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Subject: 
Re: 8-wide "Hogwart's Express" using Big Ben wheels
Newsgroups: 
lugnet.trains
Date: 
Wed, 17 Mar 2004 16:46:22 GMT
Viewed: 
1761 times
  
In lugnet.trains, Ben Fleskes wrote:
   In lugnet.trains, John Gerlach wrote: snip
   I’m not sure how well it shows up in the pictures, but the middle driver axle is a ‘blind’ driver - the flanges have been removed from those two wheels. This way, I’m really just running a two-axle configuration, the middle axle is more for “show” than anything else!

By taking off the flange, the middle wheel can slide on and off the track as the train goes around corners.

I’ll take some more close-up pictures of the trains this weekend, we’ll have our train layout set up for the first time in a couple of months. And I found the power cord for my camcorder, so I can shoot some short videos of the different trains in action.

JohnG, GMLTC

fyi

Big Ben Bricks LLC is working on a mold to produce an unflanged wheels for purchase. John has a few prototypes of the ‘blind’ driver.

Kind regards,

Ben Fleskes Big Ben Bricks LLC

Well, stop wasting your time on LUGNet and get on with it! ;-)

Seriously Ben, we can hardly wait.

I gather these prototypes have some of the back of the wheel missing too, so the flanges of the outer wheels can tuck in behind. These means the drivers aren’t so widely spaced that they bind on corners.

Of course, you can always follow Larry’s suggestion and put the blind ones on the outside, but it may look a little odd on a 6 driver set like this.


I’ve always kept all the wheels on the track, so my 4-6-2 runs as a 4-4-4 set. I’ve only ever been able to link two axles with rods though, not all three.

The problem with a full set of coupling and push rods is that you tend to fix the cylinders and driver wheels to the body, which means that the very front of the train swings out a long way on corners.

A bigger challenge is to fit the cylinders onto the wheelbase, so it’s then free to move around under the body of the engine. Your body can then be pinned to the wheelbase on the front and rear sets of wheels, so it swings out less. The drawback to this is that most prototypes have the cylinders right up alongside the front bogey.


Jason Railton

P.S. Is there anyone who isn’t doing a Mallard? I’m really going to have to think of something else...

P.P.S. Whaddya mean, “FINALY a steam engine with drive rods!”? ::Ahem::
:-)



Message has 2 Replies:
  Re: 8-wide "Hogwart's Express" using Big Ben wheels
 
In lugnet.trains, Jason J. Railton wrote: <snip> (...) That's how I managed to do it too! (...) I managed to fit the cylinders to the front bogie so they articulate too, but can't fit push rods though (...) Wouldn't normally do a Mallard Jason, but (...) (21 years ago, 18-Mar-04, to lugnet.trains, FTX)
  Re: 8-wide "Hogwart's Express" using Big Ben wheels
 
(...) Done, well sort of. I have already completed a mallard, although it was built before bbb wheels. Instead i am using the old red wheels, and some metal flanges they are very similar in size to the bbb wheels. The way I acomplished it was a set (...) (21 years ago, 23-Mar-04, to lugnet.trains, FTX)

Message is in Reply To:
  Re: 8-wide "Hogwart's Express" using Big Ben wheels
 
In lugnet.trains, John Gerlach wrote: <snip> (...) fyi Big Ben Bricks LLC is working on a mold to produce an unflanged wheels for purchase. John has a few prototypes of the 'blind' driver. Kind regards, Ben Fleskes Big Ben Bricks LLC (21 years ago, 16-Mar-04, to lugnet.trains, FTX)

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