DIY Electromagnets

[waterfordjim]

I made an electromagnet with a DIARRHEA core. It worked like SHIT. :-D

[TheLinwoodboy]

if your going to do this don't touch the fucking capacitor in the microwave it could kill you if it is charged just watch out

[FrothySpoons]

Can I fill the core with iron filings? would that make a good core

[FrothySpoons]

Can I fill the core with iron filings? would that make a good core

[amruth111]

Hi, nice vid i like it and can u tell me what type, voltage and amps of battery ur using.

[fuelban]

very nice video, very good information, it has really helped me no end, thanks.

Thom in Scotland.

[geekionizado]

Did you use resistance?

[funkytripper]

Good video - i want to make a very strong magnet.

I work in the electronics industry so i have access to a dc power supply with a digital display where you can adjust the volts and amps.

i have 13 awg insulated wire and a lump of iron the size of a pack of smokes.

if i tightly wind the wire around the iron and electrical tape it up so it stays together, strip each end and connect it to dc psu .

what voltage do i set it to - i think it does 30v, not sure how many amps to use?

[sky7ark]

A note on winding? When u reach the end of turns on the spool, what do you do? I have read that going back with turns in the opposite direction will cancel out the eletromagnetic charge - so this cant be correct. Do you simply run a wire back to the begining and then start turining again? Or do u cut the wire and strat again at the begining? Cant find any place with a definitive awnser so would appreciate any help :)

[iamdonlick18]

does the electromagnet have a negative or positive charge

[wbaldwin100]

Nice video....I made one and when I hooked it up to a 6v battery, It did not work.....Solutions?? Do I need a larger battery? Please help me.

[petemysta]

On the second project, What was the second wire used for? I could not hear what you said on the video.

[alls4]

borin

[HeinzizBaKeD]

cool vid very interesting.

is that Kenny G music i hear? haha

[Jowahgay]

hi,by making coil then placing it on pvc water pipe 2" and using 12v charger , would this treat the water ? any idea of rate of coils requied?

[robotpredator8]

hi at the starting of putting the coil,how did u make it at the trying part come out with two wire for the positive and negative wire?

[lespaul49]

Is there anyone that can suggest a way to open one of these iron cores safely as in not to damage the wire?

[christmasduck2]

Great video I am new to constructing magnets, Do they overheat in use.I would be using a 12v battery.

[breakthemachine]

tnx mate. it depends what wire u use, how many turns, how long u leave it on for etc. but there is a scientific way to find out. u turn it on... if u smell burnt plastic... it overheats :)

[blulite111]

ei bro can you help me how i can increase my amperes on my 12 volt adapter without increasing the voltage i just need to increase my amperes.

[Ronnie51026]

after 5 minutes or so it begins to heat up and the heat makes the magnet "less strong"

[breakthemachine]

yeah the hotter the wire the more resistance the less amps the weaker the magnet (if it makes sence). what u want to do is put a light or whateva as a resistor so the wire does not overheat

[Richweir1]

@breakthemachine Will a meter work to keep the heat down? I built one but it gets hot fast.

[MrStemkilla]

@breakthemachine is that strong ehugh to fry electronics? useing the magnet?

[Richweir1]

@christmasduck2 Mine got real hot, real fast. In about 6 seconds it started burning the coating.

[SilusMarner]

Thanks - great tips. However, I'm curious;

1) How did you find out that coat hangers make a really good core?

2) Why do they?  I thought soft (pure) iron made the best core and I'd assumed coat hangers were steel wire...?

3) How do you hold them together for filing down and then to ensure they stay put in the spool? Just grabbing hold of a bundle doesn't cut it.

4) Would it be ok/safe for me to use a cell phone charger/transformer as a power supply, rather than a battery?

[breakthemachine]

1. i use to own a commercial laundry so i had a box of them to try. 2. i dono. 3. i use a simple plastic or nylon clip. 4. cell phone charger will give u VERY little power mate only about 4V, plus you will have very little resistance with the coil so in my opinion the charger will burn out.  good luck mate :)

[MrStemkilla]

@SilusMarner if you keep it ac and get rid of the rectifyer i bet it would be better for frying electronics

[chipsnyper06]

how do you construct your iron core? Just shove all the iron pieces together?

[breakthemachine]

exactly

[chipsnyper06]

Definitely very informative and useful. Thanks buddy

[MatthiasWuttke93]

nice video

[LordOfTheGnus]

Well it seems to me that increased voltage will increase the current in the circuit.

Btw, how well do your electromagnets repel one another? Can one levitate above another (if laterally stabilised), or are they too heavy?

[breakthemachine]

well, you want to increase current by reducing the resistance and not by increasing the voltage.(increasing the voltage will increase the power consumption). and my magnets are too heavy and not very efficient cause i built them to pass a lot of current with very little V. if you want to make strong magnet u need thin wire many many turns and higher V.

[mychemicalove]

how many volts was your power supply? if i am limited to a 6V power supply, will this electromagnet still work?

[breakthemachine]

my power supply was 12v battery. in electromagnets the voltage is less important then amps. i.e if you push 100000000V with only 0.001A through electromagnet it will be very weak. but if you manage to push 2A or 3A with 6V then you have a much stronger magnet. see, the magnetic force will depend only on the amps that you push into it. so it all depends on how many amps can you push in to your magnet with your 6V supply.

[prototype9000]

usually bifilar windings connects the end of the first to the beginning of the second coil to increase its strength and charge

[prototype9000]

most of the magnet wire i have gotten outo f microwave ovens turns out to be aluminum magnet wire

[breakthemachine]

take the transformer out, cut it open and there are two gauges of wire that you can use. one of which i have used for this video. i have had them in every microwave i have had (and i had opened over 50).

[RHEAD100]

I have watched a lot of videos on you tube.

This one rates in the top 3% for info.

Keep them coming son.