dc motor

[Snail13579]

how do i make a dc motor? i know the materials, but im not really sure why its not spinning. I made it so it has a copper wired ring in the center with magnet at the bottom and a battery powering it. Is it the wires that led from the battery to the copper wire the problem or what?:confused:

[ydoaPs]

Are you using a commutator? Are you using just the one magnet?

[Snail13579]

2 magnets

[ydoaPs]

How about the commutator? That's an important bit.

[Snail13579]

how do u build one?

[doG]

Here's a simple motor that may help, http://scitoys.com/scitoys/scitoys/electro/electro.html

 

About halfway down the page you'll see a part about stripping the magnet wire on one side. That's the commutator.

 

HTH

[YT2095]

don`t over-complicate matters, here`s a simple DC motor I made up in about 30 seconds:

the magnet on the nail is actually spinning, but you can`t really see that in the pic.

 

here are the parts needed:

1 battery, a nail, a Magnet on the end of the nail, and a bit of wire.

see, Nothing complicated at all

[Snail13579]

i wanted to make one that does work, and that has a ring in the center, but im still not really sure about the wire part

[YT2095]

post a Picture of what you have so far then, it`ll be easier to explain the error and corrections needed from that.

[swansont]

don`t over-complicate matters, here`s a simple DC motor I made up in about 30 seconds:

 

[...]

 

1 battery, a nail, a Magnet on the end of the nail, and a bit of wire.

see, Nothing complicated at all

 

I remember doing this. deja vu

[Snail13579]

right now, im just using normal copper wire. im sure that the problem is at the insulation and/or the "magnet wire" which i have no idea what that is. the rest i got it covered. im building a beakman's dc motor btw

[doG]

right now, im just using normal copper wire. im sure that the problem is at the insulation and/or the "magnet wire" which i have no idea what that is. the rest i got it covered. im building a beakman's dc motor btw

 

Yes, you will need magnet wire to build a motor like like Beakman's. Magnet wire as a very thin layer of insulation so that it can be wound in tight coils where the windings do not short circuit with each other. Some simply has a thin varnish on the wire that you can scrape off with a blade of some sort. In a Beakman's motor you scrape it off on one side to form the commutator.

[Snail13579]

what kind of wires at home can be used as a magnet wire?

 

edit: wouldnt the magnet wire be attracted to the magnet? it should be normal copper wire with insulation IMO

Edited June 9, 2008 by Snail13579

[doG]

None that will work in a Beakman's motor. Since the wire acts as an axle of sorts in the commutator it needs to be fairly round even after the insulation is scraped off on one side.

[Snail13579]

so what kind of wire do i need? be specific with examples please

[doG]

http://www.radioshack.com/sm-buy-the-315-ft-magnet-wire-set-on-http-wwwradioshackcom--pi-2036277.html

 

P.S. You might try this in the future if you need a quicker answer....

http://www.google.com/search?q=magnet+wire

[swansont]

Really simple motor I stuck in a blog post today. Wire, battery, appropriate magnet, and one hand fewer required than YT's example.

 

http://blogs.scienceforums.net/swansont/archives/484

 

I built one of these this afternoon. Quick 'n dirty. Had to get a magnet at the hardware store, but the actual construction was about ten minutes. Updated my post, so the video is there.