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Topic |
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Fedorenko
Junior Member
Australia
463 Posts |
 Posted - 09 Oct 2003 : 03:17:41
Hi,Its this simple, if you apply power to a dynamo, will the shaft turn? Im just making srue what I think is right. Good ideas usually are created by crazy people, go figure... |
maclover5
LC Doctor/Hot Rodder
Australia
5830 Posts |
Posted - 09 Oct 2003 : 03:22:30
Probably. A dynamo is really nothing more than an electric motor hooked up to a light or something that generates power when the shaft is turned, like a generator, and i believe you can tun a standard electric motor into a dynamo by putting it into that configuration."**** em" - Jobs in regards to customers
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cory5412
68KMLA Comrade-in-Arms
USA
4679 Posts |
Posted - 09 Oct 2003 : 06:26:11
yes, but I would suggest that it be a small motor  we have one of those dynamo-rechargo battery radios, and it does flashlight, and radio I've wanted that thing forever  one day, me and my friend Kyle took turns cranking it to give the other light and musics whilst eating also, I'm just one of those energy-conscious types (I'm the one who wanted to build an indoor-solar-farm that powers itself at night... :drool:) Official 68k videographer
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Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 09 Oct 2003 : 14:25:50
As long as it's a DC motor or generator this should work, IIRC.http://istp.gsfc.nasa.gov/earthmag/dynamos.htm jt  ™.
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The Lightning Stalker
Full Member
USA
747 Posts |
Posted - 09 Oct 2003 : 15:24:12
It depends on the dynamo. Some do, some don't.The Lightning Stalker Performa 631CD, 7.5.5
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q950
Junior Member
USA
135 Posts |
Posted - 09 Oct 2003 : 18:16:25
There is also one other thing to consider. Some motors use electromagnets that are charged from the incoming current and cant be used as a generator. Others use fixed magnets and can induce a charge just by turning them.Logan Quadra 950, Workgroup Server 9150, Performa 6400, Powerbook 2300c, 4x Quadra 700's, iBook |
cory5412
68KMLA Comrade-in-Arms
USA
4679 Posts |
Posted - 09 Oct 2003 : 19:34:02
are you saying, that with a bit of activation energy, one'd be able to have a motor what powers itself? that could be something worthy of an investigation  Official 68k videographer
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Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 09 Oct 2003 : 20:23:51
quote:
are you saying, that with a bit of activation energy, one'd be able to have a motor what powers itself? that could be something worthy of an investigation
That'd be the fabled "perpetual motion" engine. I think he's describing the workings of an alternator as opposed to a generator.http://www.vtr.org/maintain/alternator-overview.html jt ™.
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Fedorenko
Junior Member
Australia
463 Posts |
Posted - 09 Oct 2003 : 22:40:04
Well...Im "half-ass"ingly working on an idea for a perpetual motion machine Good ideas usually are created by crazy people, go figure... |
The Balance Of Judgement
Senior Member
Ivory Coast
1006 Posts |
Posted - 09 Oct 2003 : 23:04:04
Humans are not advanced enough to understand physics to the degree required to make a perpetual machine.
We still can't make machines that are 100% efficient with energy. Alot of machines output more heat than they should.
On a side note there is a perpetual machine that does exist. It's the atomic particles. The electrons constantly orbit around...never stopping. But it's too small for much use by normal people.
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Fedorenko
Junior Member
Australia
463 Posts |
Posted - 09 Oct 2003 : 23:23:27
I know, im bored, the cost of the project is going to be under 20 bucks .Gives me soemthing to work on this weekend Good ideas usually are created by crazy people, go figure... Edited by - Fedorenko on 09 Oct 2003 23:24:17 |
cory5412
68KMLA Comrade-in-Arms
USA
4679 Posts |
Posted - 10 Oct 2003 : 10:00:16
I've always thought that the idea of using bright lightbulbs to power solar panels would be great Official 68k videographer
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q950
Junior Member
USA
135 Posts |
Posted - 10 Oct 2003 : 12:08:07
I had this idea that you could take a round opaque steel container and put some magnetic bearings in the middle of it and stick a wheel with some magnetic bearings on it inside of the container and then start the wheel spinning inside the container on the magnetic bearings and then seal the container up and vacuum out all of the air before the wheel had a chance to slow down due to air resistance. That way there would be no resistance in the bearings, no air resistance and no way for outside energy to get in and affect the experiment. However it is like schrodingers catbox, the wheel is both stopped and moving at the same time until you break the seal and look to determine if it is moving or not. Correct me if I used that catbox example the wrong way.Logan Quadra 950, Workgroup Server 9150, Performa 6400, Powerbook 2300c, 4x Quadra 700's, iBook |
The Balance Of Judgement
Senior Member
Ivory Coast
1006 Posts |
Posted - 10 Oct 2003 : 14:51:24
You would create the vacuum before starting the wheel. (Wheel started by circuits inside the vacuum by remote)
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The Lightning Stalker
Full Member
USA
747 Posts |
Posted - 10 Oct 2003 : 19:57:58
quote:
We still can't make machines that are 100% efficient with energy. Alot of machines output more heat than they should.
That's what they want you to believe. It's already been done.Moray
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The Balance Of Judgement
Senior Member
Ivory Coast
1006 Posts |
Posted - 10 Oct 2003 : 21:32:16
Perhaps.I've toyed with ideas of motors for fun over the years, but my practical understanding of them is limited.
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cory5412
68KMLA Comrade-in-Arms
USA
4679 Posts |
Posted - 10 Oct 2003 : 21:58:23
practical understanding: "motors move things, and convert electrical energy, to kinetic energy" Official 68k videographer
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The Lightning Stalker
Full Member
USA
747 Posts |
Posted - 11 Oct 2003 : 18:33:43
Motors are fun. I once had a 5hp 3-phase motor that I thought was safe under the carport, but the snow blew in and got it anyway. R.I.P. little motor.  |
cory5412
68KMLA Comrade-in-Arms
USA
4679 Posts |
Posted - 11 Oct 2003 : 18:45:54
lol...My little trains have motors probably not quite as big as the ones most of everyone here are talking about though Official 68k videographer
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QuadraJets
Junior Member
USA
344 Posts |
Posted - 11 Oct 2003 : 21:41:01
Just because I was bored today, I took a permanent magnet motor from a Chevy Caprice ventilation fan....and turned the shaft down enough that it would fit in the collet on my 33,000 rpm air die grinder. I fired it up, and i got 60vdc No Load out of it, and it lit up a 60 watt bulb ever so slightly. I didn't check the voltage when it was under load. I have a 3 phase 5hp Baldor sitting outside right now...It needs new bearings and a new starting cap, but the stator windings are still like new. Maybe if i get bored enough I will rebuild it just for the fun of it (but playing with 3 phase is likely to lower the PAF a bit) Artillery Commander/Engineer, 68kMLA
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OT: A small electric dynamo
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