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2-8-8-2 Locomotive


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#31 jdcrawler ONLINE  

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Posted February 14, 2016 - 11:27 AM

The larger size makes it a lot easier to build things in O-scale than in HO-scale but it also means it takes a lot more room for a layout.

A good comparison is that In HO, you can build a decent RR layout on a 4x8 sheet of plywood.
In O-scale, a articulated locomotive like this one would need a minimum of about a ten foot diameter to turn around easily.


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#32 UncleWillie ONLINE  

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Posted February 14, 2016 - 01:47 PM

So 20 inches in 1:87th scale is 1740 inches 145 feet fullsized, right?


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#33 jdcrawler ONLINE  

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Posted February 14, 2016 - 01:49 PM

So 20 inches in 1:87th scale is 1740 inches 145 feet fullsized, right?

 

My scale is the 1:48  and that would 80 ft for the fullsized locomotive.


Edited by jdcrawler, February 14, 2016 - 01:50 PM.

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#34 UncleWillie ONLINE  

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Posted February 14, 2016 - 06:57 PM

Ok I was thinking you said it was 85 feet. I knew I missed something. I blame it on the 15000000000 degree temperature I am running. 


Edited by UncleWillie, February 14, 2016 - 07:04 PM.

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#35 jdcrawler ONLINE  

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Posted February 20, 2016 - 09:08 AM

The front of the smoke box on the AHM 0-8-0 locomotive model kit has a headlight, bell and the feedwater heater at the top of the front plate.

SAM_1133_zps8v82qcci.jpg


This big articulated locomotive uses two air compressors and they are mounted on the front of the smoke box.
The air compressor for the AHM 0-8-0 is made in two half's that are glued together to form the compressor.
The back half fits on a bracket with two pegs that fit into the back of the compressor.
I filled the mounting holes in the back of the compressor with styrene and then drilled and tapped them for 0-80 screws. ( bottom left of photo ).

The hole for the headlight in the access door is covered with a round cap and a strip of styrene is glued to the front on either side of the this door.
Two holes are drilled in each of the styrene strips for mounting the compressors.
The back of one of the compressors is fastened in place on the smoke box front ( bottom left of photo ).
The front half of the two compressors are at the top of the photo.

SAM_1129_zpsjdp1l8zs.jpg


This is how it looks with the compressors and the feedwater heater mounted in place.

SAM_1130_zpsizleivwf.jpg


This is fit onto the front of the smoke box and the piping is attached.

SAM_1134_zpsbpofks4u.jpg


The throttle linkage is run along the right side from the cab to the lever on the side of the smoke box.
The lines are also run down from both sand domes.

SAM_1132_zpshvn01t6l.jpg


The power reverse is mounted to the side of the boiler over the two rear wheels and and the mechanical oiler is mounted over the front wheel.

SAM_1135_zpsbopoveeq.jpg


A mounting bracket is built for the mechanical oiler on the front chassis.

SAM_1137_zpss8lxukuu.jpg


The water pump is mounted in place on the left side and the steam and water pipes are fastened in place.
There is also an air tank mounted on this side and another air tank will be mounted on the other side of the boiler.

SAM_1136_zpsqgx7whro.jpg

 


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#36 MH81 ONLINE  

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Posted February 20, 2016 - 09:12 AM

My goodness, look at the attention to detail.
I don't know why I'm surprised, but it always staggers me how good your eyes are for stuff like this.
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#37 KennyP ONLINE  

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Posted February 20, 2016 - 06:43 PM

Really cool and informative! Looking great as always!


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#38 UncleWillie ONLINE  

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Posted February 25, 2016 - 12:48 PM

I saw this today and thoughmabout your build


http://www.altdriver...1-steam-engine/
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#39 tiretrx ONLINE  

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Posted February 25, 2016 - 01:23 PM

Man, she's a monster Ray. Always enjoy your posts :thumbs:


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#40 jdcrawler ONLINE  

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Posted March 01, 2016 - 03:03 PM

Running the plumbing lines on both sides of the boiler.

SAM_1140_zpsvkggicyy.jpg

SAM_1141_zpsvurhxwnt.jpg


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#41 KennyP ONLINE  

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Posted March 01, 2016 - 03:45 PM

I could never do that! Glad you can!


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#42 TomLGT195 OFFLINE  

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Posted March 01, 2016 - 05:43 PM

What do you use for that? solid wire?


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#43 UncleWillie ONLINE  

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Posted March 01, 2016 - 09:54 PM

Incredible work.


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#44 jdcrawler ONLINE  

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Posted March 02, 2016 - 12:30 AM

What do you use for that? solid wire?

 

Plastruct makes plastic coated wire that comes in 3/64" ( .047 ) and 1/16" ( .062 ) diameter.

This is really handy for things like this.

The wire retains its shape when bent and can still be glued in place because of the plastic coating.


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#45 glgrumpy ONLINE  

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Posted March 02, 2016 - 08:05 AM

Willie, that engine shows No steam and smoke in that video. Early I could see a Diesel engine behind it.  Couldn't be being pushed could it?  Something isn't right there.


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