Subject:
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Re: Town scale Road Train with steering trailers
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Newsgroups:
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lugnet.technic, lugnet.town
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Date:
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Sat, 5 Apr 2003 18:34:29 GMT
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Viewed:
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1198 times
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In lugnet.technic, Gerard Steenbeek writes:
> This is townscale Road Train. They use Road Trains in Australia since the
> distances are so great there. Road trains usually have steered trailers to
> cope with intersections at teh outskirts of cities.
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=39338
>
> You will notice that the second and third trailer will follow the first
> trailer. This is accomplished by putting a technic mechanism inside the
> trailers, the pictures show work in progress to allow you to see how it
> works. The last file is a 2MB movie of it in action.
>
> The only problem it sometimes has is traction, it can turn on the space a
> standard road plate curve, but the wheels will slide on the slipery plastic
> surface. It did best on the pooltable.
>
> The mechanism can be adjusted by lifting up the trailer, the gears will then
> separate and you can turn it freely. When you set it down the will interlock
> again. The 3rd trailer has a little gear reduction since it was taking
> corners too wide. Small alterations were made from the in progress pics to
> the final version but nothing that changed how it works.
>
> Gerard
Theirs nothing wrong with this system, although you seem to have added
complexiy where none is needed.
I think what you have tried to create is a "B triple". This is 1 normal
trailer following two other trailers that have their own fifth wheel
turntables. Each trailer automatically tracks the one in front, no mechanism
is needed. This combination also does away with the need for dollies, as
each trailer is supported by the one in front.
Steve
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