Easy Homemade Electromagnets
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- Опубликовано: 29 сен 2024
- In this video I explain how to make basic electromagnets out of common materials. See the links below to buy these materials. If you have access to a microwave oven transformer, you can make an strong electromagnet easily. (DO YOUR RESEARCH BECAUSE DISASSEMBLING A MICROWAVE CAN BE VERY DANGEROUS) If not, use a solid core and regular wire to make one. Hope you enjoy the video. Please leave any comments or questions below.
Microwave Transformer: amzn.to/3E9P6iG
Magnet Wire (18AWG): amzn.to/3nslhTG
Magnet Wire (14AWG): amzn.to/3EfdTSj
2-Wire Conductor: (18AWG): amzn.to/30WDYHI
Iron Core: amzn.to/3jvcUFG
12V SLA Battery: amzn.to/3nsFf0L 
Наука
Use a switch to avoid that spark and having to handle it every time
If you use wood wedges make sure its completely dry. Insert the wood then flip it up where the wood is parralel to the ground get yourself some clamps big enough to hold the tip of the wood to the face on the opposite side. Use 2 or 3 clamps for best results, then get a spray bottle fill it with HOT water and start spraying the wood wedges evenly as it absorbes the wood will expand and the clamps holding will keep pulling tword the device once the wood expands enough itll crack at the weakest point (the sawed down weld) and the top peice comes right off plus you get the added benefit of feeling cool knowing you used the same tech to pry off the top, as the ancient Egyptians did to evenly break rock thus creating the stones used for building the pyramids xD its a win win really lol
App apne coil ka video bna dijiye please 🙏🏻🥺🥺
You wind one row then jump to start and go same way. You waste potential of your magnet by a lot the way you wind
Do you have some calculation formulas for the electromagnets? How the wire thickness and the area of the core affect the lifting force? Great video! I have an electromagnet with a lifting force of 40 kg (88.2 pounds) and it's really fun. I'm making a simple linear vibrating feeder with it. :) It's really cool - I love electromagnets.
Always wrap the same direction going backwards changes the polarity and then thay cancel each other out
Wait, no load resistor? How are you stopping and regulating the amps that flow? If you dont load resistor the windings will melt in no time......... I have seen these videos all over RUclips and if you make one plug it in and wait for it........
That is a good point. I agree a load resistor in series would be a good idea to reduce the current flow and therefore heat.
@@ericinventor I finally found someone with the same interests as me. Your video reminds me of an American movie called Breaking Bad, in which there is a scene where drug dealers use electromagnets to destroy laptops in the police evidence room. Is it feasible? Or false, and are you interested in ENP?
5:32 I'm confused, why would you reverse the windings between layers. That would cancel out the electromagnetic field of the first layer.
The reason is to keep winding uniform thickness on each level as you layer them. The current going through the wires will still go in one direction. Visualize it as a wire from battery negative terminal, then in your mind run that wire from battery to every room in your house around every piece of furniture and running in every possible way then return to the battery holding wire in your hand. Then you know no matter what that the wire in your hand is the same so the flow of electrons and the magnet field it creates are always the same direction. Flowing from one terminal through the wire to the other other terminal to create a continual loop. Hope it helps.
Hey nice 👍 but how you do the north pole and the south pole show from the source of energy to the microwave.
cores are laminated to reduce heat buildup by limiting Eddy currents. Lacquer is commonly painted on and used as an insulating layer between cores and on wires also. Have fun.
Eddy currents are not a consideration with DC.
Since I was buying a lot of these microwaves from walmart down in Florida it was easier to buy a small electric 3 inch grinder from harbor freight and grind the weld.
Put the oven back together put back in box an tape it up. Tell walmart it would not fit in the microwave spot over the stove.
Put a car headlight in series with the electro- magnet and it will limit the current. The headlite will draw a few amps but won't cause coil to heat up enough to burn out the coil.
Please upload a video how to make thor hammer with this transformer
I am going to be making a new motor design. Any suggestion on how to make the most powerful electromagnet in a 3"package will be appreciated. Thanks.
Try to get a bolt and just keep wrapping copper wire around a lot
Make it wider with more surface area
the coil you made with the two strand wire is xalled a bifilar coil. it's one of Tesla's coils. good job btw.
Yo i made a magnet using this video, I made one of the other ones you made with the double stranded wire, came out perfect. thanks.
Where did you get the speaker/electrical wire from in the second example?
When making a core out of plates you need to insulate each
plate ..
That's only if you plan to use it with AC. Splitting the core up into laminated sheets is done to reduce eddy currents formed in the core due to the changeing magnetic field associated with AC. If all you want is an electromagnet that you will run off of DC, a solid core is just as good.
Wondeeing why secondary winding is not used if it has more turns?they typically use primary winding. I guess because it can hold up to standard house current without melting?
it is not a bad idea to tell the people that at to many turns the induction voltage after disconecting can be dangerus! its easy to build something like a igniton coil from old cars! i have start to male one magnet with 5.04mm wire at 210m lenght. 10kg copper! that will make sparks!
Has anyone tested without seething but not touching. Like a capacitor/electromagnet?
does anyone know why some electromagnets dont have an obvious negative side? like if you were to set the microwave transformer electromagnet next to another magnet or electromagnet, at what angle would they repel each other?
Hey superb work man :) it helped me to make robots
What is the magnetic field strength in Gauss?
⁷ i
Make a video in that make the electromagnet of wire please
How do you stop the electromagnet from getting hot? I bought two large ones and they get too hot to touch. I connected them to a 12v battery and after 30 minutes they are at boiling point
@Kamryn Kant Wow that sounds really convoluted. I just put metal plates on the ends to act as heat sinks and stepped down the voltage slightly. Works ok
Is it better to use thicker wire or thin wire but more turns???
Or you can use a full wave bridge rectifier
How long i can use "mikrowave" magnet? That´s only battery capacity matter?
This was an awesome watch! Thanks mate
Nice and simple and nice and SAFE, yet fun.
Cool video mate:)
You could probably use the secondary coil from the transformer to make another electromagnet. Maybe with the cut-off top as a core. So, I ask, could you just connect the two coils together electrically and make a more powerful electromagnet in the first place?
StageRightvideo
I will be posting. As well to help other enthusiasts. 🙌
Ok felicitar
Hello sir
good explanation!
Vibrator transformer
could you please show the winding being physically done?
what is the core of the cylinder magnet? Simple steel or electrical steel?
Just steel or iron
is there a way we're it doesn't hear up
excellent tutorial video...thx
I love you now
If I damage the enamel on the primary coil but the exposed parts of the wires still aren't touching will it work?
It should
I'm wondering similar thing less resistance lemme know I wanna make one 2
Spray shellac on it.
Where I am buy micro wave oven transformer
You can get one on Ebay pretty easily. Or pull one out of a microwave, but be very careful and make sure you have watched tutorials on how to do so.
Ebay
Very cool!
Do not create sparks at a battery. The gasses coming off will ignite and the battery will explode. I think the one you used was a sealed battery. But still very dangerous. Connect with a switch at a distance from the battery.
I second that.
hey man thanks for this,its a great video!!! i looked at the other contents of ur channel and they are all great and creative but ur channel is underrated plz do smthing about this
is there a way we're it doesn't heat up at all
Heat generated is proportional to the square of the current. So Heat = (I^2)k. So to reduce the heat produced you must lower the current, which in turn weakens your electromagnet.
guitar fanatic no.
Does the MOT get hot too?
Yes
Instead of the obsession on youtube for microwave transformers to build an electromagnets, i must mantion something: when you cut the welding, don't do it in the midle. Make it on "I" part to keep entire section of the core which means more power for electromagnet and entire electromagnetic field kept closed when attach a piece of metal on it.
Nelu Nicoara if i cut the core down so only the one coil fits in it would it reduce power of the electromagnet?
Why do I have to remove the secondary coil and put the primary coil back into the transformer
Bcz if u keep the secondary coil..u will create a lethal high voltage..and u will not get an electromagnet
I know but should I use the secondary coil instead the primary coil
@@Eric_875 primary ma boi