7mm The Derby Line - Rolling Stock

dibateg

Western Thunderer
Thanks Adrian! A pity the inside motion cannot be seen, I blame Andy Beaton for that... after seeing on eof his 4-4-0s. Also thanks are due to Dikitriki, Andy and Jonathan Matthews for providing information and advice for this build...

Regards

Tony
 

7mmMick

Western Thunderer
Evening Mick,

Well I had a chat with " someone in the know" today and the JLTRT WD's wheelbase is spot on, and the problem was as said there is just not enough clearance between the drivers and the brake shoes. JLTRT got round this problem by " lowering " the position of the brake hanger brackets :rolleyes:.

But and it is a but, if you are building it in S7 then there is enough clearance to fit them exactly where they should be in the first place. :thumbs:

ATB,

Martyn.

Cheers Martyn, I like the sounds of that but I fancy a look at the kit in the flesh before I decide. On the face of it though the JLTRT WD sounds the easier S7 build ?

ATB Mick
 

7mmMick

Western Thunderer
A quick stroke of the file, a bit more weathering and some perma blue on that shiny buffer and she'll be bob on :) This reminds me that I need to get on with some more wagons that are on the bench,

ATB Mick
 

dibateg

Western Thunderer
One of the background jobs going on is to build a pair of Ex LNER Thompson 52' Non Corridor coaches from Sidelines kits. I made a complete muck up of the sides of one coach, but Malcolm very kindly sold me another pair with pre-formed tumblehomes..
I've been working on the bogies, and the side castings already have the steps attached, which I like. They did seem to come out a little wide at 9' over the steps though, so I ended up dismantling them, trimming 2mm off each side, bringing them back to 8'6". Fortunatley I had not got to the stage of attaching the white metal castings, here is before and after:-

P1010160.JPG
 

dibateg

Western Thunderer
I've been doing mundane stuff like making signal control boards for Penmaenpool, but my 4mm scale 04/8 came back from it's new owner for a new motor/gearbox and I couldn't resist a picture alongside my ( still clean ) 7mm scale one:-

P1010165.JPG


At last I got hold of some MSE signal ladders for the tank wagon. With a little modification they do the job. I think it's nearly finished...
P1010172.JPG
 

dibateg

Western Thunderer
Back to 4mm scale for a day or so to make the signals for Geoff Taylors Penmaenpool. Here is the distinctive bracket signal that is opposite the hotel ( for those familiar with the location). With one of the 4 single posts alongside. I need to check for positioning, then add the cranks and tidy up. The ghastly weather has kept me inside and boosted the progress of several projects.
P1010239.JPG

I used to be able to manage forming tumblehomes in 4mm scale with no problem. 7mm scale is another story. I managed to write off a set of sides, as the brass is a heavier gauge in this scale and I found it was like trying to bend a spring! Jonathan Matthews came to the rescue with this technique:- The the sides are clamped between a piece of 2x1 and skirting board in the workmate. Starting with just a little projecting the side can then be bent over the curve in the skirting board . This is done in steps - 2-3mm projecting more each time. This results in an over formed tumblehome. This can then be brought back to the desired curve to match the etched end by pressing down with fingers and working along the side with the upper part of the side overhanging the edge of the workmate, so that only the tumblehome receives pressure.
Then emery sticks of decreasing grades are used to reduce the inevitable fold marks.
P1010234.JPG

Once finished, and polished with 1000 grade, the sides look a lot better. I tend to build in batches, and I remembered that I had built a whole set of LMS bogies a few years ago, so decided to include the 50' LMS brake in this curent project. So work on detailing the sides will now take place whilst I look out on the snow covered garden...
P1010238.JPG
 

7mmMick

Western Thunderer
Very nice signals Tony, how do you produce the taper post in brass? Is it milled of filled bar ?

ATB Mick
 

adrian

Flying Squad
This can then be brought back to the desired curve to match the etched end by pressing down with fingers and working along the side with the upper part of the side overhanging the edge of the workmate, so that only the tumblehome receives pressure.
Then emery sticks of decreasing grades are used to reduce the inevitable fold marks.
That's looking very nice. For smoothing out folds on brass and nickel I find rubbing the sheet with a small rawhide mallet is very effective, in fact when the sheet is on the skirting board using the mallet to form the tumblehome may help to minimise any fold marks. A few evening classes in silversmithing is great for learning a new techniques in sheet metal work and silver soldering.
 
Top