Combining two large neodymium magnets including spacer

[humer15x]

noch umständlicher gehts ja wohl nich........lächerlich, vor allem die handschuhe

[Begbucks]

I like the pyramid at the end, fitting...

[reno911unlocred]

ya ya all its cool, but where i get thoes so powerfull magnets?

[brainiac75]

@reno911unlocred :

I live in Europe (Denmark) and know very little/nothing about availability in Mexico! Try eBay.

[kcufbla]

Congratulations on the Elona music :)

[1BustedMyth]

One inventor in my local group has crushed a fingure completely and has had to have it removed, so the danger is VERY real, thankyou for making this video.

[Apokolohypnotis]

Please tell me where can I find a similar magnet at a acceptable price? Thanks !

[brainiac75]

@Apokolohypnotis :

I don't know what you would find acceptable. Each of the magnets in this video are sold for €100 on their website but magnetportal has the exact same magnet for sale right now for €82 on eBay (search for 'neodym d70-h20' - seller is called neodym-24).

I do believe it is impossible to find a similar magnet much cheaper unless you go down in grade from N52 to N45 (on eBay for €65). Neodymium is so expensive right now (from June 2010 to June 2011 the prize soared by 750%!).

[Apokolohypnotis]

@brainiac75 82€ is acceptable ... I found magnets that where 400$ and up ... that I think is expensive for a magnet. At least for what I need it :P

Thank you for the answer, I found a N45 at 65$ 2 x 1 inch.

[Apokolohypnotis]

@brainiac75 Actually what I am trying to do is find a replacement for "instrument dent removal tool" you can search for it if you want (on youtube). Do you think is possible?

[brainiac75]

@Apokolohypnotis :

Yes, I think soft dents in fx cars can be removed with a magnet with the right technique.

[mrmagnetsarecool]

For those who doubt the power of these magnets, I would say buy two 1-inch or 3/4-inch cubes and try and put them together by hand without chipping them or letting them slam. Then try and pull them apart by hand. You will see and feel the power

[thecreativewebshow]

or you can just put one on top of the other.

[brainiac75]

@thecreativewebshow:

These magnets are not Lego :)

[thecreativewebshow]

@brainiac75 but seriously why cant you just set it on top of each other? why would shrapnel fly around?

[brainiac75]

@thecreativewebshow:

They are simply to powerful. If just put together they would accelerate so hard that even at a short distance they would reach a collision speed that would break pieces of the magnet. Neodymium magnets are crystalline and brittle - treat them like glass.

And each of them pull with well over 200 kg force so it's not possible to just 'hold them back' by hand when putting them together. That's why I use a wedge. They are also expensive and rust away fast if chipped/shattered.

[Ericec4126]

I bought a subwoofer speaker,and they said its made from neodymium magnet. How would I know if it really is a neo?

[brainiac75]

@Ericec4126:

Modern speakers usually have the magnets hidden so it's not really easy to tell. The most obvious feature would be that the magnet system looks surprisingly small in comparison with a speaker of similar size and overall quality but with ferrite magnets.

Since taking the speaker apart is not an option you just have to trust the supplier...

[croatiaa4ever]

@brainiac75 man.. are those that strong? :p

[brainiac75]

@croatiaa4ever:

I like how many people doubt the strength of the N52 magnets in the video. It shows how safe my procedure is when the magnets are so easy to handle that they seem almost weak to many people.

They are not! Search 'neodymium n45 magnet accident' if you want to see pictures of a nail and fingertip ripped off by neodymium magnets. His conclusion after months of serious pain: Never ever use two big magnets at the same time...

[croatiaa4ever]

@brainiac75 do you know how to make neodymium magnet?

[brainiac75]

@croatiaa4ever:

Well I sort of know how they make them. Search for the video 'How SuperMagnets are made' for some details and video from a neo magnet factory. It's not something I can do at home though :)

[croatiaa4ever]

@brainiac75 ok man i will :D and tnx for upload :)

[11kungfu11]

@croatiaa4ever Its not a very easy thing to do but if you are really interested. If you can get the materials to make a NdFeB magnet Neodymium (Nd), Iron (Fe) and Boron (B). You will need a small metal foundry purchasable over the internet (obviously with no metals with magnetic properties) A vibrating cradle cooling bath (often composite ceramic) to lock the molecular structure togeather (and can also make harder and stronger magnets) and the right ratios (continued)

[11kungfu11]

@croatiaa4ever and the right vibrational speed to made the desired strength on the magnet its self (the harder the more it shards the softer the weaker and more damageable) the strength of the field comes from its composition you can try adding other metals just as titanium (Ti) or catalysts to alter and inhence the properties of the Neodymium. personally I have been getting into ferrofluids more so, Making a furrofuild accelerator to be exact.You will be able to work out what 4;)

[croatiaa4ever]

@11kungfu11 well i dont have much time to do that, and have no idea where to get stuffs like titanium,boron,ferrofluids etc. but this is very interesanting thing to do :D

[11kungfu11]

@croatiaa4ever :P furrofluids are quiet easy to get actually its in the ink toner of your printer but the avalible furro fluids are not usefull in a accelerator lol. You can source all things over the internet these days. Its really interesting to do:D furrofluids are harmonics are my two intrests atm ;P

[infinitohd]

tiene alguna pagina web donde comprar imanes grado N42 GRACIAS BONITO VIDEO

[overether]

but will it blend?

[overether]

I like safety!

[HsingG32]

so i guess with human hand once combine is really like one metal ....

[jacbar39]

...Your videos are extremely informative. If I would add one additional safety feature, it would be to tape down the security board so there is no chance of slippage. That bit of movement in the vid at 3:45 caught me by surprise just looking at it - I would hate to experience it first hand!...

[cyclenut]

I take magents out of old server hard drives.. Those things are pretty strong.

One day I plane on making a wing generator with them...

[dougspair]

@cyclenut ..Yes...I too...I have about 40 of them..but no two the same...

[Walkingdeadman1991]

About how strong are those magnets in kilograms?

[brainiac75]

@Walkingdeadman1991 :

They are advertised at 270 kg each.

[slaske666]

@brainiac75 When you say 270 each, will it be double when two magnets?

might sound like a stupid question, but this small fact can save alot of fingers .. :)

[brainiac75]

@slaske666:It depends on what you mean by two magnets? If you place the two magnets 'side by side' in an application where they both hold an object with both of their flat surfaces in use:Yes,then you have double the lift/pull force.

If you combine the magnets to one:No,you will not have double the force but only ~1.5 times the force so it will take roughly 400 kg force to pull them parallel appart if they are stuck together.Much less if you slide them apart as shown in another of my videos...

[mrmagnetsarecool]

You have the best magnet videos on Youtube, very high quality. Thanks for sharing

[brainiac75]

@mrmagnetsarecool :

Thank you very much. I'm making more so stay tuned :)

[vSxScopeZz]

Hi im thinking of buying another neodymium magnet with a pull force of 87pounds will i need to do whats in this video to put them together?

[brainiac75]

@vSxScopeZz :

No. It would be enough to use a wooden wedge like shown in my video 'Checkerboard pattern for magnetic levitation'.

[MetreaX]

fake

:)))

[ninjaygo]

@MetreaX explain your reasoning

[MetreaX]

@ninjaygo i`m just joking :)

why so fucking much things to put 2 magnets together? we are not so idiots

i have smaller neodymium magnets,they are dangerous for finger/hand,but a chainsaw is dangerous too,and i dont need any equipment to cut some wood... so...fuck this idiot video!

[brainiac75]

@MetreaX :

Lol :)

It is easy to tell that you have never tried handling large neodymium magnets. I'm not sure I understand your chainsaw analogy? Chainsaws are filled with safety features and can even be quickly turned off. But still a lot of people (not you apparently) use safety equipment when cutting wood with a chainsaw.

Large magnets on the other hand have no safety features, can't be turned off and even smart people are surprised by the power in these.

Thanks for trolling!

[XravenorX]

@MetreaX Magnets this large can exert hundreds of kilograms of force. If your hand got caught between the magnet and a metal plate it would crush every bone and tendon in your hand. And believe me, without help you would NEVER free your hand, save for amputation.

These magnets combined would probably provide about 300-400kg's of force. Basically, half a car's weight resting entirely on your hand. And there's no way to "turn them off", so once you're stuck, you're STUCK.

[acenima]

lol that took so long

[brainiac75]

@acenima :

Yep - much slower than to just throw them together but then they would chip and shatter. And with around $300 worth of magnets in this video I prefer to take my time...

Thanks for watching!

[dlock5050]

Lol you posted in your last video that you dont wanna use gloves to be dangerous. Im thinking what the heck will gloves do if your hand gets rushed between 2 magnets. All i could think was it might help your hand slip out (and i was right because you said that in this video) or at a worse case scenario atleast the pressure and material of the glove might hold back the blood giving you more time to reach the ER before you bleed to death.

[cgrobe21]

And what does a person do with such a strong magnet? What can a magnet of such be helpful with or used for?

[burazekun]

This is actually greatly informative. Thanks! Not something I am planning on doing, but a great idea is shown on the magnets properties and strength.

[redsquirrelftw]

wow those are big and powerful. Having played with hard drive magnets (much smaller) and getting minorly hurt (mostly pinched lol), I can appreciate the real force and danger such magnets can have!

Where can one buy magnets like this? Would be cool to build a motor or generator.

[brainiac75]

@redsquirrelftw :

Hi. These magnets are available online. I live in Europe and have no experience with dealers that ship to Canada. But you should try: magnet4less. C()M. They have a good selection at a fair prize.

Good luck and be careful :)

[061811]

hello, an new to this. just wondering if the strong mag. force is harmful to human?

am thinkg of buying a small n52 after watching youbute. thank you

[brainiac75]

@061811 :

Hi. You don't need to worry about the strong permanent magnetic field from neodymium magnets affecting your body. Countless studies have shown that it doesn't harm humans. Some even claim that magnets can be good for your health (but I'm not a believer in that).

What you need to worry about is the strong attraction to other magnets and metal objects. Don't get your fingers stuck between them :)

But do go ahead and buy a small N52 magnet. You will not be disappointed.

[otaku3d]

relaxing. petting magnets is like zen therapy . Showing respect to them also reflects in respect to nature and universe.

[chrisbuffoni]

What do you use them for???

[brainiac75]

@chrisbuffoni :

Fun and fascination!

[richtankone]

@chrisbuffoni I have been buying and using odd shapes and sizes of the for anything and everything, built a catapult with them not too long ago, I built an electric motor with one and just kinda mess around with them. fyi you will pinch your fingers every so often when you fiddle with them.( i wouldnt fiddle with ones this big)

[rolftehezomg]

howd i get here



[cmanmaxwell]

damn usually I jus throw them in the air until they connect.

[Formidablestudios]

fuck that ima just put them together

[iRouRoui]

fucking magnets how do they work ?

[thedude8116]

Wow dude. You are awesome. I don't have the hockey puck magnets you use in your video, but I can imagine how powerful they are. I just got the 7mm neocube, and those tiny bastards are pretty mighty. Magnets are fascinating on some subconscious level I think. Something magical about them, I don't know. I am almost thirty years old, and always loved playing with magnets, since the first time I tore apart an electric motor from one of my toy cars.

Thanks for the cool videos. Keep up the good work!

[17hmr243]

every person iv let touch my magnets has let them slam together even after i tell them there not toys and chipped / shattered most of them i don't let any 1 touch them now less they can afford to replace them

PVC tubing and end caps i use on me big 1 it 1inch thick 50mm wide n52

stops it being chipped but still usable

i made this little cart on broom stick and whent up and down drive way to pick up nails for scrap metal place which payed for me biggest 1 so it free

[brainiac75]

@17hmr243 :

Thanks for sharing your experiences.

I thought I had done my homework before buying a large neo magnet but the first day with my first large magnet I chipped one of the edges with a steel ball from a Geomag-set...

Haven't chipped a single magnet since but I also make sure that I am the only one handling the magnets :)

[CrapPolice]

Danger having two seperate magnets in your two front pockets can turn you into a lady!!!!

[birdoffirephoenix]

i metal did think in my head and magnet smash smash smash head. Ouch. Metal plate replace in head is OOOOh tay now. thank posting you. I get over better with time.,

[kitchenfromhell]

if you know neo balls, the game with the small neodium balls, just try two of them as an ear ring, so you can feel the power. it hurts but it does not damage.

Now imagine what can happen with these big ones.

[brainiac75]

@kitchenfromhell :

You would look like a boxer after a Mike Tyson fight! These magnets bite better than him...

[slypsi]

I accidentally smashed one of mine - sparks and pieces flying everywhere! Very scary things these magnets are...

[tyreza79]

wow, dam, i have only small ones from hardrives, please tell me where are those to be found , please i want them !!!

[brainiac75]

@tyreza79 :

In Denmark these large magnets are only available online. Probably the same in your country. The magnets in this video are from eBay and magnetportal . de

Unfortunately neodymium is now (july 2011) almost 4 times as expensive as just half a year ago so these magnets are very expensive at the moment. The two magnets in this video would cost a total of €260 + shipping (around $370+shipping) from magnetportal today...

Please be careful if you buy one :o)

[curtisz789]

Thanks for the Great video!

Magnets are amazing!

[elitechalenger]

cool vid

[wheewheo]

I have that Ikea dish!

[rofl1cp]

Could this literally like go through your arm?

[thermaldog]

Your videos are excellent and i would like to ask you 2 questions please: 1. Do neodymium magnets ever lose their strength over time? 2. Have you ever tried to generate electricity using these magnets by making them spin, hooked up to an alternator?

thanks.

[brainiac75]

@thermaldog:

Thank you.

1) Neodymium magnets are not only very powerful they are also some of the most permanent magnets invented. A general rule of thumb is that they will lose under 1% of their power over 10 years. Some will say that they will last 300-500 years but that's pure guess since neodymium magnets have only existed since 1982 :o)

2) No, but all magnets can be used to generate electricity in the right setup.

[thermaldog]

@brainiac75 thats good news, thanks.

[nybarnards]

Thanks that helped alot now i know what to get : )

[nybarnards]

i want to get some but i am kinda young like 12 are these to powerfull? i just want to play around with them and not break all my fingers should i get them? please reply

[brainiac75]

@nybarnards :

Yes, the magnets in this video are WAY to powerfull for a 12 year old. These are not toys.

You should start with some small ones. I would recommend neodymium magnets up to a max dimension of half an inch as starter magnets. Be prepared to get a little pinched anyway :o)

[mtube620]

@nybarnards i'm an adult and still those magnets look scary to me lol.

I'm planning to get a couple of 1.5 inch diameter disks kind.

[SKYNETDUO]

Where can i get those kind of magnets???

[CrMoshed]

are they seriously that powerful or are you just being abit cautious?

[UberDELTA]

@CrMoshed these magnets are really extremely powerfull believe me

[RyanB0011]

@CrMoshed Those magnets are insanely powerful, trust me. I've had 1"x1" N48 magnet cylinders before and even those scared me.

[jreedmcu1]

good video, keep up the interesting work

[tmafkap]

Wow!

[RF3seeker]

it stopped at 3:13

[brainiac75]

@RF3seeker :

You mean the video stopped? Try reloading the video - it plays to the end on my laptop although I also sometimes have problems with connecting to some videos on Youtube.

[MrLimjingxiang]

very interesting