If anyone is planning on building a similar device, you'll get much better performance if you also surround the outside of the coil with a nice thick jacket of iron or steel, leaving only the "active" end uncovered, because this will trap and concentrate all the flux lines that are lost in this setup out of the sides and back of the magnet.
+Ryan Willis coming up with the perfect materials for this without spending an arm and a leg reminds me of a movie scene in Back to the Future where Doc Brown said to Marty McFly - "I'm sure in 1985 plutonium is available in every corner drug store but here in 1955 it's a little hard to come by"
any insulated wire will work, but keep in mind magnets may get hot depending on how long the wire is compared to the voltage and current and if the insulation melts or burns it will short out. Magnet wire is designed to withstand heating and has very thin insulation so you can get many windings in the space of the coil
If you can get a core made from soft iron, laminated, such as in a transformer core, it would work better. I've never been able to take apart a transformer without destroying it. the idea here is to build a strong electromagnet out of easily obtainable materials.
You know some of the poor people from other countries are forced to make up their own electric products you should check out some of their videos and their hacks because they are really smart people.😊
it is a man made island of sand dredged from the inter-coastal waterway. originally suspected people were burning pallets for bonfires but now believe that people accumulated their destroyed docks here after the last 2 hurricanes and burned the boards and left all the nails and other hardware. There is a lot of green ash in the sand which I believe is what remains of the chromated copper arsenate wood treatment.
The longest I have tested this magnet at 100% duty was about 4 minutes. I do not have a thermometer to accurately measure the surface temperature but it has never become too hot to hold in my hand. If 12V @ 15 amps was left on it continuously the heat will continue to build up until a balance is achieved where the outer surface cools at the same rate the coil generates the heat. Suspect it will be well below 100C in open air. There's a scientific formula for this somewhere out there
Hey there! If you still make videos, Id like to see how you wired up the momentary switch and how it looks like without the pvc pipe for reference. Tysm, trying to make one myself
We believe that after hurricanes the wood from destroyed docks were piled up there and burned. The islands are man made built from dredge tailings ffrom digging out the inter-coastal waterway.
magnet wire is solid wire, usually copper, with a very thin coating of enamel insulation. Used for making transformers, motor windings, inductors, electromagnets, solenoid windings, etc.
I tested it with a sledgehammer (only thick solid steel object I had) tied to a 5 gallon pail that water could be added to increase weight until it broke loose which was at 34 lbs.
Cool to make but for work i think its better to just get a piece of iron magnetized. I was trying this on a smaller scale trying to magnetize a nail. I used 30 feet of 30 gauge magnet wire with a nine volt and no real strength. Any tips?
I need a 20 Tesla electromagnetic field and have zero plans to use cryogenics. I can build the coil, no problem. So I'm trying to think of some novel ways to avoid the wire melting when I switch power on. (Backstory -- I'm building a high-field NMR (nuclear magnetic resonance) device to test the outcome of aligning, then oscillating 1/2 spin atoms for the crew compartment in a ufo build-out). If you have any ideas on avoiding the use of cryogenics to keep wires cool, please let me know -- thanks in advance. . .. .
A couple ways you might be able to get magnet wire for much less than the cost of new material from an electrical supplier. Ebay. You can get anything there and often get great deals. Check your local scrap yards regularly. If they will sell to the public and let you search the bins you might get lucky and find what you need at just over scrap value. But be cautious. Old mag wire might have brittle or damaged enamel insulation.
I'm not an electrical engineer so could not answer that one accurately. Although I have seen diagrams of industrial scrap yard magnets and one showed multiple coils inside.
I don't think you could build an electromagnet out of common materials that did not generate any heat. It's just the way it is. I discussed this project with a friend who is an electrical engineer to get an idea of the best design and he rattled off some ohms law formulas and we came to the conclusion with this type coil and core at 12v about 600 ft of magnet wire would be optimum.
I inherited a farm with a bunch of old burn piles and rusted junk piles and this would be great for me. I am good at building and fixing things but I have never messed around with things electric. One of the things that intimidates me on your video is the part where you talk about ohms, watts and whatnot. It's way too much like math, and I just barely got through that in community college. Anyway, is this a dangerous project to attempt without any electric knowledge, or should I try to find an electrician to make one for me? Thanks for the great video. I would give you two thumbs up but they only count one!
+William Mayer An electromagnet is a very simple device. Making an efficient electromagnet might require some of that confusing math. As long as your not messing with high voltage or directly shorting out a car battery this is relatively safe. Hopefully I don't need a legal disclaimer?
wow, you got about 1 buck of worth of iron on that magnet! That's free iron ore , which is quoted at major trading exchanges at 140 bucks per metric ton (today's price). This is free money lying on the beach. (a metric ton of iron is about 8 times smaller than a metric ton of water , considering the density)
nesesito informacion de k materiales nesesioo para aser ese electro iman porfavor tengo k entregar uno para este sabadooo y no c k matereiales lleva me podran ayudar
the power (electricity) supplied was 12 volts, can I make it for 3 volt? then which coil should i used and also tell me about number of coils and other necessary tips . please
Hey, sup man, im kinda in need for a science project. Just wonderin if you could send me a message or something on how to build this, you know, like instructions, and i´d really appreciate it. Oh, and i already liked and subscribed. ;)
About 9999999999999999, and they would crash It would be just as if they both crashed, but to an invisible barrier as no chassis can just "absorb" that momentum... if its a toy car, then just experiment
+bruno baumanis the purpose of the diode is to bleed off the reversing power spike that is induced in the coil when the magnetic field collapses when power is disconnected. You would want to prevent the arcing on the switch contacts in a higher power application such as this otherwise after a few hundred times of switching it off the contacts will likely be disintegrated and the switch will fail. A 1.5 volt AA battery powered electromagnet will have an insignificant kickback effect and the arc will be so small when you disconnect the power that it will not harm a switch. You can make a simple electromagnet with a steel rod and insulated copper wire and power it with a AA battery. Use several feet of wire and you should be able to lift small steel objects. There are many videos on RUclips.
Hi, I am glad I came accross your video. I actually get there from google and what I am deeply curious to know about is the amount of Maximum Voltage my 3.5kg Air Core Electromagnet can bear. The Core of the Solenoid is 120mm in heigth and 13inches in Diameter. It core is 47mm wide and 130mm long. I used 0.31mm thick enameled copper wire to make it and after winding it reads 1.4KOhms Please may I know the maximum Voltage to apply to it in other not to get it burnt? How do I calculate that Sir?
+janet edwards sorry for the late reply, unfortunately I don't think I can answer your question and be 100% certain I am correct so will leave that to someone more qualified. I do not work with high voltage.
Hello sir. I am doing this as a science project with my 5th grade class. Can you explain how to pick the correct diode for this and how that diode is wired into the circuit? Thank-you
The diode is not necessary to do an electromagnet demonstration. It's purpose is to bleed off the reversing high voltage spike every time power is switched off to the magnet coil otherwise the spike will jump the contacts and make that bright blue spark. Any diode will work, about 1/2 watt. Connect it in reverse across the coil as shown in the schematic at 2:40. Once this diode is in the circuit you cannot hook up the electromagnet "backwards" to reverse the polarity or it will short and burn out the diode. It only works in one direction.
RLZerr Thank-you! Thats very helpful. One other quick thing... When you connect the magnet wire to the cable wire, do you use any special connector since one is so much thicker than the other.
I used common spade connectors and PVC fittings so the coil can be disconnected. With 13 gauge magnet wire crimping on the connectors is no problem. Smaller wire will be more fragile
i'm an avg mechanical student..I want to make an hallow electromagnet to be connected for bike battery.. I want to which metal has to be selected for making that also which wire to be selected..i want to produce 2000 gauss.. Plzz help ur follower..
the power (electricity) supplied was 12 volts, can I make it for 3 volt? then which coil should i used and also tell me about number of coils and other necessary tips . please
the power (electricity) supplied was 12 volts, can I make it for 3 volt? then which coil should i used and also tell me about number of coils and other necessary tips . please
Наука
Post more similar videos & your ideas. Great
If anyone is planning on building a similar device, you'll get much better performance if you also surround the outside of the coil with a nice thick jacket of iron or steel, leaving only the "active" end uncovered, because this will trap and concentrate all the flux lines that are lost in this setup out of the sides and back of the magnet.
+Ryan Willis coming up with the perfect materials for this without spending an arm and a leg reminds me of a movie scene in Back to the Future where Doc Brown said to Marty McFly - "I'm sure in 1985 plutonium is available in every corner drug store but here in 1955 it's a little hard to come by"
RLZerr Understood.
Love the idea. Help us understand what can be purchased exactly to make a sweet relatively cheap electromagnet i'm all ears.
any insulated wire will work, but keep in mind magnets may get hot depending on how long the wire is compared to the voltage and current and if the insulation melts or burns it will short out. Magnet wire is designed to withstand heating and has very thin insulation so you can get many windings in the space of the coil
If you can get a core made from soft iron, laminated, such as in a transformer core, it would work better. I've never been able to take apart a transformer without destroying it. the idea here is to build a strong electromagnet out of easily obtainable materials.
great video, music gets kinda trippy, love it.
You know some of the poor people from other countries are forced to make up their own electric products you should check out some of their videos and their hacks because they are really smart people.😊
it is a man made island of sand dredged from the inter-coastal waterway. originally suspected people were burning pallets for bonfires but now believe that people accumulated their destroyed docks here after the last 2 hurricanes and burned the boards and left all the nails and other hardware. There is a lot of green ash in the sand which I believe is what remains of the chromated copper arsenate wood treatment.
The longest I have tested this magnet at 100% duty was about 4 minutes. I do not have a thermometer to accurately measure the surface temperature but it has never become too hot to hold in my hand. If 12V @ 15 amps was left on it continuously the heat will continue to build up until a balance is achieved where the outer surface cools at the same rate the coil generates the heat. Suspect it will be well below 100C in open air. There's a scientific formula for this somewhere out there
imagine if you had ferrofluid
itd be trippy bro
very cool. u should consider going on that show shark tank and sell these things to construction workers
Could I use this to jam radio signals or even break devices. Does it still run on a 2.45Ghz frequency
depends on the battery. Most car batteries are about 45 amp hours. This magnet draws about 14 amps so roughly 3 hours continuous.
Hey there! If you still make videos, Id like to see how you wired up the momentary switch and how it looks like without the pvc pipe for reference. Tysm, trying to make one myself
I guess...
*puts on glasses*
he nailed it.
YYYYYYYYYEEEEEEEEEEEEEAAAAAAAAAAAAAAAHHHHHHHH!!!!!
It sounds like you need an industrial magnet for a scrap yard crane
Why did that beach have so many nails?
We believe that after hurricanes the wood from destroyed docks were piled up there and burned. The islands are man made built from dredge tailings ffrom digging out the inter-coastal waterway.
Very nice! Thank you, Sir!
magnet wire is solid wire, usually copper, with a very thin coating of enamel insulation. Used for making transformers, motor windings, inductors, electromagnets, solenoid windings, etc.
Thank you, this video is what i have been looking for, best one on youtube.
WOW! Genius...
PS: I'd hate being at that beach ;-p
does the size of the wire determine the magnetic capabilities
Oh okay, this is a great video!
the steel pipe nipple core retains some magnetism and very small object may continue to stick but it is minimal
I tested it with a sledgehammer (only thick solid steel object I had) tied to a 5 gallon pail that water could be added to increase weight until it broke loose which was at 34 lbs.
Thanks basically trying to remove metal and nails from the burn pit cheap as possible
How long can it stay energized?
Very nice vid bro.!!
Cool to make but for work i think its better to just get a piece of iron magnetized. I was trying this on a smaller scale trying to magnetize a nail. I used 30 feet of 30 gauge magnet wire with a nine volt and no real strength. Any tips?
hard to find magnet wire at my place..can use another wire beside magnet wire?
Hi, i just wanna ask why the core must be solid, I mean why do u need to put the nails in? Is there a specific reason? Btw, awesome video! :)
I need a 20 Tesla electromagnetic field and have zero plans to use cryogenics.
I can build the coil, no problem.
So I'm trying to think of some novel ways to avoid the wire melting when I switch power on.
(Backstory -- I'm building a high-field NMR (nuclear magnetic resonance) device to test the outcome of aligning, then
oscillating 1/2 spin atoms for the crew compartment in a ufo build-out).
If you have any ideas on avoiding the use of cryogenics to keep wires cool, please let me know -- thanks in advance.
.
..
.
A couple ways you might be able to get magnet wire for much less than the cost of new material from an electrical supplier. Ebay. You can get anything there and often get great deals. Check your local scrap yards regularly. If they will sell to the public and let you search the bins you might get lucky and find what you need at just over scrap value. But be cautious. Old mag wire might have brittle or damaged enamel insulation.
How much weight can that magnet carrie?
I'm not an electrical engineer so could not answer that one accurately. Although I have seen diagrams of industrial scrap yard magnets and one showed multiple coils inside.
I don't think you could build an electromagnet out of common materials that did not generate any heat. It's just the way it is. I discussed this project with a friend who is an electrical engineer to get an idea of the best design and he rattled off some ohms law formulas and we came to the conclusion with this type coil and core at 12v about 600 ft of magnet wire would be optimum.
can we do this experiment with mini inverter 3 CFL 45W and what is the diameter of the copper wire and how many turns we have to wind the coil
oh boy, do not drop that hammer on your foot
how heavy can it lift ??
did you use steel for the core? i thought it was only possible with iron?
for thicker wire use higher current. no need to buy more thinner wire
How much of its weight a magnetised iron can lift ?
I inherited a farm with a bunch of old burn piles and rusted junk piles and this would be great for me. I am good at building and fixing things but I have never messed around with things electric. One of the things that intimidates me on your video is the part where you talk about ohms, watts and whatnot. It's way too much like math, and I just barely got through that in community college. Anyway, is this a dangerous project to attempt without any electric knowledge, or should I try to find an electrician to make one for me?
Thanks for the great video. I would give you two thumbs up but they only count one!
+William Mayer An electromagnet is a very simple device. Making an efficient electromagnet might require some of that confusing math. As long as your not messing with high voltage or directly shorting out a car battery this is relatively safe. Hopefully I don't need a legal disclaimer?
thanks and glad I could help.
Do I have to use "MAGNET WIRE" or just regular copper wire. What IS magnet wire?
Will it drain the battery and how fast?
how hot does it get?
Yes, this one holds up to 34 lbs. Maybe more if it was a solid block of steel
what are all of the materials and what do u suggest I can take away or make different to make it cheaper
the magnet wire is the most expensive part. Try eBay you might be able to pick up a large roll for not much more than the copper value
wow, you got about 1 buck of worth of iron on that magnet! That's free iron ore , which is quoted at major trading exchanges at 140 bucks per metric ton (today's price). This is free money lying on the beach. (a metric ton of iron is about 8 times smaller than a metric ton of water , considering the density)
I did recycle the scrap iron and remember it was 10 cents per lb. then. It's much lower now.
nesesito informacion de k materiales nesesioo para aser ese electro iman porfavor tengo k entregar uno para este sabadooo y no c k matereiales lleva me podran ayudar
can it be powered with a different battery?
sir, how many turns of magnetic wire do I need if I want to carry 20lbs.
the power (electricity) supplied was 12 volts, can I make it for 3 volt? then which coil should i used and also tell me about number of coils and other necessary tips . please
Can this possibly lift a 10 pound weight??
how much does this way?
How much power does it take?
and how much weight can it carry?
great thanks and cheers !!,,
What can be the highest Flux density achieved with this magnet while on 13 amp?!
in other words how do you prevent heat?
Muito bom, vou fazer um igual.
lol never been to rusty nail beach, but interesting video.
I mean... Could it cach on fire?
wouldn't the steel become magnetized? I thought it was necessary to use soft iron?
Thank you ^^
Hey, sup man, im kinda in need for a science project. Just wonderin if you could send me a message or something on how to build this, you know, like instructions, and i´d really appreciate it. Oh, and i already liked and subscribed. ;)
what is the number of turns that i will need to repel 2 fast cars
About 9999999999999999, and they would crash
It would be just as if they both crashed, but to an invisible barrier as no chassis can just "absorb" that momentum... if its a toy car, then just experiment
so good
would there be a possible way for you to contact me to talk about an idea I have
the strength of the electomagnet is limited to 2T which is dictated by the core material.
step #1 to build my railgun
really side stepped that question, didn't ya?
you can make one for free if you have an old microwave just use the secondary coil from the transformer and a AA battery and you can lift over 100 lbs
does it heat up ?
khaled alaa it only gets warm after several minutes of near constant use
can i just wind up a coil around a metal rod and use a AA battery and not use the diode?
please somone tell me
+bruno baumanis the purpose of the diode is to bleed off the reversing power spike that is induced in the coil when the magnetic field collapses when power is disconnected. You would want to prevent the arcing on the switch contacts in a higher power application such as this otherwise after a few hundred times of switching it off the contacts will likely be disintegrated and the switch will fail. A 1.5 volt AA battery powered electromagnet will have an insignificant kickback effect and the arc will be so small when you disconnect the power that it will not harm a switch. You can make a simple electromagnet with a steel rod and insulated copper wire and power it with a AA battery. Use several feet of wire and you should be able to lift small steel objects. There are many videos on RUclips.
if we increase the voltage will it increase the distance from which we can attract things??????????????
Prabhu Jack obviously
Hi,
I am glad I came accross your video.
I actually get there from google and what I am deeply curious to know about is the amount of Maximum Voltage my 3.5kg Air Core Electromagnet can bear.
The Core of the Solenoid is 120mm in heigth and 13inches in Diameter. It core is 47mm wide and 130mm long.
I used 0.31mm thick enameled copper wire to make it and after winding it reads 1.4KOhms
Please may I know the maximum Voltage to apply to it in other not to get it burnt?
How do I calculate that Sir?
+janet edwards sorry for the late reply, unfortunately I don't think I can answer your question and be 100% certain I am correct so will leave that to someone more qualified. I do not work with high voltage.
I hope you cleaned up all those rusty nails that was ridicules!
If I remember right the grand total was 57 lbs of nails and other steel. Went to scrap yard $5.70 cash so in a way it was "buried treasure"
Hello sir. I am doing this as a science project with my 5th grade class. Can you explain how to pick the correct diode for this and how that diode is wired into the circuit? Thank-you
The diode is not necessary to do an electromagnet demonstration. It's purpose is to bleed off the reversing high voltage spike every time power is switched off to the magnet coil otherwise the spike will jump the contacts and make that bright blue spark. Any diode will work, about 1/2 watt. Connect it in reverse across the coil as shown in the schematic at 2:40. Once this diode is in the circuit you cannot hook up the electromagnet "backwards" to reverse the polarity or it will short and burn out the diode. It only works in one direction.
RLZerr Thank-you! Thats very helpful. One other quick thing... When you connect the magnet wire to the cable wire, do you use any special connector since one is so much thicker than the other.
I used common spade connectors and PVC fittings so the coil can be disconnected. With 13 gauge magnet wire crimping on the connectors is no problem. Smaller wire will be more fragile
Me like, Me like!!!
thanks
நன்றி
Website for calculations -
www.sengpielaudio.com/calculator-ohm.htm
i'm an avg mechanical student..I want to make an hallow electromagnet to be connected for bike battery..
I want to which metal has to be selected for making that also which wire to be selected..i want to produce 2000 gauss..
Plzz help ur follower..
copper is not magnetic, nor is zinc
electromagnet project
try this one its been done before
energy equals life dot com
why the fuck is there so much nails on that beach?>?????
no make an winding electromagnetic train
not if it is soft steel
Could I cachews on fire?
I checked a lot of handbooks with woodworking plans. Instructions from woodprix are the best I think.
what up
Love that shitty techno music!
That thing is also highly effective for removing beautifull women of the beach.
the power (electricity) supplied was 12 volts, can I make it for 3 volt? then which coil should i used and also tell me about number of coils and other necessary tips . please
the power (electricity) supplied was 12 volts, can I make it for 3 volt? then which coil should i used and also tell me about number of coils and other necessary tips . please