Subject:
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Re: Jawn Henry construction notes (was Re: infrared remote control of LEGO trains using NQC and RCX
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 27 Mar 2000 05:25:34 GMT
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Reply-To:
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[cmasi@cmasi.chem]saynotospam[.tulane.edu]
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Lar,
When I read your comment I jumped up to check it out. The center slider[1]
evolved from an unattached wheelset, which is why it had to be in the center. When
you said end slider I thought, "Power for my SD40!" I did not try to make it, but
there would be a problem. Put a motor on a curve and then put two trucks separated
by three studs on a curve. The motor is held in place snuggly, the dual wheelset
truck does not fit snuggly. I think the extra bit of slop, in the dual wheelset
truck, is needed for my design to work. With a motor, the third wheelset has to
move from side to side much more than my design would allow. A small redesign
would allow the wheelset to move more, but here may be--and probabley are--better
solutions.
Chris
[1]
http://cmasi.chem.tulane.edu/~lego/trains/Engine%20gallery/EMD_SD40_2/Floating_wheeset_folder/trucks.htm
Larry Pieniazek wrote:
> In lugnet.trains, Stacy J. Bledsoe writes:
> > Thanks for the advise Michel,
> > After looking over the Jawn Henry schematics last night I noticed that each
> > six driver wheelset, there being 4 sets of 6, has an offset between the first
> > and second pair of drivers, then the second and third are close together. So,
> > after scaling I believe I can make each Set of 6 using a motor and one pair
> > wheelset attached behind.
>
> If you do this (1) you need to arrange for articulation of some sort. I used a
> ball and socket(2). Others have used an arrangement to allow the non motor
> wheelset to slide sideways. (3)
>
> But if you make the 6 wheel truck rigid, you won't be able to get round
> corners, I don't think.
>
> 1 - I did for Big Red, which at this point to me is looking rather weak
> compared to more realistic work done lately
>
> 2 - Which you can see on my webpage. http://my.voyager.net/lar
>
> 3 - There was an SD posted recently in Conrail colors that has a center slider,
> you'd be the first to do an end slider if you pulled it off, I think,
>
> ++Lar
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