Subject:
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Re: A brief reflexion on power sources
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 28 Jul 2003 18:43:10 GMT
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Viewed:
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1090 times
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<SNIP>
> > So i see it like this :
> > 1) a 5 pole rotor motor for smooth operation at low speed
> > 2) higher R.P.M for the motor and gear it down (as in the old time) for higher torque.
> > 3) a 8 pole connector where the following 4 wires are connected: Left wheel
> > contact,left motor contact, right motor contact, right wheel contact. By
> > bridging the first two and last two you make the connection as the actual
> > motors. Remove the bridge and place a DCC decoder on it. see:
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?i=180360
> > I used following connectors (AMP)
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?i=180366
> > and connected the upper pin with the lower pin, so creating a double contact for
> > reliability.
> > 4) place the DCC decoder inside the locomotive body (not the motorblock) so that
> > you have easy acces to the extra outputs for locomotive front & rear light,horn,
> > wagon licht, ...
> > 5) heavier motorblock for better grip on the track.
>
> Neat work!
> I am just not comfortable with making my own modifications: I fear the motor
> will cease to work once I start soldering things to it... it's a bit irrational,
> LEGO being very sturdy and all that. I should take a workshop in train modelling
> to gain confidence in this.
> Out of curiosity, what do you consider the traction power gain is after these
> alterations are put to use?
DCC allows you a smooth speedcontrol, especially on low speed, but you need a
good motor (if possible 5 pole rotor).
If you have a higher motorspeed, with you gear down (more than the actual motors
- at 9V they go out the curves !) then you have more power on the wheels, so you
can pull more cars.
A heavier motor is also needed for better grip on the track, with should be
easier for the motor to pull more cars (longer trains with the standard Lego
cars [16 / 24 / 28 studs long] or longer passenger cars [some of mine are 51
studs by 6 wide]
Note that some model locomotives have a piece of steel added to obtain a higer
weight, with is good for the grip on the track, and so a better traction - model
train cars are verry light in weight compared with our Lego train cars (look at
the Santa Fe cars).So a strong motor is no luxury for Lego trains.
Ludo
>
> Pedro
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Message is in Reply To:
 | | Re: A brief reflexion on power sources
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| (...) Especially kids :-) (...) Which could double as base for the signalpole (I think). Then its bulkyness would be in disguise alongside the track :-) (...) LOL! :-) Yes, I intend to attend the show this year. Hope to meet you there! (...) Neat (...) (21 years ago, 28-Jul-03, to lugnet.trains)
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