Bachmann L & YR 2-4-2 Tank

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New model has arrived.

This beauty arrived on my doormat today from Hattons:








Terry
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Oooh! You are a lucky chap.  I'm tempted but I have a kit.  Now where did I put my hair shirt?

John

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[user=565]Brossard[/user] wrote:
Oooh! You are a lucky chap.  I'm tempted but I have a kit.  Now where did I put my hair shirt?

John
John, cost only £71.36 plus postage, and total time to open box= 20 seconds.  Why would you want to build a kit?  Life is too short to mess around sticking bits of brass together.  Whack it on ebay and treat yourself.

Terry
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You're not wrong Terry, but as I'm doing EM,  I'd have to tear the chassis apart anyway.  I'm curious to see if I can get the kit looking remotely like this model - that won't be easy, but I'm game.

John

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Lovely job Terry. You lucky man.
Tell me have Bachman arranged a pivot on the rear axle for those tight curves?

regards,

Derek.
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I'm actually curious about that too.  The loco should have radial trucks I think - the chassis kit I have has provision for that.

John

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Hi Terry,

Very nice model. When you are done looking at it, you can send it to me. My address is…. :mrgreen:

Cheers, Gary.
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Both front and rear pony trucks are fixed but the axles have quite a bit of side play (5mm in each direction).  The drivers have about 2mm side play in each direction.  I haven't run it yet but I understand that a couple of the magazines have already done a review.

Terry

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Hi terry

Will you be running it on DC or DCC? I would be interested to see where the decoder goes. I am sure I read somewhere it has a 6 pin decoder fitting?

Bob
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[user=11]Novice[/user] wrote:
Hi terry

Will you be running it on DC or DCC? I would be interested to see where the decoder goes. I am sure I read somewhere it has a 6 pin decoder fitting?

Bob
You are right Bob they changed it from the standard Bachmann 21 pin to a 6 pin (I believe the 64xx Panniers will also be 6pin)

If Terry is DC hopefully I will be able to tell you how it works DCC before Christmas with the LMS variant!

John
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Lenz DCC,RR&Co Gold V10 A4 Windows 10
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[user=434]John Dew[/user] wrote:
[user=11]Novice[/user] wrote:
Hi terry

Will you be running it on DC or DCC? I would be interested to see where the decoder goes. I am sure I read somewhere it has a 6 pin decoder fitting?

Bob
You are right Bob they changed it from the standard Bachmann 21 pin to a 6 pin (I believe the 64xx Panniers will also be 6pin)

If Terry is DC hopefully I will be able to tell you how it works DCC before Christmas with the LMS variant!

Thanks John, I would be interested to know where the decoder etc goes and how much space there is for speaker too.
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[user=11]Novice[/user] wrote:



Thanks John, I would be interested to know where the decoder etc goes and how much space there is for speaker too.
Max fitted sound into a Hornby Terrier so I guess it can fit into this loco with some effort.

Ron
NCE DCC ; 00 scale UK outline.
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[user=711]col.stephens[/user] wrote:
Both front and rear pony trucks are fixed but the axles have quite a bit of side play (5mm in each direction).  The drivers have about 2mm side play in each direction.  I haven't run it yet but I understand that a couple of the magazines have already done a review.

Terry

:)Thanks Terry,

Hmm, Might not be to hard to convert to EM gauge then.

There will be a bit less sideplay on the wheels but the easier radius curves in EM should counter that.

I believe Lenz have introduced a new small decoder which might do the job.

regards,

Derek.
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I was going to say that thinning wheels might help but then for EM, axles will be longer.  Sideplay should be proportionally the same.  Derek, you're just going to have to buy one and do the analysis. :cool wink

John

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Saw a couple in the local Antics this morning. Just trying to think up a reason to get one. It looks really nice. I suppose I could justify it in that the line has become a preserved line.

I'm old, that's why I'm allowed to change my mind, when I can find it.

My Website: index
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I have taken a further look at the pony trucks.  The axles are sprung to keep the wheels on the track.  The following photos should show how the wheels are free to follow curves in the track.









There appear to be pick-ups only on the driving wheels, effectively making the loco an 0-4-0 for electrical pick-up purposes.  The driving wheels are spaced at approximately 34.5 mm. I am wondering how it will perform across complex pointwork.

Terry


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Thanks Terry for those Photo,s.
I was wondering about the axle arrangement those 2-4-2,s had a long wheel base which would have caused real problems with fixed axle,s.
I am suprised that Bachman pivoted front and rear axle,s as the real one,s used a rear radial axle.
Hmm,power pickup could be a pain on long crossings etc. Although not so much with live frog points.
If I was going to kit bash it I would fix the front axle with some sideplay and add pickups to the front wheels?.
Anyway best to run it and see Terry.
regards,
Derek.
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Thanks for posting those photos Terry

There are a couple of threads in the other place and I found this


Also discovered the leading and trailing wheels pick up as well as all four driving wheels. One wheel of each of the radial axles is live to its axle, one side at the front and t'other side at the rear, and passes the current to the main pick up strips in the keeper plate….a very neat arrangement. Oh, and if you decide to remove the keeper plate….beware…..the radial truck springs can fly out!  Many thanks to Bob Blood for allowing me to discover this!  
Dont know if that means both leading and trailing wheels pick up or just the one live to the axle? But better than nothing

Fairly heavy snowfall here so I doubt if I will see mine this side of Xmas

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John
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Thanks for that John.  I have checked both pony truck axles and indeed there are plastic bushes inserted on the front axle offside and rear axle nearside.  So, power is obviously picked up from one rail via one axle and returned via the other axle and rail.  A very ingenious way of ensuring pick-up.  Phosphur-Bronze pick-ups protrude down from the chassis onto the inside of each driving wheel.  A couple of these can be seen in one of the photos.

Terry
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Well thats good news.
Looking at the close up photo one can just make out pickups on the front and rear wheels.
Lovely looking loco.

regards,

Derek
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