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Post by 92220 on Sept 29, 2017 18:12:27 GMT
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Post by 92220 on Sept 29, 2017 18:21:09 GMT
The coupling on the tender (Hope it comes out this time!):-
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Post by 92220 on Sept 29, 2017 18:25:38 GMT
I've just noticed that the 2 links either side of the drawhook, appear bent. That is an optical illusion. The links have a 0.05" set in them to accommodate the difference in width of the drawhook and the top trunnion.
Bob
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mbrown
Elder Statesman
Posts: 1,724
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Post by mbrown on Sept 29, 2017 18:41:28 GMT
If I remember correctly, the front coupling is a Southern Railway design (as on Bullied Pacifics) and the tender one is a "modern" BR design as fitted to (e.g.) Class 47s. I hadn't realised that design went back to steam days - and if the SR design was fitted to 92220 "at birth" it raises some interesting questions!
But your workmanship is a treat to look at!
Malcolm.
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Post by Jim on Sept 29, 2017 20:27:11 GMT
Those couplings are absolute gems in themselves Bob. You have done a superb job. Jim
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44767
Statesman
Posts: 529
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Post by 44767 on Sept 29, 2017 21:42:37 GMT
Superb work as usual Bob! When you can't tell the scale of what you're looking at in a photo it must be absolutely correct in every detail.
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Post by 92220 on Sept 30, 2017 11:04:20 GMT
Thanks guys for those kind words. Having the works drawings does make it easier though!
Bob.
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don9f
Statesman
Les Warnett 9F, Martin Evans “Jinty”, a part built “Austin 7” and now a part built Springbok B1.
Posts: 960
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Post by don9f on Oct 13, 2017 20:13:04 GMT
Hi Bob, I have just started looking at my 9F tender regarding its overhaul and have found that the (Hewson) drawhook tail is a bit bent. In view of the excellent hooks that you have made, is there any drawing info you could show, primarily for the tender hook, but for interest, the engine as well?
When researching such things years ago with regard to the restoration of 92214, which came out of Barry scrapyard with no engine hook or coupling, I remember seeing a very few photos of BR 9s with the same type of coupling on the engine, as the tender. We could not locate a "proper" coupling for the engine and so along with the hook, used one from a Class 37 diesel. No adverse effects were ever witnessed when coupling anything with the diesel type coupling, so it would be interesting to understand just why the 3 link screw coupling was specified for the 9s? Maybe it was to do with overhang and their ability to travel over 4 1/2 chain radius curves, not something I think we ever encountered when I was involved.
Cheers Don
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Post by 92220 on Oct 14, 2017 8:28:03 GMT
Hi Don.
You are more than welcome to a copy of my drawing. The draw hook on the engine is the same as on the tender. It's just the length of the tail that is different, due to the difference in the depths of the stretchers at the front of the loco and the back of the tender. It's the couplings that are totally different. Do you have a CAD program? If so, will it read Autocad .dwg files? If not, I could send you the .dxf file which most CAD systems will read. If you don't have a CAD program, I can try and photograph the drawing as a series of .jpg files. The drawing is quite large as I always produce the drawing, and then around it, I do lots of sketches that show all the tool paths, on the mill, to produce the various shapes.
Bob.
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don9f
Statesman
Les Warnett 9F, Martin Evans “Jinty”, a part built “Austin 7” and now a part built Springbok B1.
Posts: 960
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Post by don9f on Oct 14, 2017 10:23:59 GMT
Hi Bob, I don't have CAD I'm afraid....often thought about it but never done anything about it! Is there any free CAD software I could try, that would read your file? If not, I'd be happy with the jpg files.
Thanks very much Don
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Post by 92220 on Oct 14, 2017 12:04:16 GMT
Hi Don.
I don't know of any free CAD software that will read Autocad. Not to worry. I'll take photos. I'll let you know when it's ready.
Bob.
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Post by Roger on Oct 14, 2017 12:15:51 GMT
Hi Bob, I don't have CAD I'm afraid....often thought about it but never done anything about it! Is there any free CAD software I could try, that would read your file? If not, I'd be happy with the jpg files. Thanks very much Don Hi Don, Check out Fusion360, I'm sure that will read all of the popular file types and it's free to private users.
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Post by miketaylor on Oct 14, 2017 12:54:18 GMT
Just google for Autocad reader
They have a free download that lets you read autocad drgs
Mike
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peteh
Statesman
Still making mistakes!
Posts: 760
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Post by peteh on Oct 14, 2017 14:58:29 GMT
Also check out draftsight from dassualt systems - free autocad clone which reads native dwg files.
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Post by 92220 on Oct 14, 2017 16:37:42 GMT
You learn something new every day!!!! I googled AutoCAD Reader, as Mike said and AutoCAD do a free reader!
Don, if you can get one of these free programs, that is the easiest way to get the drawing to you, and you will have it as a single file rather than a number of files. Let me know if you want to go with a reader or if you want it as jpg files.
Bob.
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Post by 92220 on Oct 14, 2017 17:55:07 GMT
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Post by Deleted on Oct 14, 2017 18:31:02 GMT
I like, I like very much......
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Post by Cro on Oct 14, 2017 18:34:29 GMT
Wait till you see it in person Pete, its just a work of art.
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don9f
Statesman
Les Warnett 9F, Martin Evans “Jinty”, a part built “Austin 7” and now a part built Springbok B1.
Posts: 960
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Post by don9f on Oct 14, 2017 19:24:38 GMT
Hi Bob, I have just downloaded and installed a free version of Fusion360 as per Roger's suggestion, so I'm ready to have a go with that single file!
Cheers Don
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Post by Jim on Oct 14, 2017 20:38:12 GMT
Wait till you see it in person Pete, its just a work of art. Add Pete's Flying Scotsman and we have two great works of art to gaze at. Jim
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