Subject:
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Re: B&O V-2 Hudson Steam Engine
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 13 Jan 2003 11:57:54 GMT
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Viewed:
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876 times
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In lugnet.trains, Steven Barile writes:
>
> Are your drivers attached to the frame/boiler of the engine or floating
> between the trucks? Ben Fleskes uses a method (the one I’ve been using)
> where all the drivers are floating between the front and rear trucks;
> pivot-pinned to one truck and pivot-pinned with a front-to-back slip joint
> to allow for expansion for around corners. And both attach points have the
> freedom to translate up and down along a short axle so it can take uneven
> track situations.
If I might pipe in, I think that the drivers are indeed affixed to the body ...
my experience has been that this is an important feature with a lot of
working-piston systems. Having the drivers move means that you either have to
(a) have the cylinders move as well, or (b) allow enough slop in the linkages
to provide for some relative motion between the drivers and the cylinders.
Oftentimes it's easier to simply affix the drivers and cylidners relative to
each other, and then provide for some (creative) pivoting of the leading and
trailing trucks.
-s
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Message has 1 Reply:
 | | Re: B&O V-2 Hudson Steam Engine
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| (...) Yes, the drivers are attached to the frame, for the reasons Shaun explains above and because that's how the real ones are built. By making the pilot and trailing trucks pivot closely to the drivers, I was able to keep the drivers over the (...) (22 years ago, 13-Jan-03, to lugnet.trains)
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Message is in Reply To:
| | Re: B&O V-2 Hudson Steam Engine
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| Hi Tom, Very nice job. I love the simple lines. Yet has plenty of detail. I guess I'm on the other end of the spectrum from Larry on that point! I am working on a 4-6-4 right now too, so I have a couple questions. Are your drivers attached to the (...) (22 years ago, 13-Jan-03, to lugnet.trains)
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