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Author Topic: World's simpest electric train  (Read 1997 times)

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eja

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World's simpest electric train
« on: February 06, 2015, 08:31:31 PM »
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« Last Edit: February 07, 2015, 02:04:24 AM by eja »
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pjm20

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Re: World's simplist electric train
« Reply #1 on: February 06, 2015, 09:13:52 PM »
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Wow! That's really cool, any I guess it makes sense. Kinda the inverse of a can motor where the magnet does the traveling, and not the copper coil.
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Peter
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Kisatchie

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Re: World's simplist electric train
« Reply #2 on: February 06, 2015, 09:31:36 PM »
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Hmm... what? No switching
capabilities...?

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jagged ben

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Re: World's simplist electric train
« Reply #3 on: February 06, 2015, 09:45:58 PM »
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Quote from: Kisatchie on February 06, 2015, 09:31:36 PM
Hmm... what? No switching
capabilities...?

That would not be hard.   Just have another piece or two of the coiled wire and connect and disconnect them as he did with the two ends of the loop. 
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Bob Bufkin

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Re: World's simpest electric train
« Reply #4 on: February 06, 2015, 10:56:13 PM »
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Isn't this the same theory they use for maglev?
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Dave V

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Re: World's simpest electric train
« Reply #5 on: February 06, 2015, 11:02:37 PM »
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Maxwell's equations.
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peteski

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Re: World's simpest electric train
« Reply #6 on: February 06, 2015, 11:18:19 PM »
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Quote from: Dave Vollmer on February 06, 2015, 11:02:37 PM
Maxwell's equations.

Now if we can develop this for N or Z scale, we will be all set!  :trollface:
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nkalanaga

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Re: World's simpest electric train
« Reply #7 on: February 07, 2015, 02:07:04 AM »
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Not really related to the Maglev, but closer to the linear motors that power some Maglevs.  They'd work on a conventional train as well, and are used on some smaller machines.  A linear motor is basically an AC induction motor "unwound", with the field coils arranged in a flat strip. and the "rotor" mounted above, below, or beside them.  Alternating current in one side induces opposite currents in the other, and the relative phasing determines the direction of movement.
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N Kalanaga
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up1950s

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Re: World's simpest electric train
« Reply #8 on: February 07, 2015, 11:12:00 AM »
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So he left info out .

Does it matter if the coil is CW or CCW ?

Magnet polarity facing battery poles in which direction , and does that matter ?

Battery direction ?

And all the above as it relates to direction and speed .

If the battery assembly was glued to a smaller sized dowel how fast and far would the coil fly out , and would it put out a squirrels eye ?   
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Richie Dost

thomasjmdavis

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Re: World's simpest electric train
« Reply #9 on: February 07, 2015, 11:22:58 PM »
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So, if I put a slinky inside a model subway tunnel, and a battery with 2 magnets in each subway car, I should be able to power the subway without wires to the tracks....

OK, I have no idea WHY I would want to do that, but it is an intriguing concept.
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Tom D.

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nkalanaga

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Re: World's simpest electric train
« Reply #10 on: February 08, 2015, 12:40:15 AM »
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What he's built is actually a low-performance "coil gun", better known to some people as a "mass driver" or "electromagnetic launcher".  They're usually a lot more complicated, in order to get higher acceleration, and have been tested as anything from artillery to satellite launchers.

In reality, all it is is a very long solenoid, just as you'd find in a relay or twin-coil switch machine.

A neat demonstration.
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N Kalanaga
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eja

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Re: World's simpest electric train
« Reply #11 on: February 08, 2015, 12:46:42 AM »
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Actually folks, I believe this is the technology that has allowed for the replacement of the steam catapult on our next generation of aircraft carriers. 

OK,  the Navy has figured out to use it ... now it is up to model railroaders to perfect it !!
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peteski

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Re: World's simpest electric train
« Reply #12 on: February 08, 2015, 01:07:00 AM »
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Funny thing is that we gripe about how unrealistically fast our N scale trains run and yet we now want to incorporate a technology designed to go very fast into our tiny trains. Switching speeds? Neah, we could go 5000 SMILES per hour!  ;)
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nkalanaga

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Re: World's simpest electric train
« Reply #13 on: February 08, 2015, 02:15:50 AM »
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With the right coils and driver circuits we could go 5000 REAL miles per hour, until the model melted from air friction.
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N Kalanaga
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GimpLizard

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Re: World's simpest electric train
« Reply #14 on: February 09, 2015, 01:44:37 PM »
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Quote from: nkalanaga on February 08, 2015, 02:15:50 AM
With the right coils and driver circuits we could go 5000 REAL miles per hour, until the model melted from air friction.

Or it done blows up real good. he-he
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