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ColinB

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ColinB

1490 posts

Either way I am going to have some spares. I only need one. The class 50's secondhand, go for stupid money, this one had a missing buffer so I got it a lot cheaper.

ColinB

1490 posts

I would endorse that about TTS decoder and current. Once I found out that they had a current limit, so I knew it wouldn't blow up I decided to put one in my Lima class 66. It kept stopping and starting as it hit supposely the current limit. It must have been that as when I put back the original decoder (not Hornby as I needed a higher current limit) it went back to working perfectly ok. I did put one in a 5 pole ringfield based HST but that failed due to overheating. So if it is not a modern loco with a low current motor, I would forget TTS.

If you do want to go with sound then you can get Zimo sound decoders for less than £100 and CoastalDCC do LokSound decoders for considerable less than the £120. There are alo a load of generic ones that are about £75.

ColinB

1490 posts

I do mine in a different way. Rather than trying to screw a parallel thread nylon screw into a self tapped hole (which is asking for trouble) I tap both holes out with a 3 mm tap, and then use 3mm nylon screws for both brush holders. That way you don't have to worry about mixing them up when you put it back together, and it is a neater solution. On the very late motors with the thick brush base plate, I found you can tap out the plastic with 3mm tap and use short laptop screws. The other thing that I found was incredibly important is to add extra pickups to all the wheels.

ColinB

1490 posts

It is out there, it is just in peoples heads. It is a bit like going into a Ford Dealer and if you are lucky there is a Storeman that knows exactly what part fits which car and what other parts you can use.

Coming back to Hornby even though they are assembled in China, they are designed in the UK, so each designer knows which parts go to make up the completed model and I assume that they make up the parts lists. I even found that people like parts suppliers don't always know, like when I asked for help on a A4, 5 pole ringfield motor gear retainer.  After 3 mails I got the answer "I didn't know you could do that", but certain people do know. As was the case with the Fowler Tank drive gears, someone on another site had compared the gears and found that they used the same part on the A3 loco. 

ColinB

1490 posts

I ordered a set to do my own comparison. I will let you know. 

ColinB

1490 posts

Thanks Going Spare. I checked the shape and they look about the same. My main concern was the hole that they fit in. I have some Bachmann ones that look the same but the hole is slightly bigger and I didn't want to drill the body to take the bigger mounting bush. If not I will wait, it looks like Hornby are expecting to get new ones in.

As for the comment about them all having different part numbers, that is true but from what I have found from experience and members on this site and others, is that Hornby quite often use the same part across different models. So often the part is the same but just has a different part number, most manufacturers do the same, it reduces development time and production costs. 

The step plate is part of the ladder and just clues on top of the buffer. I know as one of mine fell off.

ColinB

1490 posts

To be quite honest it doesn't really matter, I am just answering the question. The Elite doesn't always work with all decoders. It could be because there is "Stay Alive" present or just an incompatibility with certain decoders. It seems to be an issue with newer designed ones. So to the average user as long as they know which controllers work with which decoders that is all that matters. I just don't use the ones that don't work with my Elite. Sometimes it is just the Elite gets itself in a muddle, which is why I suggested turning it off and starting again.

 

Incidentally I didn't mention code, just how it was implimented.

I will add the one really good bit about the Elite is the ease with which it sets up the read of data, basically the menuing function, the Fleishmann can read CVs but it is not so easy.  The only issue with the Elite is the lack of an "Enter" key , using that push button with the rotary encoder means it quite often enters the wrong value. That is why I use the Elite for programming and my Fleishmann for running the main layout.

ColinB

1490 posts

All I can say is the Fleishmann does it differently and quicker. The NMRA requirements will just say how to read it probably with a timing diagram, probably similar to many other communication specifications I have read and implimented over the years. How you decide to do that in your software is usually up to the implimentor. So if they decide to read it five times or once they probably will still meet the specification, but I will have another read it of it, just in case. It can also depend on the devices (integrated circuits) you use to do the implimentation. From what I have managed to read DCC does not have a dedicated IC to do the hardware layer so I assume most of it is done in software and again this is highly dependant on how it is coded.

Either way without the technical jargon, I have found with some devices Elite doesn't always work as I am sure do many of the other controllers on the market at the moment. I did contact DCC Concepts asking if they had had any similar issues, but they seemed to have decided not to answer my very poilte email (and yes it was).

ColinB

1490 posts

I am assuming that the decoder still functions. The decoder doesn't have any "stay alive" connected to it, because that can cause that to happen. I have had issues with the Elite doing the same with certain decoders, DCC concepts and Gaugemaster but Bachmann did seem to work ok. The only thing I did notice and this is weird, is turn the unit off wait about an hour and then try again. This is only a theory, but I think the Elite has a bit of a timing issues with some decoders because when mine didn't work I tried it on my second controller (a Fleishmann) and it worked every time. I also noticed that the Elite takes two attempts to read data whereas the Fleishmann did it in one. So I don't know if the Elite takes two readings and compares them or not.

ColinB

1490 posts

Does anyone know if class 31 buffers will fit the latest class 50 loco? You can still get the class 31 buffers but not the class 50 ones. So if these fit, I can use them. I probably can get anything to fit if I try, but I don't want to damage the model.

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