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Dave John

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  • Location
    Glasgow
  • Interests
    Pre grouping railways, particularly the Caledonian.

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  1. I did, and really enjoyed Remagen. I have watched it develop on here, good to see it close up at last.
  2. Used some on a job recently. https://www.screwfix.com/p/easyfix-4-pronged-tee-nut-m8-x-11mm-10-pack/47225
  3. Well, in terms of public voting at a busy exhibition large will always come out on top. I had a bit of a look at that at the SECC over the weekend. By eye a spectator takes up about 2 feet. So 10 foot layout , 5 voters / unit time, 20 foot layout , 10 voters / unit time. Twice the potential voters. Now I accept that if you want to really study a layout then you have to be patient and wait for a gap at the barrier. I did, and saw what I wanted to see. But everyone is different and so I rarely take notice of the voting, preferring to speak to the layout operators/owners and show my appreciation that way. Another point. I have stood next to folk who are criticising a layout, which I think is terribly impolite. Always encourage, find something positive to say or keep quiet. Just my personal view.
  4. Well deserved. I enjoyed seeing the layout at Glasgow, most impressive in its level of scenic detail and full marks for producing a very different and original layout.
  5. Following the excellent discussion on the storage of lamp oil I have built a combined lampmans hut and coal store. A dimensioned sketch of the type favoured by the Lanarkshire and Ayrshire ( and other CR lines built later on ) can be found in "Signalling the Caledonian" by Jim Summers. A very common feature in many stations and yards, clearly having a separate small building for maintaining signal and general lamps would minimise damage by fire should an accident occur. So with a bit of simple styrene chopping with the silhouette I have ended up with this. Close photos show a bit of weathering detail needed. Also some bagged coal in the coal store. Just sat there for now, I haven’t decided where it will end up. I have had a few good running sessions too, identified some things that need done to the layout itself. Repairs, some extra uncouplers, various bits. Something to get on with now the light should be improving a bit. Mind you as folk that went to the SECC show this weekend will tell you its still rather dark out there.
  6. Heh , well Compound, the chaps on my recently built brake wagons were Mikkelised from the Andy Stadden "kits". Fiddly but fun. Turn on the high Voltage Igor.........
  7. Very impressive engineering. The shadowgraph takes me back, I remember an optical instrument maker I used to work for using a similar device to inspect small components for accuracy.
  8. Many thanks for those wonderful replies. So I would surmise that for my early Edwardian period a barrel on a stand would be the most likely method of storage, with a replacement barrel being delivered as needed. Not only that it has given me a couple of other modelling ideas, a horse drawn tanker and the Pumpherston tank wagon. I already have modelled a rectangular tank wagon from the Oakbank oil company.
  9. I am currently building a combined lampmans hut and coal store. A dimensioned sketch of the type favoured by the Lanarkshire and Ayrshire ( and other CR lines built later on ) can be found in "Signalling the Caledonian" by Jim Summers. A very common feature in many stations and yards, clearly having a separate small building for maintaining signal and general lamps would minimise damage by fire should an accident occur. I know that lamp oil, which would be paraffin by the Edwardian era, was often transported by rail tank wagon. However a whole wagon full would then be decanted somewhere into smaller containers. I can find references to wooden barrels being used early on, but by 1900 or so would a change have been made to a metal barrel akin to an oil drum? If so what size would they be ? A 40 gallon drum is a fair size, really needs a purpose built cradle to tip it and a tap screwed in to decant from there into a smaller container you could climb a ladder with. Would smaller drums be used ? So the burning question ( sorry ) is how would the oil be stored and decanted within the lampmans hut I am making? How would it be transported locally to the hut? I have had a search but I can't seem to find any good information or photos of the subject. So I thought I would ask. The last stage of the chain would be going round with a smaller can to top lamps up. Oddly I have such a can . Clearly much later , 50s perhaps. Soldered tinplate construction. Its the middle bit of the distribution chain that I would like to shed some light on (Sorry again) .
  10. Well, there are many rubber tyred metro systems around the world. They are quieter and better able to handle gradients than steel on steel, but have higher rolling resistance so are less efficient. I would also suggest that stability at high speeds might be a limiting factor. https://en.wikipedia.org/wiki/Rubber-tyred_metro But back to the op. Carbon neutral ? So not only does the energy to run the trains over their whole lifetime have to be generated in a carbon neutral way but also all the embedded energy in the materials and methods to build the railway. Would that also have to compensate for all the historic embedded energy if existing infrastructure is used ? Fine, I know the get out clause is "we are going to plant some trees". But sooner or later you run out of space to do that.
  11. Dave John

    Drummond's Bug.

    I do like blogs that are about making things which show craftsmanship, this is a classic scratchbuild. Split frame electrically connected compensated bogies using copperclad as a spacer then compensated back to the driving wheels. Thats the same method I use and like you I see a huge improvement in track holding and pickup. My influence was also reading Mike Sharmans work many years ago, and one ends up with locos that perform well.
  12. Ruston, I based my ambient sound unit around this; http://www.icstation.com/voice-playback-module-sound-module-music-player-voice-broadcast-device-development-board-arduino-p-6148.html The amplifier in it is fine for a bit of background sound.
  13. I will have a look at those and see if anything appeals to me. I have played about with an ambient soundscape. Details of it here, and the previous blog. I would still consider it a bit of a work in progress, but the method used allows easy updating of sound files , or for that various sets of sound files by simply swapping the sd card. As mentioned above I used audacity to edit the files. In the blog I did say that I wasn't entirely sure about it all, but I find the whole thing catching me a bit. The track with the horses and carts going past with the distant church bells really does make me want to fill an old pipe with a dark tobacco and let a battered 812 class trundle past with a heavy coal train .....
  14. Hmm, ok, each to their own, but I like a copperclad sub chassis and 51L rocking W irons . That way the whole wagon can be built but the W iron assemblies can be primed and painted separately. The use of a copperclad chassis allows a tab beyond the W irons for the phosphor bronze buffer spring, and two electrically separated lands give a solid pre tinned surface for ajs. That way you are keeping heat away from plastic. If you are building this way then you might as well compensate, can't hurt, might help. It also allows easy removal of the wheel/rocking iron assembly at a later date for maintenance if needed. The buffers on this were in a packet labelled decent models. I just snipped the heads off and drilled them out. You have to be fast soldering the buffer heads to the spring . Ok this is on a 6 foot wb model , but its now my standard wagon making way. The debate about whether to compensate or not goes on, but the above method means you could change from compensated to solid by just folding the tabs up on the W iron base at a later date if you wanted to.
  15. Well, hopefully a photo may come to light to see whether any storage was fitted, though I think the brakesman would be doing other things as well, possibly assisting or acting as the shunter. Winter working must have been hard, no wonder the accident rates were high. Perhaps the use of such wagons elsewhere as Gordon suggests happened elsewhere but just never got recorded.
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