Subject:
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Re: Proposed Monorail from 4.5v Track. Not built. Thoughts only
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 22 Jan 1999 23:13:58 GMT
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Viewed:
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1469 times
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Gregor Benedikt Rochow writes:
> > Maybe you could use *only* one of the two 4.5v radius curves: either the
> > inner, and smaller, radius curve with the smooth top surface; or use the
> > outer , larger, radius curve with the 'toothed' top surface.
>
> Or use both and have parallel double curves...
That is great point. However, the tracks would need to be spaced 4 radial
studs from each other for the path to remain truly parallel to one another
throughout an entire circle, and I'm not sure how wide a monorail train for
this single 4.5v track would be. Parallel double curves for independent
trains are something no LEGO train system, that I know of, has had. To be able
to lay smooth parallel curves would be very nice.
> > For the train itself:
> >
> > I envision a three wheel set up to both guide and support a train on the
> > single track. One wheel would roll along the top surface of the track.
> > Two wheels would roll in a plane parallel to the ground, one on either
> > side of the track to keep the train on the track. Two of these tri-wheel
> > assemblies would be connected to either end of a train car via a pivot
> > above this tri-wheel assembly that would rotate in a plane parallel to the
> > ground.
> >
> > The above design would likely wobble to some degree if the two side wheels
> > are not close enough to the track.
>
> No problem, make them spring-(or rubber-band-)loaded.
Good point.
> > Power to top-riding wheel might be provided through a Technic motor
> > driving a Technic axled wheel. However, there are rotation issues
> > concerning the drive mechanism that I can foresee, but have no thoughtful
> > solution other than a universal joint or (LEGO Brand) rubber band ;-).
>
> What issues?
I'm not sure if my loose idea would work or not, and I simply don't think I can
visualize nor describe the drive mechanism to my working satisfaction with
trying to actually build it. Unforeseen issues.
<snip monorail skirts and track structure supports>
> > If this discussion gives anyone the motivation to try it out, or if you've
> > already tried it, I'd love to hear about your efforts and level of
> > success.
>
> I haven't tried it yet, but thought about it for quite a while.
>
> -gbr
Later,
James Mathis
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