Simple generator
amasci.com Build this ultra-simple AC electric generator from magnets, wire, and cardboard. (And a big nail!) Light a small lightbulb, or flash a red LED. This demonstrates how generators work. Now if you want a more useful device, use a small DC motor as a generator, since it has much better magnetics design. All motors are generators. Figure out how to spin a motor’s shaft, and you can make a small powerful generator. Or… figure out how to convert the cardboard generator into a motor …
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> multimeter?
Yep. It puts out about half a volt AC. So set your meter to AC volts, lowest range.
Cheap multimeters can be found at Harbor Freight Tools. Usually they’re $8, but sometimes they’re on sale for $3
>get a dc motor
Guess why kids should want to build a lemon battery. Guess why we should want to make our own light bulb, or build an Arduino project, or set up a home physics lab.
Would you be able to hook this up to a multimeter? Thanks.
See the website section called “debugging?”
Usually the problem is that the magnets turn too slow. They have to really whiz like a blur. They cannot rub the cardboard at all, or they slow down. Try it in darkness so any light is easy to see.
i tried every thing nd bought the things out of radio shack as u told me my project is due tomorow the light bulb the magnets the wire every thing can u tell me wat to do can u post a phone number plz
All that expense just to light up a LED!?
why don’t you get a dc motor from a scrap yard and spin it !?
Don’t watch the video. Instead, follow the website instructions.
how do I connect the bulb?
Imagine this input:
Two wheels, one with magnets, one with coils. There are 6 magnets, 3 with the positive pole and three with the negative pole arranged + – + – + – in a circle evenly apart. The other side has 6 coils spaced evenly to line up with the magnets. If you had two wires, one coming from the magnets that would be first lined up with the positive, and the next from the negative then switching through rotation, would you get an alternating current?
Now what would be cool is attaching this to a solar powered steam engine! Could you get the revs to amount to enough to charge a battery, you think? (14v)
> use a old motor?
For the simplest possible home-built generator, a motor is not home built, and it’s not simple.
For practical generators (not school science fair,) old motors work much better. Cheap wind generators usually use a DC replacement motor from a treadmill.
can’t you just use a old motor?
great work, dude!
do you know how to build a simple steam engine, too?
(others on youtube are too much sophisticated)
> deep cycle batteries
This one only puts out 1volt of AC. Batteries need 14v of DC.
Generators don’t make electricity. Wires are already full of movable electrons. A moving magnet is an electricity pump. If it moves past the same wire 200 times, you get two hundred times higher pumping pressure. That’s why there’s a coil.
> have enough wire
Yep, just twist the ends together, but first clean the red varnish off. Use fine sandpaper, get rid of every bit.
hey if i don’t have enough wire can i just connect more the the one i’m already using?
Now a video of how to connect this (or a larger version) to deep cycle batteries for charging would be interesting.. i just want to know how Magnets and wire makes electricity?
hmm , after u say that , im thinking gears ? ,,,/ and or pullys :S .. what was i lookin for on that site ? ,, im there … just confused not really a search feature lol
> me crakning it
That would work. But car batteries work better than caps. And you need a better generator (mine only makes one volt.) See the homebuild wind turbine generators at otherpower com website. They do it with large supermagnets.
To run an amp at 20 watts for an hour, you have to pedal a bicycle hard for ten minutes. Hand cranks are too weak, you need leg muscles to produce major wattage.
well i have no idea what that is , but i will sure take a look and tell u my opinion but do u think at all what im saying is possible …. lol
like theory wise ? ?
Go look at all the weird energy machines at rexresearch com. Many inventors say they got them to work. Nobody else has succeeded though. Many eyewitnesses saw the Clem hydraulic engine working, and the Puharich electroytic cell. If you build one, post the video!
hmm , so why is that , what if i gave it a min to charge ( me crakning it ) then allowed the cap to take charge ? …. like i could get an amp no ? . , say a car audio amp , and rewire the inside to just straight power no music , in to the cap ? just lots of questions from me
Suppose you make a leather belt on rollers with a crank. Can you connect one roller to gears, then connect the gears to the crank, so it runs itself? Nope. If your belt was made of electrons, still no magic.
A bicycle generator can easily put out 50 watts. To run an entire house needs about ten times more than that, ten people on bikes (charging a battery bank.) Or get rid of the bikes, and run your generator with a 1HP gasoline engine.
u dont even pay hydro DO U lol … im joking , but if not even to power the house lol , watch my vid will be me in my basement with this hugeee generator home made hahah powering my house , i bet u got somethin like that tho lol
ok ok .. . so i have an ac to dc converter , so saying i do that , and power it in to the cap . wouldnt i be able to controll a little motor off of the power to crank for me ? … with say a switch to turn the power on and off … im thinking on like getting some sort of amp maybe inbetween lol this is a first time kinda think for me so im just wondering … my goal is to power a clock radio , kinda what u got but large scaler lol
lemmie no some odeas , im just curious , maybe vids will come