Subject:
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Re: BBB wheels + availability?
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Newsgroups:
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lugnet.trains
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Date:
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Sat, 20 Dec 2003 12:43:48 GMT
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Viewed:
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1369 times
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In lugnet.trains, Jason J. Railton wrote:
> In lugnet.trains, Teunis Davey wrote:
> > Would it be good to just have a hole in the middle of the wheel to put a 2*4
> > modified plate with technic clips?(like the modified plates that hold the wheels
> > on the Lego soccer buses).Or was it a technic axel for a reason ? Chain drive?
>
> I'm eager for mine to arrive, too!
>
> I think the axle fitting is important. If you want to add coupling rods between
> wheels, you MUST have opposite wheels turning together on an axle, you MUST have
> at least two pairs of wheels like this, and you MUST have the connecting rods on
> either side 90° (not 180°) apart (called 'quartering'). Anything else will
> drift out of line and lock up.
>
> The only thing you can do with separate free wheels is a single rod from one
> wheel to a cylinder somewhere on the body of the engine.
>
>
> Jason R
Has anyone worked out how to get the push rods to work perfectly ??
On these combo's ,4 4 0 , 4 6 2 , etc ??
I've had a look ,at a real steam train, at a local park. And I found that the
push rods are in the same position, on both sides. But ,in my lego versions they
work better 90D apart. Is this what the counter balance on the wheels fixes in
real life ? Or is just the downward weight on the wheels?
I am using flex rod cables, as push rods .I have also put a 1*1 round plate on
the end of the technic half pin to space the rod out from the lip on the edge of
the wheel.The connecting rod is going to the middle wheel.Which also moves
sideways.It's a 4 6 2.Trying to keep it all under 9 wide. Should I add a weight
brick to the top of the axels ?
To Ben, could you please make some push rods for these wheels ,like the 12v ones
? What changes were the new wheels going to have ? I don't want to turn any of
these Beta wheels into blind drivers ,just yet. And I don't have a lathe, to do
it any way.
Thanks, Teunis.
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Message has 5 Replies:
 | | Re: BBB wheels + availability?
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| (...) I suggest that you look again as that's counter to my experience, every steamer I have ever seen has the rods quartered. Is this a static model that maybe was disassembled and incorrectly reassembled? Or are you being fooled by something else? (...) (21 years ago, 20-Dec-03, to lugnet.trains)
| | | Re: BBB wheels + availability?
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| In lugnet.trains, Teunis Davey wrote: <snip> (...) Push rods and connecting rods are both on my list of possible parts to make. First things first, I'm busy working the flanged train driver wheel. Regarding the blind drivers, I'm working on that (...) (21 years ago, 20-Dec-03, to lugnet.trains)
| | | Re: BBB wheels + availability?
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| (...) Like lar says, I'm sure that it is not the case that the quartering is the same both sides. However some points to consider A: like cars, steam locos come with different amounts of cylinders, the most basic being two (I think there were some (...) (21 years ago, 21-Dec-03, to lugnet.trains, FTX)
| | | Re: BBB wheels + availability?
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| (...) That may be (as lar said) because it's a static display. (...) No the counterbalance is only to balance (as much as possible) the weight of the connecting rod and bearing on the wheel. You'll notice the counter weight is much larger on the (...) (21 years ago, 22-Dec-03, to lugnet.trains)
| | | Re: BBB wheels + pushrods
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| (...) My 'Challenger' model is a 4-6-6-4, using Ben's wheels in two sets of "6". You have to de-flange the middle wheels in each set in order to allow them to slide inside and outside the rails around the corners. If you try to keep the flanges on (...) (21 years ago, 22-Dec-03, to lugnet.trains)
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Message is in Reply To:
| | Re: BBB wheels + availability?
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| (...) I'm eager for mine to arrive, too! I think the axle fitting is important. If you want to add coupling rods between wheels, you MUST have opposite wheels turning together on an axle, you MUST have at least two pairs of wheels like this, and you (...) (21 years ago, 16-Dec-03, to lugnet.trains)
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