grahame Posted March 4, 2020 Share Posted March 4, 2020 1 hour ago, thegreenhowards said: The instruction go into quite some detail about how to glue them together which is completely insane for stuff this small. I'm under the impression that the smaller the part the more difficult it can be to solder. I've just watched a video of the assembly of a 1:700 scale PE brass radar array (for a battleship). The parts were almost microscopic and were glued together with a minute globule of glue applied on the pointed end of a pin. I don't think I've seen an iron bit small enough to be used. And of course some of tiny parts were attached to plastic mouldings which is not really suitable for soldering. Sometimes I think it is often more a matter of horses for courses. 3 Link to post Share on other sites More sharing options...
RMweb Premium polybear Posted March 4, 2020 RMweb Premium Share Posted March 4, 2020 46 minutes ago, PupCam said: Well what an excellent day! The entire Mimram Modellers group (both fully paid up and honourary members) had the honour of a day excursion to Little Bytham. What a superb layout it is, a beautiful rendition of times past on the ECML. Three words really do sum it up when you see it in the flesh, consistently high standards. Some layouts have beautiful stock running on a "trainset board", others have beautiful scenery with track barely better than Hornby Dublo 3 Rail (no offence intended to 3 rail collectors!), some have exquisite trackwork in an unbelievable environment and in each case something jarrs. As you all know, not so LB; the topography is entirely believable (easily checked on the way to the pub for lunch), sublime trackwork, beautiful architectural modelling, realistic and reliable stock (with the possible exception of the odd Deltic), historically accurate situation and operation etc etc. Unfortunately Her Majesty's Railway Inspectorate have had to be called in to investigate a serious accident when an Up Express ran into the rear of a stationary Pullman train held just north of the M&GN bridge. The derailed Pullman cars fouled the adjacent line derailing a number of wagons. Initial indications are that the signalling systems were operating correctly and human error was the likely cause. It is too early to say whether any railway staff will be prosecuted. Anyway, many thanks to Tony and Mo for the invitation and their hospitality for a thouroughly enjoyable day. We look forward to our next visit! Alan Many thanks to Tony, Mo, Alan and David for a most excellent day out I couldn't resist a selfie...... And as previously reported, Her Majestey's Railway Inspectorate have summoned the CME, a Mr. T. Wright, for a meeting to explain all actions leading up to the accident. Meanwhile, the Little Bytham Chronicle have seized upon the opportunity to run with the headline "Carnage at Little Bytham", which is the most exciting story since four milk churns fell from the back of Farmer Smyth's trailer seventeen years ago, almost wiping out Mrs. Jones' cat in the process. More pictures to follow.... 4 1 4 1 Link to post Share on other sites More sharing options...
RMweb Premium Compound2632 Posted March 4, 2020 RMweb Premium Share Posted March 4, 2020 Railways Archive: https://www.railwaysarchive.co.uk/eventsummary.php?eventID=1873 Accident at Little Bytham on 26th February 1853 Accident Summary Location: Little Bytham Train Operator: Great Northern Railway Primary Causes: Driver error, signaller error, excessive speed Secondary Cause: Inadequate planning Result: Signal passed at danger, rear collision 0 fatalities, unknown number of injured 2 3 4 Link to post Share on other sites More sharing options...
RMweb Gold PupCam Posted March 4, 2020 RMweb Gold Share Posted March 4, 2020 History repeats itself! 1 Link to post Share on other sites More sharing options...
RMweb Gold Barry Ten Posted March 4, 2020 RMweb Gold Share Posted March 4, 2020 9 hours ago, Steven B said: And aircraft - not just a recent building technique either; De Havilland Mosquito was glued together. A well chosen adhesive used properly should do a better job than a poorly formed solder joint. Steven B. When I was in my teens I read J E Gordon's "The New Science of Strong Materials" (1968) which goes into quite entertaining detail about various joints, bonds and failure modes. I seem to remember one of his examples was that a properly formed glued joint should be stronger than the wood itself, and not likely to be the first thing that fails. Al 5 Link to post Share on other sites More sharing options...
Popular Post Woodcock29 Posted March 4, 2020 Popular Post Share Posted March 4, 2020 (edited) I've finished the Holden triplet I've been building and which I posted a few weeks ago in its brass state. Its in the rear platform behind the C12 in the photo below in my main station, Nottsborough Victoria and then again in Great Steeping on my secondary route. Talking of old kits the C12 was built about 40 years ago and was my first brass kit. Recently its had a motor/gearbox upgrade and been lined and had the vacuum and stream heating pipes added along the valence. Andrew Edited March 4, 2020 by Woodcock29 typo and added a comment 22 1 9 Link to post Share on other sites More sharing options...
johndon Posted March 4, 2020 Share Posted March 4, 2020 (edited) 2 hours ago, grahame said: I'm under the impression that the smaller the part the more difficult it can be to solder. I've just watched a video of the assembly of a 1:700 scale PE brass radar array (for a battleship). The parts were almost microscopic and were glued together with a minute globule of glue applied on the pointed end of a pin. I don't think I've seen an iron bit small enough to be used. And of course some of tiny parts were attached to plastic mouldings which is not really suitable for soldering. Sometimes I think it is often more a matter of horses for courses. I super glue most of the PE on my 1/350 and 1/200 scale ships and as they are under no stress, the glue is more than sufficient. When glueing the PE to plastic, especially railings, I often use PVA as it is so easy to clean up leaving no trace of the glue and, again is more than up to the task of holding the PE. Of course, none of these models are expected to move at a scale 100 mph... Edited March 4, 2020 by johndon 2 1 Link to post Share on other sites More sharing options...
johndon Posted March 4, 2020 Share Posted March 4, 2020 14 hours ago, Clive Mortimore said: The railway modellers were in awe of the wonderful detail and weathering of the aircraft, soldiers and vehicles. Military modellers are, for the most part, miles ahead of us railway modellers when it comes to weathering. 4 Link to post Share on other sites More sharing options...
RMweb Premium PJT Posted March 5, 2020 RMweb Premium Share Posted March 5, 2020 44 minutes ago, Barry Ten said: When I was in my teens I read J E Gordon's "The New Science of Strong Materials" (1968) which goes into quite entertaining detail about various joints, bonds and failure modes. I seem to remember one of his examples was that a properly formed glued joint should be stronger than the wood itself, and not likely to be the first thing that fails. Quite right too. I read that in my student years. Never forgotten that quote. Pete T. 1 1 Link to post Share on other sites More sharing options...
RMweb Premium St Enodoc Posted March 5, 2020 RMweb Premium Share Posted March 5, 2020 1 hour ago, Barry Ten said: When I was in my teens I read J E Gordon's "The New Science of Strong Materials" (1968) which goes into quite entertaining detail about various joints, bonds and failure modes. I seem to remember one of his examples was that a properly formed glued joint should be stronger than the wood itself, and not likely to be the first thing that fails. Al That was one of our standard texts at Uni! 2 1 Link to post Share on other sites More sharing options...
RMweb Premium St Enodoc Posted March 5, 2020 RMweb Premium Share Posted March 5, 2020 26 minutes ago, PJT said: Quite right too. I read that in my student years. Never forgotten that quote. Pete T. Unfortunately it doesn't apply to my woodworking... 3 1 Link to post Share on other sites More sharing options...
RMweb Premium St Enodoc Posted March 5, 2020 RMweb Premium Share Posted March 5, 2020 12 hours ago, grahame said: Some modern etched metal kits still suggest gluing. I guess the advent and availability of cyanoacrylate (super-glue) makes it convenient. And apparently it is used in some product, including car, manufacturing. I seem to recall that cyanoacrylate was recommended for the George Alan footbridge, presumably to eliminate the risk of heat distortion. Link to post Share on other sites More sharing options...
Woodcock29 Posted March 5, 2020 Share Posted March 5, 2020 3 hours ago, St Enodoc said: I seem to recall that cyanoacrylate was recommended for the George Alan footbridge, presumably to eliminate the risk of heat distortion. Having built the Kemilway version of that footbridge, distortion was something I had to be very wary of. I would think a lot of it could be built using cyanoacrylate but it wouldn't have been my choice. 1 Link to post Share on other sites More sharing options...
grahame Posted March 5, 2020 Share Posted March 5, 2020 7 hours ago, johndon said: Of course, none of these models are expected to move at a scale 100 mph... . . . . just 30 knots in water for some. An RC speed boat I once made (many years ago) was all glued together with cascamite (a powdered resin wood glue) and carried a lead acid motorbike battery to run the motor. 2 1 Link to post Share on other sites More sharing options...
RMweb Premium polybear Posted March 5, 2020 RMweb Premium Share Posted March 5, 2020 9 hours ago, Compound2632 said: Railways Archive: https://www.railwaysarchive.co.uk/eventsummary.php?eventID=1873 Accident at Little Bytham on 26th February 1853 Accident Summary Location: Little Bytham Train Operator: Great Northern Railway Primary Causes: Driver error, signaller error, excessive speed Secondary Cause: Inadequate planning Result: Signal passed at danger, rear collision 0 fatalities, unknown number of injured HMRI have made the unusual step of issuing an advance press release, confirming that the Driver of the Loco (a Mr. P. Bear), whilst unfamiliar with the route was fortunately unhurt, although somewhat shaken and looking nowhere near as white as usual, having been showered with coal. Mr. Bear was somewhat concerned that the Loco, a Peppercorn A1 (to be confirmed) may be damaged, though fortunately this was not the case, with not so much as a scuff on the bufferbeam. The Loco in question was somewhat unusual in that it was not built at Doncaster; instead it was supplied as a kit of parts by DJH Engineering, based in County Durham and assembled most professionally in workshops close to Little Bytham. The condition of the Pullman Cars is unknown, however it is rumoured that much soup was spilled. HMRI expect to interview the CME later today, who at present appears to have "gone to ground". Unconfirmed reports indicate that the Signalman may well be in for a grilling too. 1 1 13 Link to post Share on other sites More sharing options...
Tony Wright Posted March 5, 2020 Author Share Posted March 5, 2020 41 minutes ago, polybear said: HMRI have made the unusual step of issuing an advance press release, confirming that the Driver of the Loco (a Mr. P. Bear), whilst unfamiliar with the route was fortunately unhurt, although somewhat shaken and looking nowhere near as white as usual, having been showered with coal. Mr. Bear was somewhat concerned that the Loco, a Peppercorn A1 (to be confirmed) may be damaged, though fortunately this was not the case, with not so much as a scuff on the bufferbeam. The Loco in question was somewhat unusual in that it was not built at Doncaster; instead it was supplied as a kit of parts by DJH Engineering, based in County Durham and assembled most professionally in workshops close to Little Bytham. The condition of the Pullman Cars is unknown, however it is rumoured that much soup was spilled. HMRI expect to interview the CME later today, who at present appears to have "gone to ground". Unconfirmed reports indicate that the Signalman may well be in for a grilling too. Thanks for a great day, Brian, Also the same thanks to David and Alan. And, particular thanks to David for his hospitality at lunchtime. What a great crash (my fault entirely). After you'd all gone, I investigated. Just a tweak of a coupling was necessary on a Pullman car, then re-railing the rakes, and all was well. The A1 won! I wonder, had 60117 been glued together, there'd have been an even chance that a buffer would have gone, along with a front step and vacuum standpipe (a common feature on many RTR-based models seen on RMweb). No, not even a scuff off the paint. Regards, Tony. 7 Link to post Share on other sites More sharing options...
RMweb Gold tractionman Posted March 5, 2020 RMweb Gold Share Posted March 5, 2020 8 hours ago, Woodcock29 said: That's a lovely looking period layout Andrew, something I am aiming for with my new build -- would love to see more pics of your layout and inf on it (perhaps under Layout Topics?), if poss? all the best, Keith 4 6 Link to post Share on other sites More sharing options...
Tony Wright Posted March 5, 2020 Author Share Posted March 5, 2020 11 hours ago, PupCam said: Well what an excellent day! The entire Mimram Modellers group (both fully paid up and honourary members) had the honour of a day excursion to Little Bytham. What a superb layout it is, a beautiful rendition of times past on the ECML. Three words really do sum it up when you see it in the flesh, consistently high standards. Some layouts have beautiful stock running on a "trainset board", others have beautiful scenery with track barely better than Hornby Dublo 3 Rail (no offence intended to 3 rail collectors!), some have exquisite trackwork in an unbelievable environment and in each case something jarrs. As you all know, not so LB; the topography is entirely believable (easily checked on the way to the pub for lunch), sublime trackwork, beautiful architectural modelling, realistic and reliable stock (with the possible exception of the odd Deltic), historically accurate situation and operation etc etc. Unfortunately Her Majesty's Railway Inspectorate have had to be called in to investigate a serious accident when an Up Express ran into the rear of a stationary Pullman train held just north of the M&GN bridge. The derailed Pullman cars fouled the adjacent line derailing a number of wagons. Initial indications are that the signalling systems were operating correctly and human error was the likely cause. It is too early to say whether any railway staff will be prosecuted. Anyway, many thanks to Tony and Mo for the invitation and their hospitality for a thouroughly enjoyable day. We look forward to our next visit! Alan Thanks Alan, As reported in response to one of Brian's posts as well, what a great day. It would seem fortunate that the Pullman car were parked on a curve, so the kinetic forces went sideways to some extent. When you all next come (please), we'll run the sequence, where such 'calamities' are less likely to happen. As for CREPELLO, I'm afraid she'll (he'll?) have to be shot/destroyed/put-down! Regards, Tony. 2 Link to post Share on other sites More sharing options...
Tony Wright Posted March 5, 2020 Author Share Posted March 5, 2020 10 hours ago, polybear said: Many thanks to Tony, Mo, Alan and David for a most excellent day out I couldn't resist a selfie...... And as previously reported, Her Majestey's Railway Inspectorate have summoned the CME, a Mr. T. Wright, for a meeting to explain all actions leading up to the accident. Meanwhile, the Little Bytham Chronicle have seized upon the opportunity to run with the headline "Carnage at Little Bytham", which is the most exciting story since four milk churns fell from the back of Farmer Smyth's trailer seventeen years ago, almost wiping out Mrs. Jones' cat in the process. More pictures to follow.... A most-dramatic second picture, Brian! Note the pink pliers. I thought all gender-specific colours had disappeared from everyday life, until Mo and I were browsing in a craft shop in Edinburgh last year. She was looking at some jewellery-making bits and pieces, in the section catering for 'ladies', and saw them. I just had to buy them! Regards, Tony. 6 6 Link to post Share on other sites More sharing options...
Headstock Posted March 5, 2020 Share Posted March 5, 2020 15 minutes ago, Tony Wright said: A most-dramatic second picture, Brian! Note the pink pliers. I thought all gender-specific colours had disappeared from everyday life, until Mo and I were browsing in a craft shop in Edinburgh last year. She was looking at some jewellery-making bits and pieces, in the section catering for 'ladies', and saw them. I just had to buy them! Regards, Tony. Morning Tony, there's another one of those stunted LMS vans right in the middle of the picture, or is its compression a result of the accident? Was it an accident, or a convoluted attempt to divest the layout of the aforementioned mini me van? 2 Link to post Share on other sites More sharing options...
jacko Posted March 5, 2020 Share Posted March 5, 2020 On the subject of a scale 100mph, on a OO layout, how long should a train take to travel 20 feet? likewise, at 30 mph and 60mph. (maths was never my strong point at school - I'm a musician at heart). Graeme Link to post Share on other sites More sharing options...
RLBH Posted March 5, 2020 Share Posted March 5, 2020 3 minutes ago, jacko said: On the subject of a scale 100mph, on a OO layout, how long should a train take to travel 20 feet? If one takes the view, as many do, that time cannot be scaled, then as long as it takes a prototype train at 100mph to travel 1,524 feet. On this basis, one scale mile per hour corresponds to a speed of 0.02 feet per second. At scale 100mph, the model is travelling at 2 feet per second, and will take ten seconds to cover 20 feet. At scale 30mph, 35 seconds, and at scale 60mph, 17 seconds. I have taken the liberty of rounding off to the nearest second! If one chooses other scaling laws, other answers are possible. How one should scale time is another question altogether, but one that needs to be answered. Even choosing not to scale it is still making a choice. Suppose you are a sufficiently skilled and dedicated modeller that you build a perfect 4mm:1 foot replica of a pendulum-driven clock. How often does it tick compared to the prototype clock? The scaling law to get that to work out is different from the scaling law needed to make clouds of smoke from your smoke generator to billow in a prototypically correct manner! 1 1 Link to post Share on other sites More sharing options...
RMweb Premium MJI Posted March 5, 2020 RMweb Premium Share Posted March 5, 2020 1 hour ago, Tony Wright said: As for CREPELLO, I'm afraid she'll (he'll?) have to be shot/destroyed/put-down! Regards, Tony. Repaired by Tony Wrights repair clinic. Was first Deltic I saw. Link to post Share on other sites More sharing options...
jacko Posted March 5, 2020 Share Posted March 5, 2020 39 minutes ago, RLBH said: If one takes the view, as many do, that time cannot be scaled, then as long as it takes a prototype train at 100mph to travel 1,524 feet. On this basis, one scale mile per hour corresponds to a speed of 0.02 feet per second. At scale 100mph, the model is travelling at 2 feet per second, and will take ten seconds to cover 20 feet. At scale 30mph, 35 seconds, and at scale 60mph, 17 seconds. I have taken the liberty of rounding off to the nearest second! That's perfect for my needs. many thanks Graeme Link to post Share on other sites More sharing options...
RMweb Gold PupCam Posted March 5, 2020 RMweb Gold Share Posted March 5, 2020 1 hour ago, Tony Wright said: As for CREPELLO, I'm afraid she'll (he'll?) have to be shot/destroyed/put-down! He'll have to be destroyed! Oh no! A sad reminder of September1981 Will he be parked, unloved at the back of the works unloved before the axe man cometh? Alan Link to post Share on other sites More sharing options...
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