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GWMark

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Posts posted by GWMark

  1. All of the recordings of the live session are now online. This includes Jerry's presentation with the pictures edited in and some extra pictures not seen at the time but promised by Jerry. We have also added some extra videos of Mick weathering rolling stock that adds to the live weathering demo that he did on Sunday. These, along with all the rest of the weekend content, are available on the website.

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  2. I'm currently building the Brassmasters GCR Diagram 17/17a/17b and CLC Diagram 49 10T van, but struggling with the brake gear. Would anybody have a picture of the underside of one built with the vacuum brake in place?

     

    The wheels are braked from each side, with a total of 8 brake shoes, my problem is working out the layout of the various levers etc.

     

    Thanks

  3. I wonder if anybody can help me, I have a Malcolm Mitchell 517 Kit (4mm) that I am currently building and I have just found I have a page of instructions missing. Well actually page 13 is duplicated twice and page 14 is missing. Does anybody happen to have a set who might be able to scan the missing page an PM me with it?It is the second page of the superstructure assembly instructions.

     

    I would be much obliged if anybody could help as I am planning to continue the building of this at Missenden next weekend.

     

    Thanks in advance

    Mark

  4. I'm jealous of your train shed, its the sort of thing I have planned for my long planned but never started model of my home town branch terminus, Falmouth Docks as it became known.

     

    Know all you need is the signs with the platform numbers and I might be able to remember which order they go in, 1, 2, 3 or 3, 2, 1 !

     

    Mark

  5. I'm glad it's all working, I'm a sucker for making things move (as well as the trains of course), so this sort of thing is right up my street and a pleasure to be able to work on. I am impressed with how quickly you got the gates installed. If it as me I would have had to contemplate the installation for at least a couple of weeks!

     

    It's always a pleasure to come and operate Buckingham West, a really enjoyable, if at times slightly hectic layout to run. I'm really impressed with what you have achieved and really happy to be able to repay you in a small way for the enjoyable evenings.

     

    Mark

  6. In my first post to RMWEB I mentioned that I got the PDK kit for the 72XX the very same month that Hornby announced their effort. I figured it was about time that I got round to sorting it out! Another one of those probably futile New Years resolution to dig into the Little Didcot kit mountain. This one has been on the 'want to sort list' for a while and the fact that two of the volunteers who work on the real No. 7202 asked me to do a renumber job on their Hornby models kind of made the decision that this was next in my sights.

     

    Hi Castle,

     

    I thought those frames looked familiar. I built one of these PDK kits some time ago, on various Missenden weekends. I was very pleased with the result and found it a nice kit to put together. Some time ago Tony Wright built one of these and featured it in BRM. I found it a good reference to bolster the information in the instructions. Of course it helped that at that time Tony was also the Missenden tutor. One thing not in the instructions is the white metal casting that is included in the kit to form the refuge for the lamp at the rear of the bunker. I recently added a sound chip to mine, from Coastal DCC. With plenty of weight in it and a long coal train behind it does look the part.

     

    Hope you enjoy the build

    Mark

    • Like 1
  7. Sorry Rich, I've been distracted and not followed the conversation.

     

    The big issue is, I have no idea where to start, so is that an offer to make 3 Mark? The bells are on 12v DC not 5v.

     

     

    Yes, more than happy to do that. I'll have a play and see if I can get something to you.

     

    Mark

  8. Presumably you could arrange the circuit so that when the responding tapper is used you'll put a low resistance across the capacitor which would drain the capacitor pronto and extinguish the LED. That means that you could probably have a very high value capacitor to give you a long LED lit time without worrying that the LED will still be lit long after the bell signals have been exchanged for a following train movement.

     

    And on that very note - excuse the pun - looking at things from the other direction so to speak, the LED would be lit when exchanges were the other way round. Could this be confusing?  

     

     

    I would be tempted to use a NE555 timer in monostable mode. That way the lit duration would be tuneable to some fairly decent times without the need of a big capacitor and you could also use the outgoing bell taper on the reset line of the 555 to turn the LED off immediately. The 555 as well as being less power consuming than charging the capacitor, would also be less expensive probably.

     

    My other thought was to have an Arduino in there that counted the bell taps an understood the difference between the different codes - particularly train out of section. That has the potential of also being able to indicate track occupied in the interval between "train in section" and "train out of section" - although this would not be true occupancy detection, but it could add a little more to things. However this would of course be dependant on the operators getting it right - so no good for me  :scratchhead:

  9. Thanks Rich, it was a really good evening. You should be congratulated on brining the concept to life. Seeing Buckingham West "in the flesh" it is more impressive than it appears in these posts. The operation is really very cleaver and well thought out, If only you had operators worthy of it  :scratchhead:

     

    I have to admit I found the bells on Evenley slightly confusing, probably because I'm either starting to get hard at hearing or maybe I was concentrating on something else and not paying enough attention to realise which bell it was that had just rung. I was thinking about an electronic solution, you know me, which could have a light next to the bell push that would illuminate if you had a unanswered bell call. Maybe I'll get back to you on that one.

     

    Thank you once again for the invitation, the evening was really enjoyable and seemed to go by in the blink of an eye.

     

    Mark (and Daniel)

  10. Tony,

     

    thank you for a great day, it was a privilege to get to play on Little Bytham and to run your stock. Hugely enjoyable.

     


    I can only comment on the 72xx, a PDK kit that I built over many visits to Missenden Abbey, some under your tutelage.

     

    Once again thank you for hosting us at Little Bytham, it was a testament to how enjoyable the day was that the time seemed to go by so quickly.

     

    Mark

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