Author Topic: Coupling rod drawings  (Read 316 times)

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Offline hornbeam

Coupling rod drawings
« on: June 21, 2018, 04:55:38 PM »
Hi,

Does anyone know where I could get a set of drawings of a GWR Prarie tank. I’m after the coupling rods before I draw my own up ( we’ll get someone to)

Thanks

Simon

Offline LankyTank

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Re: Coupling rod drawings
« Reply #1 on: June 22, 2018, 08:31:36 PM »
Simon

Perhaps you could consider the owners of pantograph milling machines, they may have already produced said items -John Taylor (Un common kits) or Dave Walker (Cromford Designs) immediately spring to mind. But, beware, if you get a set of rods machined to the dimensions on a GA, will your model be built to the same dimensions?

Just a thought

Barry

Offline Gavin_B

Re: Coupling rod drawings
« Reply #2 on: June 22, 2018, 10:25:21 PM »
Does any one know if the live steam and electric GRS rods are the same?

I have an electric one here I could do the CAD work from.


Offline Traininvain

Re: Coupling rod drawings
« Reply #3 on: June 23, 2018, 09:20:22 AM »
There's a GA of a 45XX in GWR Journal issue 16 and  a letter on coupling rods in issue 46:

4555 A Preservation Pioneer
Gerry Beale   
Issue 16 (1995)
p.689
The history of 45xx 2-6-2T No 4555. Includes the General Arrangement drawings for the 4555-74 series

and

Coupling Rods Letter
Issue 46 (2003)
p.360
Follow up information with particular reference to 44xx & 45xx classes

You can search the contects of these magazines here: http://gwrjournal.com/

Ian

Offline hornbeam

Re: Coupling rod drawings
« Reply #4 on: June 23, 2018, 09:52:25 AM »
Thank you all for the help.

The rods on the live steam and Electric are the same. What’s made the real need to change them is that the crank pins on slaters wheels are smaller.