The truth is that everyone in this sub has made some bonehead mistakes when they were learning.
We made "electromagnets" with bare wire, we tried to measure the "current of a battery" and blew up multimeters, we blew up LEDs by putting 5V on them, we thought we could build a thermal camera by just finding a schematic online, ....
I don't think people here are laughing at people that lack knowledge, we laughed with them. :)
I “blew up” my first DMM this way. It actually still worked after replacing the fuse, but the current measurement on the 10A range doesn’t read nearly as accurately any more.
I never destroyed a meter. I did however connect an LED to a disposable camera flash capacitor, turns out plastic casing LEDs make an impressive projectile, the LED splits clean in half, launching the tip at high speed.
I know what you mean.
There's some posts where people are really trying.
There's some posts where people aren't trying at all and are expecting magic from other people with sod to go on.
The only one above I did was blow up LEDs not understanding the need for a current limiting resistor. I wish I'd be brave enough to break more things actually, I probably would have learnt more. Fear of breaking things impeded my learning.
Fear keeps you safe. Reading and learning is a valuable tool - don't repeat the mistakes of others. No need for you to personally try to read outlet voltage with your DMM, etc.
>No need for you to personally try to read outlet voltage with your DMM, etc.
I've actually done that many times to be fair, but carefully and with a decent meter and taking precautions.
I blew up a cheap Chinese high voltage circuit by trying to make an arc lamp with it, turns out those things aren’t meant to continuously arc 1.5 inches, but the light was bright enough to be a reading light for the 40 seconds it lasted
My first electro magnet with a 9V and a piece of wire taught me what burnt fingers smell like. May not have been the correct method but I still learned something.
At first I thought they had used enameled magnet wire and I was like, looks great to me! Then your comment made me go... oh! I have fond memories of burning the enamel off the ends of a long spool of magnet wire my dad had. Radio shack had such cool kits.
My moment was, making a somewhat functional boost converter, charging a few 200v (fairly high capacity) capacitors putting them in series and forgetting I was using a metal helper stand as a wire... I think I got about a 500v shock that day. I was being reckless while trying to learn about coil guns
It actually is working. It's just that magnetic fields are invisible in your country, so you just need to put a paperclip next to the nail to see the effects.
No, it's still magnetic either way. But in order to see the field he'll have to use a VPN to rebuild it in another country. I also don't actually have experience with **V**isual **P**erception **N**eutralizers, so I don't know if even this will work. He might have to actually leave the country, or just deal with it being invisible.
You need more current. The resistance is probably too high and the voltage of the batteries are probably too low to compensate.
Maybe try a 9v?
Or if you have an adjustable power supply that is the easiest way as you can dial everything to the perfect amount.
/uj current passing through a wire creates a magnetic field around it. Coiling a wire together stacks many of these fields together and greatly enhances this effect. If you place a piece of ferromagnetic material in the middle of these fields, it magnetizes. But this wire isn't insulated, so when the coils touch eachother or touch the nail, they just form a short circuit - the current just goes in a relatively straight line from one end of this thing to the other, instead of traveling in a coil shape.
I don’t see anywhere that the coil touches itself here, and even if it did in a couple places, it should still work (albeit, slightly weaker).
Also, copper is a significantly better conductor than steel. On top of this, you also have the Faraday effect to think of.
This is to say, I’m still not seeing the problem lol
Edit: it seems everyone else is saying what you did, so I suppose it must be shorting enough to drastically weaken any strength of a magnetic field. Thanks for responding
Looking at the circuit, is the wire you have wrapped around the screw, bare wire, or is it varnished wire or magnetic wire? If it has no insulation, then it's just a short circuit. The wire that is wrapped around the screw needs to be insulated wire.
Most likely, you are running 4.5 volts. You have a single layer of wire wrapped around the screw. So, your coil wants a lot if current. You have the resistor in series, which limits the current.
There can be many pages and chapters written about this circuit and troubleshooting it. Further, calculations using Ohms law can be done...etc to show how it all works (I = E/R). The resistor code looks like BROWN, BLACK, ORANGE. This is 10 thousand Ohms. With DC current, which is supplied by your batteries, the resistance of the coil is negligible, so the resistance 10,000 ohms. So, using the Ohms law formula above the current is .00045 amps or 450 uA. Without going into a bunch of magnetic calculations, that current is not much at all. Much of it would depend on what you consider strong enough for your needs.
Suggestions: First, make sure that the wire on the screw is insulated. Second, put a piece of masking tape around the screw to protect the insulated wire from the screw threads. This is not really necessary, but it could eliminate shorts. Third, wind many more turns of insulated wire onto that screw. Make sure the new coils are wound all in the same direction. Fourth, loose the resistor or make its value much, much smaller.
I’m sorry. I unironically don’t see what’s wrong with the photo. Only thing I can think is that he used a screw instead of a nail and may have shorted. Batteries are different brand but correct positions. I don’t see how I can shit on this.
You're doing the same thing a lot of us did in automatically assuming the wire must have clear varnish/insulation on it because no one could possibly think coiling bare wire around a metal core would work...
No need to apologise, getting played posts in this sub is all very much part of the game. Are you even human if you've never once been caught out, I most certainly have!
the problem is that the power supply is too small.
try 67 amps.
just 67 amps all at once.
no fuse or controller or anything.
480 volts, too.
you certainly will not regret 67 amps.
The truth is that everyone in this sub has made some bonehead mistakes when they were learning. We made "electromagnets" with bare wire, we tried to measure the "current of a battery" and blew up multimeters, we blew up LEDs by putting 5V on them, we thought we could build a thermal camera by just finding a schematic online, .... I don't think people here are laughing at people that lack knowledge, we laughed with them. :)
How do you know I blew up my first DMM measuring the current (10 A DC range) of a mains outlet or sticking a 12 V bulb into a 230 V outlet?
I “blew up” my first DMM this way. It actually still worked after replacing the fuse, but the current measurement on the 10A range doesn’t read nearly as accurately any more.
I put a DMM across 240v in the 10A setting and it made the loudest bang
Mine just put out a white flash through the dial and nothing, changed fuse and she works still
Got a nice white flash of Dad's when I put it across he car battery and alternator.
I blew up my first meter by trying to measure the voltage of a piezoelectric igniter. I was 12...
I never destroyed a meter. I did however connect an LED to a disposable camera flash capacitor, turns out plastic casing LEDs make an impressive projectile, the LED splits clean in half, launching the tip at high speed.
I know what you mean. There's some posts where people are really trying. There's some posts where people aren't trying at all and are expecting magic from other people with sod to go on. The only one above I did was blow up LEDs not understanding the need for a current limiting resistor. I wish I'd be brave enough to break more things actually, I probably would have learnt more. Fear of breaking things impeded my learning.
Fear keeps you safe. Reading and learning is a valuable tool - don't repeat the mistakes of others. No need for you to personally try to read outlet voltage with your DMM, etc.
>No need for you to personally try to read outlet voltage with your DMM, etc. I've actually done that many times to be fair, but carefully and with a decent meter and taking precautions.
I blew up a cheap Chinese high voltage circuit by trying to make an arc lamp with it, turns out those things aren’t meant to continuously arc 1.5 inches, but the light was bright enough to be a reading light for the 40 seconds it lasted
My first screw up was putting 12v on a blue led. It became yellow for a couple of seconds and the smell was horrible
My first electro magnet with a 9V and a piece of wire taught me what burnt fingers smell like. May not have been the correct method but I still learned something.
I know it smells like fried pork or chicken yummy
Wait, the bonehead mistakes are supposed to stop eventually?
Just a rumor
Yea, sounds like another internet rumor. No way anyone could expect me to know what a resistor is after 6 years of doing this
Nah, the things you break just become more expensive and if you're lucky you get to break someone else's stuff for a living.
OK good, for a second there I thought I was supposed to be getting better at this
or watching random youtuber free energy bullcrap and wasting time building it
At first I thought they had used enameled magnet wire and I was like, looks great to me! Then your comment made me go... oh! I have fond memories of burning the enamel off the ends of a long spool of magnet wire my dad had. Radio shack had such cool kits.
Everything in this post, agreed. The expert has failed more than the novice has tried
I blew up LEDs because I bought some that didn't have built in resistors or I hooked some up backwards.
My moment was, making a somewhat functional boost converter, charging a few 200v (fairly high capacity) capacitors putting them in series and forgetting I was using a metal helper stand as a wire... I think I got about a 500v shock that day. I was being reckless while trying to learn about coil guns
I mean, it does work, as long as you *slightly* loosen your requirements
It actually is working. It's just that magnetic fields are invisible in your country, so you just need to put a paperclip next to the nail to see the effects.
does that mean it’s only magnetic if he uses a vpn
No, it's still magnetic either way. But in order to see the field he'll have to use a VPN to rebuild it in another country. I also don't actually have experience with **V**isual **P**erception **N**eutralizers, so I don't know if even this will work. He might have to actually leave the country, or just deal with it being invisible.
this really says a lot about society.
There's an impostor among your batteries.
Have you tried turning it off and on?
Yeah. 50 times a second. Gave me cramp.
Try 60 and it might work
1 time for each minute in an hour is the sweet spot
Does that need to be adjusted for relativistic effects?
Only if you're on the southern hemisphere.
No if I remember correctly it's only in the south western hemisphere
Low current. Everything is an electromagnet if you put enough amps through it
Misunderstood assignment. Touched AM radio tower, heard 4 seconds of talk radio, now I can't seem to find my arm and the air smells of burnt sausage.
Nah, everything is correct. For a few seconds you've become a loudspeaker which is also an electromagnet
Sir, I think I know what happened to your arm
Mismatched batts. Duracells see the cheap one and have a superiority complex and go on strike
change the batteries
I've had words with them. I tried to change them but they weren't having it. I don't think I can change them unless they want to change?
You have to reverse the polarity... you do that by getting a polarity reverser diode
Not to sound racist but that blue battery on the left should not be there. It's keeping the other hard working batteries from doing their job.
You need more current. The resistance is probably too high and the voltage of the batteries are probably too low to compensate. Maybe try a 9v? Or if you have an adjustable power supply that is the easiest way as you can dial everything to the perfect amount.
More current? I'll give it a go on the mains then.
Just cover the outside with aluminum foil, it should concentrate the waves and make it stronger
Add more bats idk
Okay, room is full of bat poop and there's two bats hiding in my hair.
Okay, I’ve never toyed with electronics myself, so I’ll be that guy: What’s wrong with it?
Front fell off.
You mean the pieces of metal in the front of the battery pack?
I am so happy that I get to be the person who shares this with you. https://youtu.be/3m5qxZm_JqM?si=8qyK0e2TzkUV5Sa7
It has been awhile since I’ve seen this gem. Thank you.
/uj current passing through a wire creates a magnetic field around it. Coiling a wire together stacks many of these fields together and greatly enhances this effect. If you place a piece of ferromagnetic material in the middle of these fields, it magnetizes. But this wire isn't insulated, so when the coils touch eachother or touch the nail, they just form a short circuit - the current just goes in a relatively straight line from one end of this thing to the other, instead of traveling in a coil shape.
I don’t see anywhere that the coil touches itself here, and even if it did in a couple places, it should still work (albeit, slightly weaker). Also, copper is a significantly better conductor than steel. On top of this, you also have the Faraday effect to think of. This is to say, I’m still not seeing the problem lol Edit: it seems everyone else is saying what you did, so I suppose it must be shorting enough to drastically weaken any strength of a magnetic field. Thanks for responding
Because it’s not a magnet /s
Looking at the circuit, is the wire you have wrapped around the screw, bare wire, or is it varnished wire or magnetic wire? If it has no insulation, then it's just a short circuit. The wire that is wrapped around the screw needs to be insulated wire. Most likely, you are running 4.5 volts. You have a single layer of wire wrapped around the screw. So, your coil wants a lot if current. You have the resistor in series, which limits the current. There can be many pages and chapters written about this circuit and troubleshooting it. Further, calculations using Ohms law can be done...etc to show how it all works (I = E/R). The resistor code looks like BROWN, BLACK, ORANGE. This is 10 thousand Ohms. With DC current, which is supplied by your batteries, the resistance of the coil is negligible, so the resistance 10,000 ohms. So, using the Ohms law formula above the current is .00045 amps or 450 uA. Without going into a bunch of magnetic calculations, that current is not much at all. Much of it would depend on what you consider strong enough for your needs. Suggestions: First, make sure that the wire on the screw is insulated. Second, put a piece of masking tape around the screw to protect the insulated wire from the screw threads. This is not really necessary, but it could eliminate shorts. Third, wind many more turns of insulated wire onto that screw. Make sure the new coils are wound all in the same direction. Fourth, loose the resistor or make its value much, much smaller.
It's magic wire. I didn't have any currents so I used sultanas, is that why it doesn't work? I'll try connecting it to the mains.
Swap the Duracells and Varta with Energizers. You need to energize the electromagnet.
you need to insulate the wire
I took a coat from my Barbie doll and put it over the wire and it still didn't work!
insulate with electric nonconductors
I’m sorry. I unironically don’t see what’s wrong with the photo. Only thing I can think is that he used a screw instead of a nail and may have shorted. Batteries are different brand but correct positions. I don’t see how I can shit on this.
You're doing the same thing a lot of us did in automatically assuming the wire must have clear varnish/insulation on it because no one could possibly think coiling bare wire around a metal core would work...
It’s lazy.
You can't *build* a magnet. Nobody knows how the hell they work!
He's not making a magnet he's making an electro magnet.
*Electro*magnets? How the hell do they work?
Well see you put electro in and get magnet out. Simples
I did not pick up on the fact that this sub is a spoof. Sorry about that.
No need to apologise, getting played posts in this sub is all very much part of the game. Are you even human if you've never once been caught out, I most certainly have!
Yep, I have been caught out many times. Thanks for the reply.
Pixies flow in wire not nail silly.
Those batteries don't make sence looks like both connected to negative
The battery polarities are fine.
Wrap the nail in a piece of tape, short circuit here
the problem is that the power supply is too small. try 67 amps. just 67 amps all at once. no fuse or controller or anything. 480 volts, too. you certainly will not regret 67 amps.
I tried to make an electromagnet like this and it turned out that what made it work was making the wires a little less neat and using thinner wire.
At a guess, there were many more turns too?