Rallymatt
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Posts posted by Rallymatt
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Nice work Garry, those photos will be making a few sweat! TBH power banks really shouldn’t be needed in a loco that long with 12 wheels collecting current and some hefty weight to it. Hornby have obviously gone all out on weight. What are you squeezing the 50 chassis into? Or do we have to wait and see? 😁
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Getting trains running is an important milestone 😁 its superb so many people have embraced building a layout with TT:120 and so many varied plans and scenes 👍
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It’s a very common idea to require de-soldering of some wires to allow removal of the pcb. Many manufacturers do this, Piko, Roco etc. in comparison that little bit of wire is very generous! There is some logic here, if you are heading inside the chances are you are quite confident and so de-soldering and re-soldering wires on pads is pretty straightforward and probably a lot more robust than a series of tiny connectors.
On the subject of power banks, remember there is a 40% smaller one coming from Hornby.
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That’s a great idea. What is quite nice is that it’s a real old mix, we are all doing different stuff but everyone has the hobby at heart and with a TT:120 flavour 😁
Hollybush is well worth watching, 460 subscribers, pure TT:120 and some magical videos with an amazing soundtrack. I often find it very relaxing.
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Ohhh Cheers guys! TBH I did repaint a BR Blue 08 black to get an early livery….. then Hornby announce the green one! 🤣
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I have some of the magnetic couplings here, they are a single magnet so will need to be coupled as a matching pair like WHWW, a magnet only has a N or a S pole, if they don’t hook up, use the other one. Nicely moulded and much better fit than the WHWW ones and being thermo plastic they should last.
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The Hornby magnetic couplings are polarity dependent just like the WHWW ones are, just try the opposite one. They are moulded plastic and fit NEM pockets perfectly so I can see them selling well when they become available. That’s an impressive line up of diesel traction 😁
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Thanks Garry, nothing like some first hand knowledge 👍
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So well in the steam period. I know there are some differences in the scheme, some had black ends, I presume early versions before the blue was extended round to the corridor connections. I think the sole bars were done in brown at some time too. There comes a time when I am happy to say ‘that’s close enough for me’ 🤣
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I have just had some paint arrive from RailMatch for a little experiment. Blue Grey livery started to appear in late 60’s, even with some steam services.
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Glad that the soldering has had benefits Dave.
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You are correct, some have fitted the decoder in the wrong way, Big Top realised. The instructions could be done better as the plug on the decoder is not shown, it relies on people paying attention to the components illustrated on the top of the decoder to get orientation correct, and also looking at that huge white arrow painted on the loco PCB, but how many people would realise what that refers to?
Fortunately N18 sockets and connections are configured so that if inserted incorrectly no harm is done. They will even have limited operation. -
There is a bit of a seasonal decline in activity too. In the UK the sun has made a couple of appearances! Quite a few people have other distractions, even the busy TT:120 pages have been a bit quieter until the latest releases landed
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Stiffness won’t be helping but it’s all about the angles due to length of the class 50 as @ntpntpntp said. I was thinking about what he was saying and it makes a lot of sense.
Hornby would have been testing with the supplied couplings -
Logic points to the couplings. With magnetic couplings the assembly is a fixed link between both KK Mechs. On the original couplings there is some flex in the point at which both couplings join and through the coupling assembly itself.
The wheelbase of the towed stock starts having an effect. A coach bogie wheel base is substantially shorter than a vent van. If you project out the chords (wheel to curve interface) the angle is much more acute the longer the fixed wheel base, causing more drag. That will increase tension in the coupling system. I am sure magnetic couplings are generally only supplied with bogie (very short wheel base) stock
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I’d try that before snipping anything. Sometimes the Kinetic Mechanism needs a bit of manual coaxing to sit into place and run smoothly.
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The coupling shanks look like they could be a bit short for those bends
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@That Model Railway Guy ; just watched your video, nice mix of static and moving shots. 50 looking good. I am glad you referenced the sound quality. On the video it does come across as a bit distorted. I know the sound profile so well as I loaded it onto my BR 130 using an HM DCC N18 decoder and speaker when HM DCC launched. It’s a really great sound profile in person. I did a video of Cold Start last year… I need to include plumes of white smoke and clag 🤣
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A technical feature on the 50 that is great to see is that all axles are driven. It’s been quite common over the years to see only the outer two axles on CoCo arrangements driven. Hornby are certainly putting a lot of thought into TT models.
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I clipped the tie rod pips and actuation rods right down to clear this issue.
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It’s my understanding that inconsistent power supply can cause spikes, in the same way micro shorts will. Motors with wiper contacts rather than traditional carbon brushes do seem to be much more sensitive to these events. Glad you at least found something Dave and hopefully you found what’s happening. Sometimes the great hobby can be incredibly frustrating but it’s always worth persevering 😁
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The slow speed running of these 08 is incredible, the stay alive certainly helps. I have played about with various settings and have mine able to crawl along at a scale 1/4mph, that’s incredible
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A call to CS gets things moving more quickly than emails. Although Hornby can’t be faulted on the customer service, it’s impressive.
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From an engineering perspective, the cup holding the cardan shaft has to have a shallow throat to allow the articulation on model railway curves. In the same way that backlash has to be engineered into gearing a degree of freeplay must exist in the shaft/cup. In a perfect world it’s all good but there is not huge margins. I doubt it can be shaken out, usually changes in direction on curves pop Cardan shafts out. Roco had huge problems a few years ago, Märklin are still having issues but their shafts usually snap. The fact of the few Hornby ones that have popped and been customer refitted with no further issues does suggest an assembly issue rather than a design issue.
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Class 50 locomotives
in Hornby TT:120
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Nice one Garry! I thought that’s where you were going with it! With the shaping on the diecast chassis. I can see a Hornby one coming, hope it’s a lot sooner than they managed in OO! (We will gloss over the comically short HD one)