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Diesel fuel storage tanks - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Thu Dec 16th, 2010 09:50 pm
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Perry
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I want a diesel refuelling area for my MPD and had searched the internet for a suitable diesel fuel storage. The kit I found was a lot more money than I was prepared to spend, but the pictures gave me some idea of what was required.

I prefer to be a scratch-modeller, rather than a kit-builder, so out came the scrap-box again.

The tanks are simply sections of sturdy cardboard tube recycled from the kitchen. These tubes were wrapped in a layer of 0.005" plastikard to give a better surface. Four appropriately-sized buttons were glued onto the ends to give the characteristic bulged shape. The thread holes and edge gaps were filled with MMD White Putty and sanded down when dry. The glaze was sanded off the buttons to allow paint to adhere better.

The girder-type tank supports were made from 0.040" plastikard. To get the required shape, I cut a square of plastikard and cut a hole, the diameter of the tank, in the centre. A little more simple marking out and the square was cut into four pieces, making sufficient supports for one tank. I repeated the process for the second tank. Some 0.015" plastikard was cut into 3mm wide strips and these were glued along the edges of the supports. Further bracing was represented by gluing some 0.020" square microstrip to the support faces.

A base for the whole assembly was cut from 0.040" plastikard. It was marked out with the position of the tank supports and these were glued in place with solvent. The tanks were fixed to the supports with tube polystyrene cement.

Two braced lattice assemblies were built from 0.020" microstrip on a sheet of glass to ensure flatness. A T-shaped piece of 0.040" plastikard made the floor of the access gantry. The two lattice assemblies were glued in place onto the 'T' and when dry, the whole lot was glued in place onto the tanks and the base. Some ready-made steps were added.

All that remains now is to add details such as valves, pipework, drain-covers and handrails, etc, before painting.

Here is the project so far:



Perry



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 Posted: Thu Dec 16th, 2010 10:06 pm
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Sol
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Good job so far Perry, similar to but different than the Ratio units




 

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 Posted: Fri Dec 17th, 2010 05:23 am
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Stubby47
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Perry,
Depending on the date of your layout, you might need a 'bund' around the tanks. Also, do the tanks need to be so far apart ? This would have increased the costs quite a bit, ground area, inter-connecting pipes, walkways, etc. By putting them next to each other, with the walkway accessing both from one side, might look a little more natural/ different ?
HTH
Stu



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 Posted: Fri Dec 17th, 2010 08:29 am
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ElDavo
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Aha inspired by the Knightwing kit I suspect. The kit is a bit on the pricy side. Looks a tidy bit of scratchbuilding to me.

Cheers
Dave

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 Posted: Fri Dec 17th, 2010 08:38 am
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owen69
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that is a neat bit of modelling,once the pipework etc is on and painted will go on any setup.

:doublethumb:lol::cool:

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 Posted: Fri Dec 17th, 2010 09:34 am
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Perry
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Totally agree - the tank spacing is wrong. My calculations seem to have been a bit off!

This is the type of facility I am trying to represent:

http://www.newmodellersshop.co.uk/images/knightwing/pm116_diesel_fuel_oil_depot.jpg

Modifications are now underway. Photo to follow later.

Cheers,

Perry



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 Posted: Fri Dec 17th, 2010 03:58 pm
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Perry
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The tanks are now closer together and the pipework, etc., has been added.

Once the solvent and glues have fully dried, the whole lot will get a spray coat or two of primer.



Perry



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 Posted: Fri Dec 17th, 2010 04:12 pm
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Gwent Rail
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I thought that the original was a good looking model, but it looks a lot better with the adjustment, Perry.

The second support leg looks slightly out of true in the photo, with a gap where the tank doesn't quite nestle into the circular support. Is that a trick of the camera?

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 Posted: Fri Dec 17th, 2010 04:21 pm
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Perry
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Gwent Rail wrote: I thought that the original was a good looking model, but it looks a lot better with the adjustment, Perry.

The second support leg looks slightly out of true in the photo, with a gap where the tank doesn't quite nestle into the circular support. Is that a trick of the camera?

I think the tank (cardboard tube) is slightly out of true which means it isn't sitting down into the support the way it should. I'm confident I can disguise the problem though. I'm reluctant to try to remedy it at this stage as other parts would be too easily damaged. Viewed from the angle at which a model railway would normally be viewed, I don't think it will be noticeable.

Perry



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 Posted: Fri Dec 17th, 2010 04:48 pm
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ddolfelin
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It's a very good model - especially the steps, not easy in any scale.
With dodgy hands it's a ruddy miracle!



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 Posted: Fri Dec 17th, 2010 04:54 pm
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Perry
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ddolfelin wrote: It's a very good model - especially the steps, not easy in any scale.
With dodgy hands it's a ruddy miracle!

Thanks, but I can't claim any credit for the steps; they're a commercial product. All I had to do was cut them to length and make up some handrails. They're made by Plastruct, catalogue number STAS-4. Very useful.

Perry



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 Posted: Fri Dec 17th, 2010 05:27 pm
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Bob K
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That is an improvement and a very good final result Perry. I did not know that those steps were available commercially either so that was a useful piece of information.

Bob(K)

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 Posted: Fri Dec 17th, 2010 05:39 pm
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Black5
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Perry wrote: Gwent Rail wrote: I thought that the original was a good looking model, but it looks a lot better with the adjustment, Perry.

The second support leg looks slightly out of true in the photo, with a gap where the tank doesn't quite nestle into the circular support. Is that a trick of the camera?

I think the tank (cardboard tube) is slightly out of true which means it isn't sitting down into the support the way it should. I'm confident I can disguise the problem though. I'm reluctant to try to remedy it at this stage as other parts would be too easily damaged. Viewed from the angle at which a model railway would normally be viewed, I don't think it will be noticeable.

Perry

I don't think it will be noticeable.


Ahh but Perry, You're not counting on the rivet counters casting an eye over the tanks....(as they do) :It's a no no

I think both sets of Tanks look the goods :thumbs

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 Posted: Fri Dec 17th, 2010 06:20 pm
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As always, a nice bit of work. The buttons are particularly effective as the domes are truly difficult. Herewith  a picture that may give you an idea or two to avoid spending money on white metal fittings for getting hoses etc connected to move your diesel around.

The pipes are solder wire, and the 'fittings' are plastic insulation stripped off of mains 2 core and earth and carefully snipped, tapered and painted with bronze paint , the 'taps' are the same but with a filed down brass nail  through the plastic and wire.


The little 3 pipe manifold is another assembly of solder wire and little rings of insulation.

Hope it helps!


Doug





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 Posted: Fri Dec 17th, 2010 06:21 pm
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Gwent Rail
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Rivet counters quest: :twisted::twisted::twisted:

That's one of the good things about this forum, we don't mind if someone wants to be a rivet counter, but we don't take them very seriously either.
I doubt that Perry (or anyone else) will get much trouble from RCs, they'd be told to sod off by the rest of us exclam: :mutley:mutley:mutley 

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 Posted: Fri Dec 17th, 2010 07:36 pm
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Perry
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Nice ideas for the pipes, etc, Doug. Thanks.

The valve control wheels on my fuel tanks caused a bit of head-scratching. Eventually, I used a paper hole-punch to make some small circular pieces of 0.015" plastikard and drilled six small holes around the circumference of each one to give the appearance of 'spokes'. A dab of paint should help the illusion too.

The pipes were made by bending sections of sprue (I never throw anything away!) over a candle flame before trimming to length. Two more hole-punched pieces of plastikard form the flanges where the pipes join the tank fronts. A tiny piece of microstrip was wrapped round each pipe to form the valve housing before the control wheels were added.

Perry



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 Posted: Fri Dec 17th, 2010 07:54 pm
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Perry
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Gwent Rail wrote: Rivet counters quest: :twisted::twisted::twisted:

That's one of the good things about this forum, we don't mind if someone wants to be a rivet counter, but we don't take them very seriously either.
I doubt that Perry (or anyone else) will get much trouble from RCs, they'd be told to sod off by the rest of us exclam: :mutley:mutley:mutley 

Each to his (or her) own. I don't have (much of) a problem with rivet counters. :twisted::mutley

Like many other folk, I strive for perfection in my model-making, I am also enough of a realist to know it's all but unobtainable.

There is a gap or two around the tank supports. I'm not entirely happy with that, but I can live with it and try to do better next time. The way I look at it is this; I've been to several model railway exhibitions where I've seen gaps beneath buildings, warped  walls, curling roofs, etc, etc. We've all seen them, I'm sure. Most of these problems are caused by the atmosphere and/or the limitations of the materials we press into service. These are, after all, only models made for fun and enjoyment, and not (with a few notable exceptions) demonstrations of precision building and engineering.

If anything looks wrong, someone on here will usually gently point it out to you with a suggestion as to how to remedy it.  It has happened to me many times since I started on this forum and I'm grateful for every comment, adverse or otherwise.

Don't worry about the rivet counters if you don't want to. It's your choice.

What's the old saying? He who never made a mistake, never made anything?

Perry



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 Posted: Sat Dec 18th, 2010 09:29 am
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Chubber
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Perry wrote:
What's the old saying? He who never made a mistake, never made anything?

Perry


Too true...........and I had never thought of the paper punch on plastic, thanks.

Doug



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 Posted: Sat Dec 18th, 2010 10:27 am
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phill
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Think the left tank needs moving about 1/2 inch to the right mate :twisted:

Looks very good, here is the one i made from the kit and i belive its what your trying to do, front and side view. I weathered it as well, not good but it do for me.






Hope this helps,

Phill




 

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 Posted: Sat Dec 18th, 2010 02:28 pm
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Wayne Williams
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I'd say those tanks look just fine Perry. Coming from the likes of you, we would all expect it to be that way. (That's a compliment)

I'd like to back up a moment, (since I'm just now reading this thread), how in the world did you find a cardboard tube in the kitchen, or anywhere else for that matter, where the inside diameter would match up with a button?

That tells me that you never stop looking at something and trying to figure out how to use is for scratch building.

Very Inventive!

Wayne

PS: One other question, what did you use to bond the .005 plasticard to the cardboard tube?



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