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A Very Britsh Bulldog - Sandbox model & problems


scanman

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It's been a while since the last post - been spending most of the time backward & forward to hospital, visiting the inspiration for this build. Without being overly dramatic, I don't think Jim will see the finished loco. An added bugbear was looking out of the bedroom window after a period of wind to see the shed-roof felt protecting the lawn! Fortunately it didn't rain before I got it fixed.

 

So, on with the build. It looked to be mainly a case of detailing parts - and the first to go in were the sandboxes. The righthand box is not a problem - it's a box...

 

The lefthand one is a different matter..

 

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It has to fold round the top - and we're dealing with a piece of brass about 12mm square which has to be folded in two opposing rightangles and follow the curved contours of the top!

 

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So far so good - then

 

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problems - all the heat had hardened the brass and the 2nd fold snapped as I was trying to form the first rounded corner...

 

Solution?

 

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Treat it as a separate piece, make the bends & then solder it all up again... It only took two hours - honest!

 

However, it got there in the end

 

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and was then sweated into place

 

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The front floor of the tender had to be cut to fit round the sandboxees, and soldered in at the correct height. Not having built the loco, I worked that out from the rail-footplate height on the drawing. Time will tell...

 

The coal plates front & rear went in quite quickly, using an engineers square to ensure squareness

 

Now it was time to marry the tanktop with the chassis.... Oh dear....

 

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Fairly obvious that the footsteps which are supposed to fit outside the tender frames - don't. Back to the instructions, and yes I'd missed something. Do you remember thos tabs which slot through from the tanktop former and bend over?? I missed one important word - 'outward'. I applied the standard procedure and folded toward the etch line. RTFM!

 

At the mo' I'm busy stripping off the steps & valances to resolder them some 1 mm outward of their original location. However, I'll temporarily attach the two main units together whilst this is in progress - just to make sure...

 

Regs

 

Ian

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The Law of Sod always strikes when you least expect it to ! Me, I'm dead chuffed having only spent four hours on one groung signal !

keep at it

 

gerrynick

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You had me wondering for a while what that strange shape was. Then I had to go and check to see whether I'd missed or forgotten something on my 2500 gallon tender. Fortunately for me, the sandboxes on the smaller tender are just simple boxes -- a 'u' shape with a flat lid on top.

 

Looking back at your previous entry I can see the mistake you made with with those tabs. Sorry I didn't notice at the time :rolleyes: If it's like the smaller one, you'll find the valances come very close to the edge and, even then, the chassis is a tight fit between them and the steps.

 

Nick

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Mr Finney loves those fold-up etched jobs when a casting would be so much easier. Bummer about the steps though. I wonder if the tender I have for much Duke in 7mm will be the same.

Don

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Hi Guys- Manybthanks for the comments.. In order

 

Nick(1)(!) Law of SOD applied..

 

Nick(2) Cheers anyway Nick - but I think that by the time of the original posting it would have been too late anyway!

 

DonW - I suppose it is easier for MF to draw the item & include it as an etch than to make a master,& find a caster which would add to costs. Also, he allows so many permutations you could probably build a second tender from the bits left over. I'm considering this approach with the loco - the Finney kit comes complete with both narrow & deep frames & I'm looking into the possibility of converting a s/h 'Mallard' 'Duke' into a 'Dukedog' - the driving force being that my EMGS membership number is '9017'!

 

With regard to the assembly problems, these were entirely self-made - I didn't read the instructions fully. Once I had, even the srawings (sketches) show the tabs urning the 'right' way. Mea culpa - don't be put off by my fumblings!.

 

Regs

 

Ian

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