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Scratchbuilding trial, using aluminium





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#51 Nearholmer

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Posted 10 June 2018 - 21:46

Another good one!

If you think it’s garish, comfort yourself that it is almost exactly the livery used on wagons that carried coal to Colman’s mustard factory in Norwich.
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#52 Thunderforge

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Posted 17 June 2018 - 13:20

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Having a go at a four wheel carriage. This seems the only way to cut out the windows. Suggestions welcome! I’ll cut the details out of card to get some layers on it. Not prototypical at all, three compartments and a guard’s box, straight sides. More pics will follow.
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#53 Thunderforge

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Posted 17 June 2018 - 20:46

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After much fiddling, fettling and floundering I’ve had another idea. Strip out all the windows from the aluminium, and glue the cut out card on instead. Then stick the glazing to the inside of the card and add details using more card on top. I guess I’d better find out what shellac is and how to use it!

G’night all!
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#54 Thunderforge

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Posted 19 June 2018 - 21:35

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Slow progress, lots of fiddly cutting and sticking, but getting there. I realised the odd little synchronicity that punching the card with my hand punch to make the windows was a bit like a ticket inspector clipping tickets. I didn’t have to do that for the goods stock...
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#55 Thunderforge

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Posted 21 June 2018 - 22:17

C739CB14-2A52-409A-816A-2C40EFDDF90F.jpeg CE340916-91A5-4C49-92E7-55DF7FE76502.jpeg 2B5409A4-49A4-4DA1-B7EC-3BB4C16BD865.jpeg 21C17D59-DCF9-4128-A7FA-1BE2778756FC.jpeg

Feels like progress, even if the carriage now has more of my skin on it than my fingers. Superglue really is quite sticky.
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#56 Bill_J

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Posted 22 June 2018 - 05:36

Hi Thunderforge,

 

I really like what you are doing here. I have a few scraps left of a B4 sheet of litho aluminium that I am keeping "in case I need them one day", and am disappointed that I didn't get some more when i had the chance. Once painted, your wagons really look the part and I can't wait to see the finished coach.

 

I remember, long ago, that Ernest F Carter, Edward Beal, John Ahern and many others, made good use of re-purposed materials, when scratchbuilding. And were happy to pass on their experiences.

 

I've always used my various bits of aluminium, only to represent metallic finishes, I never thought of it as a general purpose modelling material. You have given me much food for thought here.

 

with regards

 

Bill



#57 Thunderforge

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Posted 22 June 2018 - 07:14

Hi Bill, thanks for the interest. I started as a bit of a test to see what I could make and it’s exceeded my expectations so far!

I’ve worked for litho printers for years and they’ve always been happy to let people have a few old plates, especially if it’s for something unusual. If you need more it’s worth asking, and likely to be available in a few different thicknesses.

All the best,
TF
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#58 Thunderforge

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Posted 24 June 2018 - 22:14

I dug out my lightbox earlier and took some better pics. Made a coal dock from a bit of wood and self printed brick paper. Going to add a water tower to it at some point.
Also made a signal, which needs a ball/point top thingy and a ladder. The signal is made of card, at the bottom is a coin with a nail facing up through the signal post.

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And finally a load of forage under a tarpaulin, which also seems far too green, I imagine a load of cut grass would go hay coloured very quickly. It’s a lump of synthetic fur rolled up and painted, the tarp is cotton painted with several coats of pva.

Edit: All the bits in these pics apart from the wheels of the wagon and the track have been spare/reclaimed/blagged material, not bad for O gauge eh?

Edited by Thunderforge, 24 June 2018 - 22:19 .

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#59 Thunderforge

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Posted 03 July 2018 - 22:29

Update: I purchased a few new sets of wheels, which have somewhat confirmed my fears about my aluminium project. Basically it’s too bendy.

I have made up about five aluminium 9’ wheelbase chassis, and when I tried fitting wheels it appears that most of them are warped by a few millimetres. They rock awkwardly on the rails with one wheel in the air. I can twist them in my hands and warp it back again but part of the problem is the height of the holes which the axlebushes sit in, all ‘by eye’ measurements. I think all the approximations, glue and flexibility of the material add up to something with too much variability. Some chassis work fine but it’s more luck than judgement!

I’m happy with everything above the chassis, so I’m sticking with ali for the bodywork, but I want to come up with something else for the frames. Preferably something free! I’m going to have a play with a few other materials and post my results.

All the best,
Thunderforge
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#60 hayfield

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Posted 04 July 2018 - 07:58

I think the best approach is to use a variety of material within a build, so where strength is required (solebars etc) use wood, metal or plastic strip. As for the coach sides you have hit the age old issue of making accurate cuts without distorting the material, BSL used a punch and die on ali sides, they never attempted to do the mouldings


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#61 Happy Hippo

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Posted 04 July 2018 - 08:36


I’m happy with everything above the chassis, so I’m sticking with ali for the bodywork, but I want to come up with something else for the frames. Preferably something free! I’m going to have a play with a few other materials and post my results.

All the best,
Thunderforge

Have you tried timber?

 

I use either Bass or Lime wood for the rolling stock chassis on my garden railway.



#62 Thunderforge

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Posted 04 July 2018 - 09:01

Funnily enough I was thinking of trying some 4mm Ply or maybe MDF for the chassis base as my next step...


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#63 Thunderforge

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Posted 05 July 2018 - 16:35

I wonder if RMWeb supports animated gifs? Here goes...

 

_settings.gif

 

Only if you click on it, apparently.


Edited by Thunderforge, 05 July 2018 - 16:37 .

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