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5 Minute DIY Motor

5 Minute DIY Motor
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When I make a project, there are four things I look for.
  1. Low cost: If the project is going to cost me a million dollars (exaggerated a little bit) I won't make it. 
  2. Easily accessible materials: If the materials are impossible to find (unless it is a really, really cool project) I most likely won't attempt it.
  3. Usage: What will the project teach me? What experiences will I take away from it? If I had students, what would this teach them? 
  4. Simplicity: If the project uses 6 integrated circuits, I won't even try. Most likely, I will try to find a way to make it with a microcontroller. If nobody had done the project before with a microcontroller (unless it is really good) I won't try.
Therefore, when I found out I could make a motor without super-high tech stuff, I had to make one.

However, of all the tutorials I had looked at nobody had made it simple enough so average people could do it.

This would be great for classrooms because it teaches magnetism. My science teacher had one but he plans on getting more soon. It is small, cheap and easy.


 
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Step 1Parts You MAY Need to Purchase.

Parts You MAY Need to Purchase.
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You will need:
1 AA Battery (a AAA battery will work as well as a AA battery which will work just as well as a C battery which will work just as well as a D battery.) (I used a AA Rechargeable Battery because the motor shorts the battery and therefore will die quickly and so a rechargeable is nice.)
1 Neodymium Magnet (This is probably the only part you will need to buy unless you have an unusually large junk parts parts bin.) 
2 Safety Pins
3 Feet or 1 metre of 18 AWG Magnet Wire ( I used 18 because of its thickness and stability. It is a bit harder to work with.)

Optional:
Rubber Band
Cotton Ball

 
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41 comments
1-40 of 41next »
Feb 15, 2012. 4:50 AMMOSLAW says:
please how do i get the magnet and can i use rechargable battry
Feb 5, 2012. 7:26 AMbrahimhackman says:
thanks
Jan 17, 2012. 7:11 PM244 Jake says:
Only a commnet on your Mission Statement.

This is the longest true sentence made up of only two letters words.

If it is to be, then it is up to me to do it.


Big Jake
Dec 19, 2011. 11:11 PMcobalt420 says:
Great construction of your motor but it could use a video of it in uses. thanks,

~ Cobalt420
Dec 20, 2011. 10:26 PMcobalt420 says:
OK that's cool just a suggestion that it might make it better keep up the good work!
Dec 20, 2011. 11:40 AMiceng says:
Impressive idea to use safety pin spring end holes as a bearing for the motor shaft, congratulations on your Win .

A
Dec 18, 2011. 3:33 PMTURTLE001 says:
Could you substitute the battery for say '240v'?!
If that makes me sound like an idiot dont be to harsh im not really that great with electronics.
I just wonder would that much power make it stronger?
Dec 19, 2011. 12:07 AMTURTLE001 says:
oh ok, sorry didnt mean '240' I meant '24' !!
Typo, but yeah bigger magnet, Thanks!
Dec 19, 2011. 7:49 PMTURTLE001 says:
:)
Dec 18, 2011. 3:44 AMlesizz says:
You can also make a generator with this setup. Use the battery adapter without a battery inside and put a propeller on one of the wire ends. Supply some wind. When the coil is turned you generate electricity.
Or since you use a rechargable battery use that and you'll charge the battery when the coil is rotated. Theoretically anyway. Realistically, you probably won't generate enough voltage to charge the battery.
Dec 18, 2011. 10:02 AMlesizz says:
Actually it would be a tug-of-war between the wind-force driving the propeller/generator and the battery. Whichever provides the most torque to the rotor wins (they act in opposite directions on the rotor). This is the same situation with generators on the electrical grid. Any given generator will act as a motor if not enough energy is delivered to it from the steam or water pressure from a dam, or whatever source is being used.

But in a practical sense, you're probably right anyway, in this case. I don't think this apparatus acting as a generator would be able to overcome the force provided by the battery.
Dec 19, 2011. 4:27 AMOBISKI says:
Actually, if you used a one way bearing (like used with nitro rc cars) then it would only be able to spin one way therefore it could be a generator.

They use one way bearings in wind turbines etc.
Dec 18, 2011. 7:10 PMlis.tesla says:
the reason the safety pins are sticking to the battery is because of the magnet on the battery.
It is magnetizing the outer coating of the battery,
which is why the safety pins are sticking to it>
Think outside the box
:)
Dec 18, 2011. 8:16 PMlis.tesla says:
oh, okay
I didn't read all the comments before
Dec 18, 2011. 2:55 PMsnatr says:
I took a look at this one because from the pictures I couldn't see how you would get the poles to reverse. After thinking about it, I realized that the because of the loop, the poles reverse themselves. Nice!
But if anyone wants to build a real simple motor, they can build one with a "C" or "D" battery, a short length of wire (about twice as long as the battery), a neo-magnet (round), and a straight pin.

All they have to do is set the straight pin dead center of the neo-magnet and suspend it from the dent in the negative (or -) end of the battery (It should hang there magnetically). Then take one end of the wire and hold it into place at the battery's positive (or +) with one of the fingers from the hand you suspend it in the air with. With the other hand you very lightly touch the side of the magnet and it will start spinning. And btw, if you filp the magnet over, it will spin the other direction.
It might be a better visual if you draw a line across the magnet with a marker or something, but I would worry about breaking the conductivity of the pin. Maybe just a dot or two on the face?
Also I didn't have much of a problem hanging the pin/magnet combination from my battery, but if you do, you could think about snipping the pin to shorten it, or use a stronger magnet.
Pretty neat demonstration. It'll give you something to think about! I still haven't got my head around how this works.

Sorry for the long comment. I might have posted it here, but I don't subcribe. Thought this was a good place for it.
Dec 18, 2011. 7:33 AMcyberdove says:
Instead of using a AA battery inside a C battery converter, why not use the C battery used to wind the wire loop to power the motor?
Dec 17, 2011. 3:21 PMrimar2000 says:
Regarding your comment in photo 1 of step 3, "I actually have absolutely no idea about how the clothespin stuck to the battery when I took the picture", the reason is that the magnet is over the iron cover of the battery. The iron/steel magnetizes itself, attracting so the clothespin.

Good instructable!
Dec 18, 2011. 5:46 AMrimar2000 says:
I can read English almost well. Also I write it, sometimes without Google Translator help. But I don't understand it when I hear it.
Dec 17, 2011. 12:34 PMjackh94 says:
I've got a 50mm 20mm 10mm magnet (neodymium)(poles on the 20 by 10 face), I can see how you put the poles towards and away from the coil but if I did that I'd need some massive safety pins.
Would it be ok to just make a quick frame to support the magnet next to the battery?

Also, no need to remind people you're not advertising. They're pretty nice batteries anyway.
Dec 18, 2011. 2:07 AMjackh94 says:
Thanks for that, no it's not a cube, it's cuboidal (is that a word?). I'll give it a go.
Dec 16, 2011. 8:39 PMNannerman says:
nice! I always wanted to try this!
1-40 of 41next »

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Author:blinkyblinky
If you want me to build something...I'm open to ideas. I like to hack with electronics, mix with chemicals and play with ideas. My motto? "If you want something to be done in this world, you must do i...
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