7mm The Derby Line - Rolling Stock

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LarryG

LarryG

Western Thunderer
I cabbed a Coal Tank near Abergele. Not much floor space to swing a shovel. It was on a low-loader being transferred from Penryn Museum to Dinting. :drool:

Their replacement by Fowler Class 3 2-6-2T's at Lees (26F) in 1939/40 must have left the crew's feeling they had lost a rock and found a hard place!
 
dibateg

dibateg

Western Thunderer
Thanks Larry - that Coal Tank cab looks very cramped...

I like the SR Pacific running gear - they look purposeful and chunky, with lots of distinctive details. I seem to have sorted all the brake clearances now, so I'll press on and fit it out and get it running...
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mickoo

mickoo

Western Thunderer
Pencarrow said:
.......Great design by Bulleid.
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Funny you should say that, a view not generally held in great sway by those that have to work on it ;) To be fair, their language was a little more colourful than that when we conversed at GCR last week :p

I like the replacement pins, one to tuck away for the next one I do :thumbs:
 
dibateg

dibateg

Western Thunderer
A days work has got me to this, what I did do, was inset the wheel overlays as fitted flush they made the rims look to chunky. That meant carving out the plastic beading next to the rim, which was fun. It pushes up and down the test track ok, which is a start.
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Pencarrow

Pencarrow

Western Thunderer
mickoo said:
Funny you should say that, a view not generally held in great sway by those that have to work on it ;) To be fair, their language was a little more colourful than that when we conversed at GCR last week :p

I like the replacement pins, one to tuck away for the next one I do :thumbs:
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The brake blocks being either side of the wheel heavily reduced wear on the axleboxes. In one respect the idea reduced one form of maintenance but made the task more difficult when required. Unintended consequences?
 
Steph Dale

Steph Dale

Western Thunderer
Pretty much every manufactured product has emergent system properties. A very few people, myself included, have fun careers helping companies find out what they are and how they occur. Q.v. transverse engineering. Also known as 'all the stuff designers typically forget about'; manufacturing, safety, reliability, availability, maintainability, training, human factors, cyber-things, physics, logistics, configuration, publications, communication, etc, etc.

Well, I think it's fun anyway... :)

Steph
 
Focalplane

Focalplane

Western Thunderer
My step-father's career was in industrial consulting, a.k.a. time and motion studies. A fascinating job which took him to many interesting places, one of which was Turkish Railways at Bursa, their equivalent of Crewe. I often wonder these days if any time and motion work is done at all, particularly at computer desks - whenever there is a cricket test match on the number of office workers following the game on the internet must be a major detraction to efficiency.

On topic, the driving wheel inserts have changed colour, does this mean you also removed paint/metal from their fronts as well as plastic from the wheel behind to get a better fit?

Paul
 
oldravendale

oldravendale

Western Thunderer
Steph Dale said:
Pretty much every manufactured product has emergent system properties. A very few people, myself included, have fun careers helping companies find out what they are and how they occur. Q.v. transverse engineering. Also known as 'all the stuff designers typically forget about'; manufacturing, safety, reliability, availability, maintainability, training, human factors, cyber-things, physics, logistics, configuration, publications, communication, etc, etc.

Well, I think it's fun anyway... :)

Steph
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Would someone kindly tell Microsoft and most software manufacturers about this clearly newly discovered process?

B
 
Pencarrow

Pencarrow

Western Thunderer
Focalplane said:
On topic, the driving wheel inserts have changed colour, does this mean you also removed paint/metal from their fronts as well as plastic from the wheel behind to get a better fit?

Paul
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Paul, I believe they are Finney7 etched metal inserts placed over the Slater's wheels.
 
simond

simond

Western Thunderer
Steph Dale said:
Pretty much every manufactured product has emergent system properties. A very few people, myself included, have fun careers helping companies find out what they are and how they occur. Q.v. transverse engineering. Also known as 'all the stuff designers typically forget about'; manufacturing, safety, reliability, availability, maintainability, training, human factors, cyber-things, physics, logistics, configuration, publications, communication, etc, etc.

Well, I think it's fun anyway... :)

Steph
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I think it's fun too.

Trouble is, in a small business, I have to do all of the above, with support from a very small team, who are also trying simultaneously to keep the wheels on all the other products we make and ensure that whatever we design actually meets market needs, fits in the box, works properly, can be made economically, and complies with applicable regulations.

And occasionally deal with the clown who sends us "half" of a machine for repair, and includes a "memory module", which on further examination turned out to be the GPS display from a 3 series BMW... Who said the customer is always right?

:)
Simon
 
dibateg

dibateg

Western Thunderer
The cab has absorbed some time and I'm afraid it looks somewhat solder drenched. It's not as tidy as I'd like, but it's mostly on the inside. I modified the internal framing ( unless I got it wrong ) as it didn't conceal the line of rivets below the windows. I separated it into roof and sides to install it. Fitting out the inside of the cab is fiddly and I had to resort to a smaller bit on the iron to get in there. Everything fits nicely, but there is also a lot of surface mounting of components. Hence the solder. I got into a knot with the inner window frames as they would not drop into the gap left by the modified framing.. grrr, I should have fitted them immediately after! So I cut them into separate pieces to trim and install. So, yes, some tidying up to do...
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Attached to the boiler and plonked on to the chassis, it's starting to take shape. It's an impressive machine.. The chassis ran up and down the 6 foot reverse curve with no shorts - which is amazing... At least I don't have to put handrails along the boiler, but there is masses of other detail.
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dibateg

dibateg

Western Thunderer
Work in progress on the front platform, and observing the different conduit arrangements for the lights. One thing to watch out for is the 'lid' over the AWS battery box. It should have an upturn flange at the back, otherwise it sits too far forward. That nearly caught me out! I couldn't think of a way of making the access covers on the lighting conduit. Don't tell me now. Getting those half circle is behind the side lamps was a right fiddle! Looking at the buffers, I think 34091 had parallel ones... that's under investigation...
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dibateg

dibateg

Western Thunderer
So a revision of the front end, I've used MOK LMS self contained buffers as 34091 appears to have had that style, and I also reworked the conduit to the lamps.
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A days work has seen the body detailed, but those rails at the top of the side were fiddly adding little loops of etched brass and suchlike. The unsightly black smudges are Loctite 483, my superglue of choice. It is just staining. The actual moulding is perfect, but on later engines the front sanders were omitted, hence the filler. All those brass bits need carefully shaping to fit the profile of the roof.
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Pencarrow

Pencarrow

Western Thunderer
Looks great, superb build. The fact that so many of these Finney7 kits are getting built with little or no fettling really gives me hope when I come to build mine. For a change it will only be my skills letting the side down.
 
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