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Post by Deleted on Dec 29, 2013 22:11:11 GMT
I've also been following this project on FB... great stuff..  Pete |
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Post by Deleted on Dec 29, 2013 22:21:57 GMT
This is really fascinating stuff and a real eye-opener for many of us. I'd heard that polystyrene was used for the pattern, but had no idea it was built up in layers. Pray tell me, how is the polystyrene cut to shape? The edges look very smooth.
Julian - it was the CLAN frame plates that were scrapped, not the PATRIOT!
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jma1009
Elder Statesman
Posts: 5,922
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Post by jma1009 on Dec 29, 2013 22:41:32 GMT
hi superseven,
ive been suitably admonished and apologise to all re my error! so many 'new builds' to keep track of these days!
cheers,
julian
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Post by Deleted on Dec 29, 2013 22:52:24 GMT
This is really fascinating stuff and a real eye-opener for many of us. I'd heard that polystyrene was used for the pattern, but had no idea it was built up in layers. Pray tell me, how is the polystyrene cut to shape? The edges look very smooth. Julian - it was the CLAN frame plates that were scrapped, not the PATRIOT! Having done a lot of work with polly myself in film work I wonder if it's cut the same way as I would do it , that being with a hot wire. Pete |
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Post by charley on Dec 31, 2013 19:48:14 GMT
The original Patriot used to visit Rugby each year for Remembrance as where I worked at Rugby had pictures of the locomotive with wreaths. Within the Rugby depot is a War Memorial for LNWR and LMS staff who lost their lives in both wars. I worked at the depot until 2007 and I wish you all the best with your project all the best with your endeavours.
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JDEng
Part of the e-furniture
Posts: 384
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Post by JDEng on Jan 1, 2014 8:59:31 GMT
I keep going back to have a look at that "machined" photo....Isn't that a lovely Bit'o Kit ??.....Are those grooves between the studs for a copper ring gasket seal ??....EDIT}---- Hang on, is that PETE WATERMAN wielding a needle gun in one of those photos  ? LoL Alan; I suspect the "grooves" are actually the edges where the joint faces have been relieved to put more pressure on the gasket but I'm sure JordanLeeds would be able to confirm this. JordanLeeds: It's a lovely photograph of the machined cylinder, shame it's been a scrapper. Would I be right in thinking you can just see some evidence of the ovality at the top of the main cylinder bore where it doesn't appear to have "cleaned-up" properly or is it just my eyesight or marks on the casting/photo? I've also sent you a pm by the way. Kind regards, John. |
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Post by ejparrott on Jan 5, 2014 16:05:37 GMT
I've also been following this project on FB... great stuff.. Pete +1 John Hastings-Thompson came to RMES last year to give us a winter talk. It's my intention to ask him back again in a few years for another talk, updated, and for the benefit of new members who missed the first talk on a very interesting project. I can highly recommend the talk he gave us. |
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Post by Deleted on Jan 5, 2014 22:08:14 GMT
As there seems to be a fair amount of interest in full size new-build projects on this forum (and why not, it's only model engineering in 12" : 1 ft scale), it might be worth mentioning that there is a website devoted to the subject: newbuildsteam.com/It's astonishing that in the UK alone, there are currently over 20 new-build projects! Some are only pipe dreams, but others are now quite advanced, and should follow Tornado onto the rails in the not-too distant future. |
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Post by greenbat on Jan 5, 2014 22:50:46 GMT
Out of interest, why are there 2 P2s? And how come one is being comprehensively redesigned to address faults, while the other is the wrong shape for its name, and appears to be having frames done already?
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Post by Deleted on Jan 5, 2014 23:08:17 GMT
As there seems to be a fair amount of interest in full size new-build projects on this forum (and why not, it's only model engineering in 12" : 1 ft scale), it might be worth mentioning that there is a website devoted to the subject: newbuildsteam.com/---------- and should follow Tornado onto the rails in the not-too distant future. ............... Assuming that RAILTRACK let them, of course...Seriously, have the "Steering Committees'" of these projects actually been granted "approval to run" as it were, for the proposed designs being built ??--------- |
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Post by GeorgeRay on Jan 6, 2014 16:31:25 GMT
it's only the concern of Railtrack if it is intended to run on the national network. Certainly the H2 at Sheffield Park is not intended to do so and may be on rails in the not too distant future.
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Post by Deleted on Jan 6, 2014 19:45:35 GMT
it's only the concern of Railtrack if it is intended to run on the national network. Certainly the H2 at Sheffield Park is not intended to do so and may be on rails in the not too distant future. --------------------------------------- Quite so..I was just following on from the TORNADO mention ie}--- it can run on Railtrack...I would imagine that most of these will spend the greater part of their time revenue-earning on Heritage lines ??...........Either way it's a great time to be involved with live steam on rails !! |
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Post by ettingtonliam on Jan 7, 2014 9:42:44 GMT
Railtrack?? Network Rail surely?
Richard
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Post by Deleted on Jan 7, 2014 12:13:27 GMT
Hang on!!-------give me time to catch up LoL !!------- That's one of the drawbacks of Living in the Past ( Uh-oh, I feel a song coming on---------- www.youtube.com/watch?v=EsCyC1dZiN8 )---Well-spotted RICHARD...Thanks matey !! |
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pault
Elder Statesman
Posts: 1,502
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Post by pault on Jan 7, 2014 13:24:40 GMT
Most if not all the new builds intended for main line running are being done from the word go with the involvement of a Vehicle Acceptance Body meaning that as the build progresses the boxes are ticked for main line running.
With so many new builds in progress this could be the resurrection of British manufacturing, we could supply new build steam locos to the rest of the world. Oh hang on I think we have already done that.
The two P2’s are different, one will represent Cock of the North as built rotary valve gear, non stream lined, and one as rebuilt by Gresley with walschaerts valve gear and the A4 front end. As to the two different approaches I know where my money is going. Sadly I suspect only one will make it into steam.
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Post by jordanleeds on Aug 10, 2014 21:40:08 GMT
Apologies for not Posting in here for some time, Recent progress has seen us Complete the set of 3 cylinder castings with the two outside cylinders cast, The Locomotive has now been Wheeled using its proper axleboxes and A start has been made on the Inner firebox with the Inner doorplate being formed in copper
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Post by Jim on Aug 10, 2014 22:18:29 GMT
As others have said, this is a fascinating thread. Thank you jordanleeds for creating it and please keep posting updates.
Jim
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jma1009
Elder Statesman
Posts: 5,922
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Post by jma1009 on Aug 10, 2014 23:10:51 GMT
i do hope that the centenary of WW1 gives an added boost to the above project. when in my youth i was a choirboy and one of our then very elderly choristers had served in WW1, and Remembrance Sunday Service still had many of those who had served in the Great War, all by then elderly 'gents' who never talked about what happened. later i became a bellringer and one of our ringers then aged 90 was a guy called Fred Hannington. he had survived the Somme and the whole of WW1, then lost an arm in a shunting accident at Cardiff Central in 1919 when one of his arms was squashed between 2 buffers. he carried on bellringing with only one arm for the next 65 years. my great uncle sidney was lost in one of the WW1 tanks and is recorded on the memorial at Runnymede. i have my great grandfather's 'trench art' in the form of a framed embroidered portion of his army bed blanket cheers, julian  |
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Post by Deleted on Aug 10, 2014 23:36:49 GMT
Least we forget, eh ??
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Post by suctionhose on Aug 28, 2014 11:44:31 GMT
I have not more than a basic understanding of Foundry techniques but find it a very interesting field of expertise.
Regarding the cylinder casting process, (perhaps JordanLeeds would comment), is the mould made with normal foundry sand?
Is it possible to ram the sand into all the passages with an expectation that it will stay put when the metal is poured?
Does the mould material required anything like resin sand, or something like shell cores used to be?
Any elaboration on this would be good to read.
Thanks
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? LoL
