Subject:
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Re: matching motor speeds on mutli-motor trains
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 27 Mar 2000 18:38:28 GMT
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Viewed:
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2037 times
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Mario Ferrari wrote:
>
> Larry Pieniazek <lar@voyager.net> wrote:
> > In lugnet.trains, Christopher Masi writes:
> > > Today, when my green trolley rearended my red trolley I decided to
> > > test my motors. I ranked them in order of speed. Then I thought that it
> > > would be bad to have a fast motor paired with a slow motor.
> >
> > I've been thinking the same thing. I almost always put two motors on each • loco
> > and I'm beginning to suspect that some of my biggest mismatches, which • I've
> > perhaps left that way for too long, have actually been causing damage to • one
> > motor or the other.
>
> Actually there's no problem at all. This topic has been deeply discussed in
> the lugnet.robotics ng:
>
> http://www.lugnet.com/robotics/?n=9845 (some train specific examples in this
> message)
> http://www.lugnet.com/robotics/?n=9899
> http://www.lugnet.com/robotics/?n=9707
Thanks for pointing to some discussionsby knowledgeable people. I
intuitively felt there wasn't a problem, but don't have the analog
electrical knowledge to describe exactly how it isn't a problem.
With a train motor (LEGO or real) there's another factor which will help
balance extremely imbalanced motors, wheel slip (though I expect that
would be a fairly small factor, it will absorb at least some of the
difference since the real world isn't ideal).
--
Frank Filz
-----------------------------
Work: mailto:ffilz@us.ibm.com (business only please)
Home: mailto:ffilz@mindspring.com
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Message has 1 Reply:
 | | Re: matching motor speeds on mutli-motor trains
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| (...) problem in using multiple units together. It's hazy to me, but it revolves around gearing. I seem to recally that locos that are geared differently could not be MUed together because of the speed difference at the same throttle setting. (...) (...) (25 years ago, 27-Mar-00, to lugnet.trains)
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