Category Archives: Glenmutchkin
It is a fair time since I built my last building, so feeling that it was time that I rediscovered my mojo for architectural things I have made a crack at a building that will be a fairly key feature on Glenmutchkin – its pharmacy .
This is inspired, and largely a facsimile of, The Kyle Pharmacy that could be found on the approach to the ferry pier. Or at least it could until the 1970s when it was swept away to make a larger car holding pool for the ferry. In addition to being a characterful building, as you can see below, the real pharmacy at Kyle was a key part of the local community and I wanted to capture this feature in Glenmutchkin.
The pharmacy building is going to be located on the most prominent position at the front of the layout, so it definitely deserved some time being spent on it. Taking Peter Bond’s advice, it is going to be assembled in components which will make painting a great deal easier but rather than using plasticard throughout as he would have done, I have arranged to have the shop front and bay etched. I did so as I concluded that getting the slenderness and crispness of these was going to be key to get the feel of the model convincing. Peter is a professional architectural modeller and bending plasticard to his will is therefore his stock in trade – not quite so me!
So these are the basic etches back from PPD:
Some of the bay assemblies and the bay largely completed:
The real value of etching the components can be seen in the shopfront – I at least can’t get plasticard to look like this!
My last post recounted the difficulties that I was encountering correctly wiring up a slip and the technique I had arrived at to overcome this, This precipitated various bits of advice including an alternative approach provided by Richard.
Richard’s solution is certainly a little easier than my approach to wire and does not need an additional point motor to run the extra switching required. It is, however, slightly less idiotproof in use than my version – this is because once the approach turnout is set for the branch in my version, the whole of the run was also set electrically. On Richard’s version, it is also necessary to decide whether the main line to yard is to be set for the yard.
This is what it looks like as a wiring diagram and it is important to note that the approach turnout (A) is also operating one of the slip’s switches too.
I need to fire up the soldering iron now and undertake the correction, so that we can play with trains!
I have been continuing with the wiring of Glenmutchkin, but have hit a snag; one that I should have been ready for – the wiring of the slip, I had been aware that a diamond crossing was a challenge to wire and I was suckered into thinking that the switches on a slip could over come the challenge, Well I go that wrong…….!!
The basic problem is that there are a choice of two routes through a diamond crossing and each route requires the polarity of the crossings to be different. The diagram below, which shows how a diamond crossing needs to be wired, should illustrate the problem. The only solution to this is to power the crossing polarity by way of an approach turnout – if you really don’t have one to set the polarity with, then you are going to have to resort to some switches – but at least it will give you a good excuse to interlock the diamond crossing with some signals to remind you on which direction it is set!
Hopefully this is clear that the crossings on the diamond crossing are activated by detecting the direction of the switch on the approach turnout. If it is set for straight ahead, then a train can’t travel over the crossing and therefore the parallel line can so the polarity of the crossings are set accordingly. Conversely, when the approach turnout is set to the branch, the line across the diamond can be used and the polarity is set to suit.
The principal with the diamond crossing needs to be heeded when the crossing is replaced with a single slip as I have, but it does get more complicated because the switch of the slip can also lead to a different route through the crossings. The crossing to the left of the slip is the more straight forward as it is only activated by the approach turnout. However the right hand crossing is more complicated as if the approach turnout is set for the branch then it always needs to be in the red polarity whereas if the approach turnout is set for the main, then it then needs to be controlled by the slips switch.
Hopefully the diagram above shows how this works.
The irritation I have, in addition to having wired it up wrong already (!) is that the approach turnout is on a different board to the slip. To reduce the number of wires crossing the boards, I have decided to simply use a duplicate point motor for the approach turnout located on the same board as the slip. It is expensive but rather more simple than the additional wires.
NB – please see also a follow up post on this wiring arrangement for an alternative approach.
Having taken a few days off to make a long Easter break and absent the family for a few days, I have set about the wiring of the layout as it has laid untouched for too long!
First things first was to mount the control panel and rather smart it looks too……….
Then onto the wiring itself, which takes a surprisingly long time…………….this is only about 50% finished!
One of my slightly better ideas (you’re about to find out about a less good ones!) has been to make up mounting pieces for the DCC Concepts Cobalt point motors. These are inspired by those designed for the Tortoise units and work on the same principal; they have a uniform mounting arrangement so once set up the actual point motor can be swapped over if need be without disturbing the set up. This is what they look like:
Nothing too revolutional, but I hope it will make changing these at exhibitions a lot easier as this is the absolute devil on Portchullin.
And the less clever idea? Remember the multigang sockets I had used on the control panels (link here) well they are not rated at a sufficient capacity to operate the point motors. I think this is because Cobalts operate on a stall basis (the motor doesn’t turn off, it just stalls when it reaches the resistance of the physical stop). My guess is that this results in quite high ampage draw and has led to the following:
Ooops! Back to the drawing board (or rather traditional tag strip) for the linkage of the control panel to the board.
There have been other problems too; the carefully recorded wiring lists proved to be wrong on occassions so I have had to prove each cable run (dooh!) and I found one of the power district switches was defective (but only after a couple of hours of trying to trace the fault!)
So things are getting there, but we are still not at the stage of the first wheel moving!
Well, that’s true of the top side, where nothing visible has happened of late but there is progress when you look underneath.
I have spent more than a few hours soldering dropper wires on about half of the track that has so far been laid. All is neatly colour coded (hopefully).
Another development in comparison to Portchullin is the painting of the entirity of the underside of the layout white. This is to make everything clearer and will, hopefully, make it easier to deal with issues with the layout set up – although I am hopeing for less issues!
Even more hours (weekends even!) have been spent making up jumper connections, so hopefully the wiring will speed up in the coming weekends! I have spent this time to work through the logic of the wiring across all boards and there is a full wiring schedule in place – none of the wonky logic on Portchullin this time!
I promised a number of people that I would be making sure that the layour had at least the main elements wired up over christmas, so that it could at last run. But then it was a bit wet and cold so I did not fancy it out in the summerhouse so I applied rule no 1 – its my trainset!
Instead, I stayed at the bench and made a pair of the signals that still remain to be made for Glenmutchkin. The signalling plan has developed very slightly since I originally showed it back here and is shown below (actually this is the artwork for the control panel facia).
The signals that I built were those that control the main loop prior to the shed link – levelrs 27 & 28 – and then the outer starter (that covers both the main loop and the main line) – levers 23, 24, 25 & 26. Only a pair of two doll signals, I thought, they shouldn’t take more than a day or two? Phew, well that wasn’t right; the more you look at the prototypes, the more you find there is to model!
Having created much of my own etchings and castings for MacKenzie & Holland signals I have obviously made good use of these. In this case, the small brackets, arms, ladders and castings.
Both of the signals have used the small brackets to create smallish landings. The smaller of the two signals has only one arm per doll, the larger two. The dolls and the posts are made up of square brass section which is filed to a taper – a certain amount of elbow grease is needed to acheive this! The posts are then sandwiched between some transom beams that also clasp the doll post – this is all soldered with a high melt solder to stop it ungumming later.
The brackets are then offered up from below, with scrap etch forming the bearing plates to pick up the transomes. In the etch I also included smaller brackets to pick up the free end of the landing, along with the landing itself. This gets you to the stage shown above.
But this is not the half of it on a signal, there are the finials, lamp brackets, lamps, cross stays, access steps, access ladders, pivot plates, handrails, operating cams, safety hoops and ladder still to do………..
In a departure from my previous practise, I made the main ladders detachable (they will be held with the wire that can be seen in the pictures being turned over in secret pockets. I am also going to paint this prior to the final assembly; which will mean some touching uo of the painting later but I hope will make it easier.
And of course, I had to sign them with these rather nice custom name plaques from NBR 4mm Developments.
This is the first time that I have used the brackets in signal making and I was pretty chuffed with how they have come out. This is where things presently stand and we head for the paint shops tomorrow…….
I have been back onto the layout of late, with a view to get the first wheel turning on it before too long. That means attacking the electrickery things, beginning with the control panel.
I made a start on this by drawing up a diagrammatic representation in MS Paint and then using this to get one of the online firms (Vistaprint) to print me up a poster board to form the basis of the control panel. I am not sure I chose the right material as it turned up on a light weight foam board and I had to mount a sheet of aluminium behind for it to be stiff enough to be useable. But it did look pretty smart I thought………….
The control panel deals with all of the signals and turnouts that the cabin will have controlled, with local ground frames (which will be located on the boards locally) to be used to control the goods yard and the MPD. The latter will be arranged such that it can be located either to the front or the rear, to allow some flexibility in operation.
I have got to the point where the full extent of switches have been wired in and I am just completing the jumper leads. I took a lot of care to plan the wiring prior to any construction – despite the locos being DCC controlled, there are an awful lot of wires. This is because I have stuck with traditional control for the turnouts and signals. There is further complication as a result of the desire to incorporate some bells and even a block instruments (well maybe, at the moment it is just the wires!). So in all, there are 90 odd wires doing something or another on the layout.
Somewhat in contrast to Portchullin, I have sought to keep the wiring as tidy as possible; everything is neatly collour coded and even labelled (to be fair it was labelled on Portchullin, but in a non colourfast ink………..!). I am hoping that this will make the wiring easier to debug at the start of the matter and repair if it does get damaged.
I am proposing to use a variety of connectors between boards and to the control panel, including this rather nifty varient of the D-sub range that is wired directly onot a cheeseblock wireless connector. Available to a variety of types from ebay including from this seller.
In comparison to the coaches that I use on Portchullin, most coaches from the 1920s (my chosen period for Glenmutchkin) are shorter and in many cases, even without considering the six wheeled vehicles, a lot shorter. This was driven by the technology and in particular the materials available to the railways of the time. There were exceptions though, and my present build is dealing with one of these – an East Coast Joint Stock 12 wheeler.
In the early 1890’s, the journey north was all about speed and culminated in the Railway Races to the North where the rival east and west coast companies competed to get their services to Aberdeen first. This came to an abrupt end in July 1896 when a west coast train took curves too fast at Preston and left the rails. Although the loss of life was relatively limited (for the time), excessive speed as a result of the desire to “speed to the north” was firmly blamed. As a result, the competing companies agreed no longer to race each other and instead sought to compete on the basis of the quality of their service and the luxury of their trains.
A GNR small altlantic hauling an ECJS express at the turn of the 19th Century made up predominantly of 12 wheeled stock
One product of this competition were some really fine 12 wheel coaches built for the East Cost Joint Stock Company (which was a joint company with the GNR, NER & NB contributing to the cost for trans-company trains). Built from 1896 onwards, these were several different lengths (this particular example was 66’11″) but all were long, seeking to use length and mass to iron out any track irregularity. To support this length of coach, six wheeled bogies were used, although these were rather infant in their design and used big transverse leaf springs as bolsters. In addition to being really characteristic and obvious – so they need to be modelled – I suspect they gave a somewhat bouncy ride!
Barry Fleming’s scratchbuilt body and part completed roof
I have been given a big headstart on this build by virtue of being given a nearly complete body/roof for a luggage composite (diagram 6 for those in the know). This was scratchbuilt by the late Barry Fleming in the 1980s and is a class bit of modelling! Barry gave it to my father, along with a couple of other coaches, to complete but as he has not managed to get this particular one, he has passed it to me to have a bash!
My etchings back from PPD
One of the reasons that this model was put to the back of the queue previously was that almost none of the parts required to complete it – in particular the bogies – were available, so it was all going to be a scratchbuild. As I was pouring over the drawings and pictures in the bible on things ECJS it dawned on me that the missing parts would be best dealt with as an etch and given my developing skills in etch designing, I might was well have a go. This is the product, an underframe, some cosmetic bogie sidesand some underframe details fresh back from the etchers.
The basic underframe has fold up solebars and buffer beams. Each of these also has integral fold over layers to laminate on the cosmetic exterior. This just about worked for the solbars but definitely did not for the buffer beams which distorted due to their thinness. I will make these seperate pieces next time, but might use folding jigs.
Coaches of this era tended to have four truss rods, each with a pair of queen posts. Stealing an idea from Alistair Wright’s designs, I made the queen posts up by a long etch that has a half etch length to wrap around the wire used for the tie rod. By folding this over the wire and then laminating the two parts together, a robust and simple post can be created. As it is two layers soldered together, it has the strength to allow it to be filed to a round shape to create the appearance of the original.
Although originally gas lit, by the time I will be modelling this vehicle it was electrically lit. Whilst I probably could have bought cast batter boxes, I decided to include them in the etch and very pleased I am too – they have come out much more crisp than any of the castings I have seen and were really easy to both draw and make. The remainder of the fittings seen here were bought in castings though, typically from Comet Models (now distributed by Wizard Models).
And this is where the underframe has presently progressed to.
I will describe the building of the bogies in the next installment, they are not for the faint-hearted!