procedures. If two of the magnets used in this project slam together, there is essentially no way to get them apart without damaging them (actually I'm sure a way could be found to separate them, but it's certainly best to not let them join).
When cutting the tape off the ends there is a special technique I use to prevent letting my scissors attach to the magnet, which I will explain directly
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im really waiting and tanx a lot
The is huge!
You could change the place of the north and place it in the south =P
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)
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!