Subject:
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Re: My opinion on drivers...
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Newsgroups:
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lugnet.trains
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Date:
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Tue, 5 Nov 2002 09:03:35 GMT
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Viewed:
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734 times
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In lugnet.trains, Stefan Garcia writes:
> In lugnet.trains, Reinhard "Ben" Beneke writes:
> > These are tested and they are in fact running fine. But as a modification I
> > would suggest to place the hole of the driving rods nearer to the center of
> > the wheel. (8mm ... 12mm from center). That means less movement of the rods
> > and therefore less friction and running resistance.
>
> The one thing where I disagree. With the rods towards the center of the
> wheel, it just wouldn't look right. They need to be in the correct spot on
> the drivers. That is part of the beauty (sp?) of steamers; the wonderful
> movement of the side rods.
>
> -Stefan-
Hi Stefan,
if you take a look at real steam engines, you can easiely find out, that there
have been different solutions. Some had the eye quite near the flange, but
lots of them had it much nearer the center than to the flange.
So if lots of prototypes had it there AND it is helpful for the operational
reliability of the Lego model I would tend to place it there. If the eye is
placed on a 12mm radius, that still does mean moving forward and backward by 3
studs! So even 8 mm radius will be enough in my eyes...
Regards,
Ben
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Message has 1 Reply:
 | | Re: My opinion on drivers...
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| (...) The telling factor here is the mechanical advantage desired. Fast passenger locomotives with large drivers may well have their rod connetion point much closer to the center proportionally than small drivered steamers intended for low speed (...) (22 years ago, 5-Nov-02, to lugnet.trains)
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Message is in Reply To:
| | Re: My opinion on drivers...
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| (...) The one thing where I disagree. With the rods towards the center of the wheel, it just wouldn't look right. They need to be in the correct spot on the drivers. That is part of the beauty (sp?) of steamers; the wonderful movement of the side (...) (22 years ago, 4-Nov-02, to lugnet.trains)
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