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Building or fixin things on the SR&CL Ry.
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   Building or fixin things on the SR&CL Ry.
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   Author  Topic: Building or fixin things on the SR&CL Ry.  (Read 9265 times)
tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #140 on: Dec 3rd, 2010, 8:24am »
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After installing all the spring cups and tie plates, I added the spring cups to the equalizer bars.  They took a small amount of sanding to clear.  Made pins from 1/4 inch rod to hold them from sliding off.
 
Tom C.


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tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #141 on: Dec 7th, 2010, 12:17pm »
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With all the parts done,  I could start to put the Bolster assy into the frame.  A shot of two stacked with one Equalizer bar stuck in to get an idea.
 
Tom C.


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tom_srclry_com
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pockets
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #142 on: Dec 7th, 2010, 4:52pm »
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That's gonna be a sweet looking truck, Tom. Do you forsee any issues with the coil spring chewing on the cast cups? I have some experience with cast aluminum vs steel in a moving interface..... None of it particularly good.
 
Greg B.


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Mechanical engineers build weapons, whereas civil engineers build targets.

When the man at the door said," Alcohol, Tobacco and Firearms", I, naturally assumed it was a delivery!
tomc
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #143 on: Dec 7th, 2010, 6:29pm »
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Greg,  
 
I have no experiance to say good or bad.  The springs have a nice round profile on the bottoms so think they would't chaff the aluminum to much.  We will run with it and see.  We can cast more if it turns into a problem.  Our freight trucks use aluminum castings on the spring pockets and show no signs of wear so we shall see.    
 
As a side note,  I don't remeber what we used on the passenger car Alina's trucks.  Most of those parts were fabed up from steel as we had no foundry to make our own back then.  I will try to have a look at hers when over there at the end of the month.
 
Tom C.


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ErieAtlantic7597
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #144 on: Dec 7th, 2010, 9:14pm »
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   Nice looking assemblys there, Tom.  
 
   Bruce


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Dick_Morris
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #145 on: Dec 7th, 2010, 11:07pm »
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*We can cast more if it turns into a problem.*
 
What about boring the aluminum slightly larger and deeper and Loctiting in steel cups? With the aluminum backing them up they could be pretty thin, all you need is a wearing surface. The cups could even be made from a disk and ring made from tubing or pipe to decrease the effort to machine them.


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tomc
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #146 on: Dec 8th, 2010, 10:09am »
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Dick,
 
A good idea.
 
Tom C.


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tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #147 on: Dec 15th, 2010, 1:02pm »
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I got two swing motions inserted into the frame, here is a shot from the top.
 
Tom C.


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tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #148 on: Jan 1st, 2011, 5:41pm »
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I got all six trucks together and started the bottom strap before we stopped and tore into #10's air pump.
 
Tom C.


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tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #149 on: Jan 1st, 2011, 5:45pm »
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A shot of some of the bottom straps sitting on a pile of trucks.  I made the middle bends first as they were eaiser.
 
Tom C.


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tom_srclry_com
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pockets
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #150 on: Jan 1st, 2011, 8:40pm »
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Those are some nice looking trucks, Tom.
 
Greg B.


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Mechanical engineers build weapons, whereas civil engineers build targets.

When the man at the door said," Alcohol, Tobacco and Firearms", I, naturally assumed it was a delivery!
pockets
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #151 on: Jan 4th, 2011, 12:52pm »
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Tom,
How do you mount your brake wheels to the staff. Do you use a taper, with a nut, or a square shaft in a broached hole and a nut on top.
 
Pretty much the same question for the ratchet wheel.  
 
I like the square shafts, but dang those square broaches are expensive!!
 
Thanks,
Greg B.


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Mechanical engineers build weapons, whereas civil engineers build targets.

When the man at the door said," Alcohol, Tobacco and Firearms", I, naturally assumed it was a delivery!
tomc
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #152 on: Jan 4th, 2011, 1:09pm »
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Greg,
 
You are makin the brain cells smoke.  Haven't had to come up with anything that long ago for some while.  I know we weld the ratchet teeth part on but not sure what I did with the hand wheel.  I do know we didn't use a broach as the wheel is aluminum and can be filed easily. I will have to get an answer for you as I can't remember the rest.  Sorry!
 
Tom C.


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tom_srclry_com
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pockets
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #153 on: Jan 4th, 2011, 2:50pm »
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WOW, that was sudden...
 
Okay, now ya created another question.... If you're welding the ratchet wheel to the shaft, that tells me that you're not casting them yourselves. Are you machining them from solid, or have you found a viable, comercial wheel?
 
Greg B.


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Mechanical engineers build weapons, whereas civil engineers build targets.

When the man at the door said," Alcohol, Tobacco and Firearms", I, naturally assumed it was a delivery!
tomc
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #154 on: Jan 5th, 2011, 11:49am »
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Greg,
 
I have answers!  
 
We taper the square shaft and the brake wheel opening and then shove them together.  Takes a little filing but not bad.  
 
I believe Mel made them on our rotory table as we couldn't find a source.  They are Cold Rolled Steel (CRS).
 
Tom C.


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tom_srclry_com
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pockets
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #155 on: Jan 5th, 2011, 2:39pm »
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hanks, Tom. I had similar thoughts, but it's confidence inspiring to be confirmed by those who have "been there and done that..." Say hi to JK for me.
 
Greg B.


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Mechanical engineers build weapons, whereas civil engineers build targets.

When the man at the door said," Alcohol, Tobacco and Firearms", I, naturally assumed it was a delivery!
tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #156 on: Jan 20th, 2011, 10:21pm »
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I was back in the shop for 2 days and got two trucks done with wheels.  Now all that is left is the brake parts and paint on that pair.
 
Tom C.


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tom_srclry_com
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tomc
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Re: Building or fixin things on the SR&CL Ry.
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« Reply #157 on: Jan 20th, 2011, 10:23pm »
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Our mate!
 
Tom C.


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BobbyT
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #158 on: Jan 20th, 2011, 11:26pm »
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Very nice work.

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ErieAtlantic7597
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Re: Building or fixin things on the SR&CL Ry.
 
« Reply #159 on: Feb 2nd, 2011, 10:13pm »
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   REALLY nice trucks there, Tom. WOW, beautiful work.


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