Subject:
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Re: Draft of a new driver wheel
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 29 Oct 2003 20:34:07 GMT
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Viewed:
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2618 times
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In lugnet.trains, Reinhard “Ben” Beneke wrote:
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In lugnet.trains, Jason J. Railton wrote:
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On the left hand is a wheel from 396 etc. And I never saw a broken one. My
spokes are twice as thick as these old one have been.
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Personally, I prefer a smaller wheel (3 studs across the hub). What size is
this across the hub, rather than the flange?
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Have not measured it myself (in millimeters) so far, only in
CAD-coordinates...
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From your own picture, eyeballing the measurement by holding pencils up to the
wheel and the ties below it and so forth, I get that the hub diameter is just a
smidgeon below 4 studs across, while Jason of the green engine wants 3, which
coincidentally is about the diameter of the wheel you show next to it (the one
used in the 7750?).
Given that wheel exists, why do another one that diameter (ignoring for the
moment what the price of that wheel actually IS) ??
That said, though, I think for freight locos I’d rather err a bit smaller too, I
guess. I have never seen a graph of engine population density vs driver diameter
so I’m guessing but I think smaller may be a bit more common than say 5 or 6
studs across ala the Thatcher Perkins driver you show on the other side. But I
don’t see 4 as totally too large by any means. In fact I think it’s a good
choice.
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Message has 3 Replies:
 | | Re: Draft of a new driver wheel
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| (...) I'm coming to the same conclusion, I was originally envisaging a bit larger. But the large size of the flanges makes the dimensions you have to take into account for footplate height much larger than on a 'scale' model. The size ben has chosen (...) (21 years ago, 29-Oct-03, to lugnet.trains, FTX)
| | | Re: Draft of a new driver wheel
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| (...) Given 5 bricks=6 ft (a minifig), then 5 bricks is if anything, midrange. engines I have data on here- 8P (DoG) was 74", a UP FEF was 80", J is 70", German 05 is 90", NYC J3A 79", GWR Castle 80", German P8 69" So, a 5 stud diameter looks about (...) (21 years ago, 30-Oct-03, to lugnet.trains, FTX)
| | | Re: Draft of a new driver wheel
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| (...) Well the only 3 reasons I can think are: 1. Mounts on a Technic axle 2. has hole to attach connecting rod 3. has optional counterweight None of which I think the 7750 wheel has 8?) ROSCO (21 years ago, 30-Oct-03, to lugnet.trains, FTX)
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Message is in Reply To:
| | Re: Draft of a new driver wheel
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| (...) Hi Jason! He said "no" for any drivers in general. :-( (...) Have a look at this: (URL) On the left hand is a wheel from 396 etc. And I never saw a broken one. My spokes are twice as thick as these old one have been. (...) Have not measured it (...) (21 years ago, 29-Oct-03, to lugnet.trains, FTX)
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