3/4" Scale J1e

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Bill Shields
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Re: 3/4" Scale J1e

Post by Bill Shields »

been there, done that.

I put mine together with a dab of clear wood glue to hold it together so that I could drop it in from one end and man-handle (with tweezers) everything into place

after a few years of running all the glue was gone...(or buried in dirt).
Too many things going on to bother listing them.
Asteamhead
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Re: 3/4" Scale J1e

Post by Asteamhead »

A T95 spring arrangement using stiff leaf- and coil springs. Springs will move about 1/8 " at rated load
A T95 spring arrangement using stiff leaf- and coil springs. Springs will move about 1/8 " at rated load
A T 95 tender truck, test assembly_3539 red.JPG[/attachment]
A T95 truck at no load. At rated load (with driver!) all axles will move to about the middle position.
A T95 truck at no load. At rated load (with driver!) all axles will move to about the middle position.
Hello Jack,
May I mention that the stiffness of the (leaf-) springs doesn't matter that much - as long as the equalizers are working freely as intended?
A big advantage then is the horizontal stability of the trucks in case the driver takes place on top of the tender :idea:
Even with very rigid springs It's working fine at the commonwealth trucks under my A`s tender!
Just my two cents :)

Best regards
asteamhead
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A T95 truck at no load. Each axlebox may move about 1/ 4 " independently, just by means of the equalizers
A T95 truck at no load. Each axlebox may move about 1/ 4 " independently, just by means of the equalizers
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JBodenmann
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Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
Very cool parts Asteamhead! Commonwealth trucks can be quite a handful to make. With all the spring and brake rigging it can go on and on. Here are the lids and journal boxes. These parts were all chemically blackened and then clear coated. This is the blackener used and it was purchased from McMaster.
Axle Box1.jpeg
And here they are blackened and clear coated. This is the clear coat used from Ace Hardware.
AxleBox2.jpeg
When painting small parts like these I like to use a carousel, so they can be rotated while painting. The round cardboard is what pizzas come on. I like pizza :D
AxleBox3.jpeg
Asteamhead
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Re: 3/4" Scale J1e

Post by Asteamhead »

Just cool 8)
asteamhead
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Bill Shields
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Re: 3/4" Scale J1e

Post by Bill Shields »

I put a piece of scrap (whatever) on a cheap lazy Susan bearing.

Doing that now with an entire tender

Used up all my wife's extra cookie sheets decades ago
Too many things going on to bother listing them.
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Greg_Lewis
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Re: 3/4" Scale J1e

Post by Greg_Lewis »

JBodenmann wrote: Thu Oct 20, 2022 10:23 am The round cardboard is what pizzas come on. I like pizza :D


Beer, pizza and trains. Life is good. :!:
Greg Lewis, Prop.
Eyeball Engineering — Home of the dull toolbit.
Our motto: "That looks about right."
Celebrating 35 years of turning perfectly good metal into bits of useless scrap.
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LVRR2095
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Re: 3/4" Scale J1e

Post by LVRR2095 »

Here in Maine, pizza is round, but it comes in a square box….
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Bill Shields
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Re: 3/4" Scale J1e

Post by Bill Shields »

Is that anything like: pie are square?
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boaterri
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Re: 3/4" Scale J1e

Post by boaterri »

No, pie are not square, pie are round, cornbread are square.......
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Bill Shields
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Re: 3/4" Scale J1e

Post by Bill Shields »

Some pizza pie are square.
Too many things going on to bother listing them.
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JBodenmann
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Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
I only buy pizza to get the round bit of card board they arrive on. I just eat the pizzas to get rid of them... :lol:
Jack
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JBodenmann
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Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
Here is a little on making tiny cotter pins. I have touched on this before. They will fit into a .020" hole in these .047" pins that hold the journal box lid and hinge together. These little pins were quite a challenge to make.
Jbox50.jpeg

The cotter pins were made from .015" stainless wire.
First one end of the wire was clamped to the steel table and run across the flat surface of the small drill press. Any flat surface will do. Then a vise grip plier was hung on the other end to maintain some tension on the wire.
Jbox51.jpeg
Then the wire was gently draw filed.
Jbox52.jpeg
The wire was filed and measured until it was half thickness. In this case .007".
Jbox53.jpeg
The half round was snipped off 5/16" long and the loop formed around a small rod.
Jbox54.jpeg
The smallest commercially available cotter pins that I know of are .032" diameter. So for our models this technique can come in handy.
Happy Model Building
Jack
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