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Brisbane Valley Tramway, Australia
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   Brisbane Valley Tramway, Australia
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   Author  Topic: Brisbane Valley Tramway, Australia  (Read 13710 times)
fred_55
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Re: Brisbane Valley Tramway, Australia
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« Reply #420 on: Sep 3rd, 2014, 3:43am »
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Good to see you're still lurking. You must have been busy as there seems to be a lack of news from the Apple Isle. Have you done the last loop yet?
I might have to build some new cars as my passenger demographic has changed a bit
pete


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« Last Edit: Sep 9th, 2014, 2:45am by fred_55 » Logged

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moose_the_caboose
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Re: Brisbane Valley Tramway, Australia
 
« Reply #421 on: Sep 20th, 2014, 10:20pm »
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on Sep 3rd, 2014, 3:43am, fred_55 wrote:       (Click here for original message)
Good to see you're still lurking. You must have been busy as there seems to be a lack of news from the Apple Isle. Have you done the last loop yet?
I might have to build some new cars as my passenger demographic has changed a bit
pete

 
hi pete!  glad to see progress and even proud to see the demographic change...gonna keep you busy!
 
 
moose


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fred_55
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Re: Brisbane Valley Tramway, Australia
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« Reply #422 on: Sep 22nd, 2014, 11:50pm »
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Moose, only 6 years and ten months to go, eh
Been doing some surveying at Canungra, the new terminus. Along the way a big dead tree had to go, along with another that was leaning on it. Very dangerous scenario, but it's now in a "better place"  (I recycled it into a retaining structure)


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« Last Edit: Sep 22nd, 2014, 11:51pm by fred_55 » Logged

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Re: Brisbane Valley Tramway, Australia
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« Reply #423 on: Sep 23rd, 2014, 12:07am »
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And this is the final approach to the station. You guessed it, another bridge, over a pretty little gully (I still have enough decking for about 30 feet of bridge, so I figure that the bridge will be 30 feet max )
There's about 2 feet plus to scalp off the hill and make room for passing loop and a siding with turntable.  The triangle (wye) has been put on hold as I've got too much prep on the go as it is.
The new quarry hasn't produced good material so I'm back to carting from the original pit, nearly 30 minute round trip to this point.  This also means that the station has to be done first as there's no access once the track is laid.


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fred_55
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Re: Brisbane Valley Tramway, Australia
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« Reply #424 on: Sep 23rd, 2014, 12:27am »
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The big bridge is now complete. I was expecting to have a pipe handrail over the trusses, but it seems to work fine without, possibly because the deck is 4 feet wide and boarded. The trusses are a 27 inches high and feel quite safe without the handrail.
In the background is the first load of track ties for the nearly 500 feet of finished prep.
Pete


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JWB46
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Re: Brisbane Valley Tramway, Australia
 
« Reply #425 on: Sep 23rd, 2014, 5:44am »
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G,day Pete, this is a real treat seeing what you accomplished there. Contratulations.
It has been a number of years since I last caught up with you, life has thrown a few wobblies my way and kind of took me away from the hobby. At present we are having a comeback, but from a slightly different angle. Instead of building a model loco, I am constructing a minimal loco   Still in 7.25inch.
Have a good one....John Baxter.


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Enjoy the day....John.

Checked my pulse this morning,
There was one,
Can't get a much better start to the day than that....

moose_the_caboose
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Re: Brisbane Valley Tramway, Australia
 
« Reply #426 on: Sep 24th, 2014, 6:41pm »
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on Sep 23rd, 2014, 5:44am, JWB46 wrote:       (Click here for original message)
G,day Pete, this is a real treat seeing what you accomplished there. Contratulations.
It has been a number of years since I last caught up with you, life has thrown a few wobblies my way and kind of took me away from the hobby. At present we are having a comeback, but from a slightly different angle. Instead of building a model loco, I am constructing a minimal loco   Still in 7.25inch.
Have a good one....John Baxter.

 
 
john, great to have you back!  believe me, i know how life gets in the way of the important things...live steaming! lol!  since you are starting a minimalist loco, why know start a thread here on the live steam board?  would make a great project to follow.
 
moose


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Re: Brisbane Valley Tramway, Australia
 
« Reply #427 on: Sep 24th, 2014, 11:23pm »
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Thanks Moose, without impinging too much on Pete's thread the basics for this loco has appeared on here. Back then it started as a battery/electric railbus ( check your #5 thread).Now it is petrol/electric, no batteries and now it is sit on. Will start new thread later.

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Enjoy the day....John.

Checked my pulse this morning,
There was one,
Can't get a much better start to the day than that....

fred_55
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Re: Brisbane Valley Tramway, Australia
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« Reply #428 on: Sep 26th, 2014, 6:32pm »
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John. Long time no hear.  Minimalist locos welcome. Keep in touch.
Sometimes you just have to put the project away until there's a better way, I'm having that problem with some vintage bogie trucks that won't play ball, but I come back from time to time to try again. Pete


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Steen_Rudberg
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Re: Brisbane Valley Tramway, Australia
 
« Reply #429 on: Sep 30th, 2014, 2:12pm »
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I just ran in to this: https://www.shapeways.com/

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Steen Rudberg
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fred_55
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Re: Brisbane Valley Tramway, Australia
 
« Reply #430 on: Oct 7th, 2014, 7:40pm »
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Interesting concept, but very hard to work out the best way to use them
 I think the technology is yet to come down to a price that is reasonable.
Maybe Moose has more info as he was talking about using them.
I've decided to go with lumps of metal from the junk box
Pete


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Re: Brisbane Valley Tramway, Australia
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« Reply #431 on: Oct 30th, 2014, 3:52am »
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A couple of tracklaying shots. Coming up through the cutting

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« Last Edit: Oct 30th, 2014, 3:53am by fred_55 » Logged

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Re: Brisbane Valley Tramway, Australia
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« Reply #432 on: Oct 30th, 2014, 4:00am »
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And approaching Chillagoe Station, 600 feet on from the big bridge.  Calls for passing loop, with the switch, a "road" crossing and drainage creek bridge all in quick succession.
Meanwhile we're having a heatwave, so I've retreated  into the workshop for some metal mangling practice!
Pete


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« Last Edit: Oct 30th, 2014, 4:01am by fred_55 » Logged

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Re: Brisbane Valley Tramway, Australia
 
« Reply #433 on: Oct 30th, 2014, 7:49pm »
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on Sep 26th, 2014, 6:32pm, fred_55 wrote:       (Click here for original message)
John. Long time no hear.  Minimalist locos welcome. Keep in touch.
Sometimes you just have to put the project away until there's a better way, I'm having that problem with some vintage bogie trucks that won't play ball, but I come back from time to time to try again. Pete

 
Pete, I am looking at the photo you posted of the "bogie trucks" and I think I see what may be causing you problems.  
 
I notice that all of your spring action comes from the bolster only and there does not appear to be any independent journal movement.
 
The bettendorf truck next to it also uses bolster springs but it also has side frame movement. Which allows each wheel to better follow the track undulations. I noticed that your trucks have a front and rear cross bar which may be making the whole assembly too rigid.  
 
Of course my friend I am making these assumptions from a photograph halfway around the world.  
 
Bobby
 
PS, the track work is looking outstanding as usual.
 
 


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fred_55
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Re: Brisbane Valley Tramway, Australia
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« Reply #434 on: Oct 31st, 2014, 3:29am »
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Ah, the trucks.......    Took me ages to work out how they worked, then even longer on how to model them!
Here's a pic of one in a local museum (found AFTER getting mine done. Doh.


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Re: Brisbane Valley Tramway, Australia
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« Reply #435 on: Oct 31st, 2014, 3:38am »
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They are like an arch bar style, but with a swing plank bolster. Sort of like passenger cars of the day, but without sprung axleboxes.
The articulation works like a Bettendorf, and the end bars, which carry the brakes, have enough flexibility to conform to track irregularities.
The problem I had was in using steel bars that didn't have enough give to act like the 1-1.
Cure was simple..... use thinner bar and leave the corner bolts slack. I have the luxury of nylok bolts on my side!!!
Here's the finished job, now my cattle car has the correct trucks, yee har.


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« Last Edit: Oct 31st, 2014, 3:55am by fred_55 » Logged

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« Reply #436 on: Oct 31st, 2014, 3:46am »
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And just to show that they work  Heading into the cutting on the new extension  
Pete


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« Last Edit: Oct 31st, 2014, 3:56am by fred_55 » Logged

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Re: Brisbane Valley Tramway, Australia
 
« Reply #437 on: Nov 1st, 2014, 5:57am »
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Hi pete
 
Good progress
 
Can we have more pictures of your trucks?


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Re: Brisbane Valley Tramway, Australia
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« Reply #438 on: Nov 2nd, 2014, 1:30am »
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Early pic of working out suitable materials to achieve correct appearance with enough strength for a riding car. (The cute wheels are diecast alloy, not quite up to passenger service but will be OK for future horse car.)
Instead I used spoked wheels from one of the Bettendorfs, replacing them with solid wheels cut from stock 4140 bar


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Re: Brisbane Valley Tramway, Australia
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« Reply #439 on: Nov 2nd, 2014, 1:43am »
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Here's the shop drawings. As usual, they were often changed to suit materials available, so I'm only continuing the practice!
Back in reply 428, the 2nd bolster assembly is on the left, with temporary bolt in the centre, to hold the spring nests until side links installed.
Also shown are the axleboxes. I would have liked to use 40 x 40 (1 1/2' sq) solid, but could not find any, so had to make do with 40 x 40 tube with solid bar inside, to carry the double skateboard bearings.


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« Last Edit: Nov 2nd, 2014, 1:44am by fred_55 » Logged

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