|
Post by qreidford on Jul 9, 2018 17:33:50 GMT
Bob and Pete, thanks for your excellent advice, if I had some suitable material to make a well fitting spacer for the main and trailing axles, but nothing suitable, my milling machine is an X1 which I have stretched to its limits making this loco, unfortunately this can’t extend the table length to really help. Instead what I have used is a hydraulic lifting table which has a good surface, not as good a milling table but I think it’s good enough to get this twist out. I have used some gauge plate under the frame to give a more level bed and a series of parallels to raise the datum on which to rest the frame. Taping a length of paper the length of the frame allowed me to mark out where I took levels. So far I have slackened then removed the central stretcher - then refitted it as well as adjusting the stretcher at the front buffer which was off a tad. I hope that I may have removed the worst but the frame is relatively flimsy with 1/8” thick frames so the back half from the main stretcher back to the drag beam can bend and or twist. The 2-2-2 Stirling used double frames, I suspect the the 4-2-2 should have have beefier frames in the model, I have a couple of drawings of the clarkson version but unfortunately the ones I have don’t show a frame thickness.
Thanks again, I really do appreciate a great deal the help and advice I get here, it’s terrific support.
Cheers
Q
|
|
|
Post by 92220 on Jul 9, 2018 18:07:55 GMT
Hi Q.
I'm going up to the NRM to sort out a load of details under Evening Star. If I have time, I'll see what the stretchers are like on the Stirling Single. If your frames are such that they can twist and bend back to the rear drag beam, I think you will need some lateral stretchers to stop that happening. I'll see if I can see how the frames are supported on the Stirling Single. If I can get photos underneath, I'll let you have copies. It just depends on how much latitude the NRM allows me.
Bob.
|
|
|
Post by qreidford on Jul 9, 2018 18:53:02 GMT
Bob,
That sounds like an interesting trip, when I visited a couple of years ago the Stirling wasnt there! I think it was when it was in London for the railway children production.
I have a few reference photos of the Stirling and also a few extracts from the works drawings. I will be interesting to Hear how you get on there, I wonder if the real loco waggled under power?
If you get a chance it would be very interesting to know how thick the main frames are, and what the scale would be at 1:12 .
Safe journey
Cheers
Q
|
|
61962
Seasoned Member
Posts: 129
|
Post by 61962 on Jul 9, 2018 21:58:44 GMT
Q,
According to Leech & Boddy the mainframes of all the Stirling Singles were 1 1/4" thick, which is 0.111 in 5" gauge. (3mm black plate is 0.112 when cleaned of mill scale).
Eddie
|
|
|
Post by qreidford on Jul 10, 2018 7:13:39 GMT
Thanks Eddie, that will save Bob from having to crawl under No. 1 - wish I had a copy of that book, although it would probably have just scared me even more than the Reeves drawings.
Cheers Q
|
|
|
Post by lankyyorky on Jul 11, 2018 0:29:00 GMT
Apparently Stirling had trouble with frames flexing as a substantial cast stretcher was added immediately behind the smokebox on later locos. If you can PM me your email address I should be able to attach copies of the GA and other drawings.
|
|
61962
Seasoned Member
Posts: 129
|
Post by 61962 on Jul 11, 2018 22:59:39 GMT
Stirling introduced a horizontal fabricated plate stretcher behind the cylinders in 1880. It is showm on a drawing thought to be No 776 and reproduced in Leech and Boddy. Cast stretchers were not normal on Doncaster builds other than for drag boxes. Even when cast stretchers were introduced for swing link pony truck supports, inside motion supports, 2-1 gear fulcrums and the big cruciform stretcher on the pacifics, fabricated plates were still used for the simple frame stretchers.
Eddie
|
|
|
Post by lankyyorky on Jul 12, 2018 0:02:33 GMT
Yes, I believe your correct looking at the drawing, the photo I took at York poking the camera under the boiler showed rounded edges which gave the appearance of a casting.
|
|
|
Post by 92220 on Jul 12, 2018 17:28:07 GMT
Hi.
I've just got back from York. Unfortunately the Stirling Single was 'out of reach', on the turntable, and by the time I had done the work on Evening Star the Museum was 'heaving with public so they wouldn't let me get on the turntable.
Bob.
|
|
|
Post by qreidford on Jul 12, 2018 18:01:16 GMT
Hi. I've just got back from York. Unfortunately the Stirling Single was 'out of reach', on the turntable, and by the time I had done the work on Evening Star the Museum was 'heaving with public so they wouldn't let me get on the turntable. Bob. Thanks for trying Bob, much appreciated, interesting comments regarding additional staying to prevent movement, it would be very interesting to see where it was and more to the point how on earth did they find space! On a positive note from me, I appear to have sorted out my alignment problems with all wheels firmly on the rails, not sure exactly what the problem was but loosening most of the stretchers, adjusting, measuring etc. Etc seems to have done the trick. All I need to do is to get back to where I was! Cheers Q
|
|
|
Post by 92220 on Jul 14, 2018 7:19:15 GMT
Hi Q.
I'm pleased to hear you got it sorted.
Bob.
|
|
|
Post by qreidford on Aug 2, 2018 0:02:46 GMT
Hi, Despite the warm weather curtailing painting I have been occupied putting the finished bits together and see if it still works. Ages spent fettling the various components which I knew required attention and almost foiled by the lubricator not working (wrecked one way clutch by adding washers where there should have been none - so lever moved but not grabbing the shaft) hopefully I can attach a video showing that it all works with timing sorted it needing running to bed the various stuffing boxes. So back to painting now. Cheers Q Ahh video attachment seems a problem, I’ll try in a new post. youtu.be/-Qv17oM7F1ADoes this work?
|
|
barlowworks
Statesman
Now finished my other projects, Britannia here I come
Posts: 874
|
Post by barlowworks on Aug 2, 2018 6:30:11 GMT
Video worked ok for me, and it seems to be running beautifully. Well done.
Mike
|
|
|
Post by GWR 101 on Aug 2, 2018 6:44:39 GMT
Hi works for me too, nice workmanship, it must be very satisfying to get to this stage after all the time and hard work. Regards Paul
|
|
|
Post by Deleted on Aug 2, 2018 6:49:30 GMT
Very impressive Q....she's running great sir...
Pete
|
|
|
Post by qreidford on Aug 3, 2018 22:37:55 GMT
Thought that I should share this video link which has just been passed to me from a fellow club member. youtu.be/JGyjqVkz638It shows the real Stirling Single on the GCR in previously unseen sequences which were consigned to the cutting room floor but thankfully someone has managed to resurrect the pieces. Good detail of cab, nothing like mine! But also a curious,hatch on the roof which looks very much like something cut out and patched for some reason -any ideas? Hope you enjoy this - just a shame that the aspect ratio of the aerial shots has been rather stuffed. Cheers Q
|
|
|
Post by Deleted on Aug 4, 2018 8:35:00 GMT
That's a great piece of film Q...thank's for sharing.....the Stirling came up in conversation at Bob's memorial this week....in particular the 1938 launch of the new Flying Scotsman train when they brought the old girl out from retirement for the 'press' run. Interestingly dear Bob was on that very train...I guess he must have been a cleaner back then at only 16 years of age. There was also chat on how it was Gresley who saved this beautiful loco by physically hiding it away...I do love talking to old engineman...the tales never get boring.... Regarding the hatch...usually this would be so that lifting chains can reach their lift points....at least, that's what's for on 4472. Admittedly No.1's cab doesn't go all the way back to the drag box so a little questionable if that is it's true purpose? Pete
|
|
|
Post by jon38r80 on Aug 5, 2018 9:12:50 GMT
A very pretty Loco. Enjoyed that short film.
|
|
|
Post by qreidford on Sept 6, 2018 0:15:00 GMT
Hi, Still faffing around on the painting! Mainly I’ve been ‘adjusting’ things - after I get components painted I find that they no longer fit! Smoke box front not lined up so had to be shimmed and that led to dings in the paint work, strip and repaint then the valance plate over the lubricator didn’t fit so had to be filed and repainted, etc etc. However I am making slow progress but a couple of questions. Bob, I’m hoping you can shed some light on the colour of the main driving wheel splasher covers, I had thought these would be light green as the perforated face but I have seen some images of models (notable aster gauge 1) which shows black tops to these, I’m not sure that this is correct even although I prefer the light green I am struggling to find an accurate reference but black running into the green of the adjacent sand boxes doesn’t seem right to my eyes - guidance would be much appreciated. Secondly, although some time away, the handrails... they are simple being curved on the front of the smoke box and then running straight down the boiler to the cab - how do I tackle these? The smoke box front brackets are presently screwed in and they are blind so one option is the bend and fit a small curved section then fit the straight elements with a transition curve to meet the curved section on the smokebox front with the joint pinned (the stainless rail is a tube so inserting a suitable pin is not impossible. OR do I bend up the whole thing and push the smokebox front fixings into tight holes rather than threaded ones and after threading through the boiler fittings pull the whole assembly up by using a nut inside the cab to engage with the ends of the handrail? This must have been done hundreds of times but I’m damned if I can find any reference as to what to do.
Cheers Q
|
|
|
Post by 92220 on Sept 6, 2018 11:22:42 GMT
Hi Q.
You are in luck! The top surface of the splashes should be light green.
Bob.
|
|