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Donegal Railcar no 7/8 - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Wed Mar 23rd, 2011 04:20 pm
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Burkitt
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Railcars number 7 and 8 were the first diesel railcars in Ireland. I became interested in Irish railcars after reading some articles about them in Railway Modeller years ago, which I recently dug out with the intention of having a go at building one. I don't have any plans for a proper Irish layout, but it may run on my O-16.5 timesaver.

The body of the railcar is built from transparent plastic, which I thought would provide the strongest possible structure given the very thin window pillars. The seat bases along either side help keep everything square.



I used 0.5mm styrene for the exterior surface, with strips of thick styrene at the corners to add reinforcement. The corners were then filed back to a rounded shape.



For the interior surface I also used 0.5mm styrene, painted before fitting to avoid marking the windows. The seats were also painted in advance.



The bonnet started as a simple styrene box, to which I added the louvre and radiator detail and a curved top later. I made the radiator from lots of strips of 0.5mm styrene.



To make the louvres I laminated two layers of styrene together, then filed angled grooves into the top sheet to create the vents. I added milliput over the angled top of the bonnet and sanded it to a smooth curve once dry. The pony truck was put together from more styrene.



A spring keeps the pony truck centred and helps guide the whole railcar through curves.



The railcar will be powered by the rear bogie, which is a much cut down Bachmann On30 tram chassis. Its wheelbase is very slightly too long and the wheels a bit over size, but as they are largely hidden behind the bottom of the body this is not much of an issue. The bogie sideframes are styrene, with the cosmetic leaf spings formed from several laminated layers.



A basic representation of the driver's controls was made from offcuts and wire, with printed speedo and vacuum dials.



I made the roof from multiple layers of 2mm styrene, covered in milliput and sanded smooth.



I had originally hoped that the roof would just rest in place, but I could not get it to sit completely flat. Screws were not an option for securing it as they would show on top. Instead, I have used some spare neodymium magnets, sold as uncoupling magnets for the Greenwich system. A magnet in each crosspiece corresponds with one in the roof. Very thin styrene covers the magnets to keep them from popping out and make the roof a bit easier to remove.



Construction was finished off with a bit of filling and filing to get the roof join as tight as possible, and the addition of the panel lines from microstrip.



After a clean I masked the windows with masking fluid and covered the roof hole in tape.



The whole thing is now drying after receiving a coat of aerosol primer, along with a wagon which was waiting for a spraying session.



That's my progress so far, once the primer is really dry I can get the painting done and add a few final details like the luggage rack on the roof and rear ladder.

Paul

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 Posted: Wed Mar 23rd, 2011 05:40 pm
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Petermac
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Wow !! :shock::shock:

Inspirational Paul. :thumbs

A lovely model (reminds me of my old school bus :roll:) and so well built.  Yet another master scratchbuilder joins the ranks of YMR.

We are so lucky on this forum to have so much skill and information at our fingertips  - literally !!!

Thanks for such an interesting and informative post. :cheers



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 Posted: Wed Mar 23rd, 2011 06:49 pm
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Wayne Williams
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Now that is something Paul. I REALLY liked your ingenuity with those magnets. What on earth gave you that idea? I will not forget it though, who knows where or when it could come in handy again!

Wayne



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 Posted: Wed Mar 23rd, 2011 09:03 pm
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Robert
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Thanks for another great build tutorial Paul. Straight into the Forum Index. Cheers.

Talking of magnets I have found that fridge magnets can be cut up and used for different purposes.



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 Posted: Fri Mar 25th, 2011 12:48 am
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226riversuir
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Excellent work, really like the Donegal stock good to see a bit of scratchbuilt work with directions!!!!

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 Posted: Fri Mar 25th, 2011 07:34 am
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Janner
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Fascinating stuff Paul and a great little model, thanks for sharing it with us.

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 Posted: Fri Mar 25th, 2011 07:43 am
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ddolfelin
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Great stuff! Thank you.



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 Posted: Sat Mar 26th, 2011 09:07 am
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Photoman
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That is a fantastic piece of craftsmanship right there Sir.

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 Posted: Sat Mar 26th, 2011 06:24 pm
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georgejacksongenius
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Beautiful,simply beautiful!!!

Cheers,John.B.:thumbs

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 Posted: Thu May 12th, 2011 12:59 pm
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Burkitt
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Thank you all for your kind comments, much appreciated.



I'm finally getting somewhere close to finishing painting the railcar, though there's still quite a bit to do. I initially used colours which looked right in the tin but wrong on the model for both the red and the cream, so they've needed a lot of coats before looking right. They seem to look about right at last though. I'm really hoping that when I remove the masking from the windows it won't damage the paint too much.

Paul

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 Posted: Thu May 12th, 2011 01:03 pm
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MaxSouthOz
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It looks great, Paul.  :thumbs  A friend told me that when using masking tape; don't use the edge, cut a new one with a sharp knife and then press the tape on to your trousers to stop it pulling the paint off.  It seems to work. 



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 Posted: Thu May 12th, 2011 03:15 pm
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Petermac
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MaxSouthOz wrote: It looks great, Paul.  :thumbs  A friend told me that when using masking tape; don't use the edge, cut a new one with a sharp knife and then press the tape on to your trousers to stop it pulling the paint off.  It seems to work.
That's a good tip Max :thumbs .................. but why would you want to paint your trousers .............:roll:



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 Posted: Thu May 12th, 2011 08:52 pm
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MaxSouthOz
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Ask Liz.  She understands the ways of Oz.  :mutley



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 Posted: Thu May 12th, 2011 09:20 pm
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Petermac
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:mutley:mutley:mutley:mutley

I thought it must be some outback Crocodile Dundee type thing you lot get up to after dark ....................:roll:



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 Posted: Thu May 12th, 2011 09:25 pm
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MaxSouthOz
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You got it, Jethro!  :cool:



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 Posted: Fri May 13th, 2011 10:54 am
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shunter1
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:thumbsGreat bit of scratch building Paul and a lovely result, Good to see a part of the old Donegal 3ft gauge in business again:thumbs

By the way that looks a fine building as well in your last photo.

thanks for showing your work and skill.

Derek

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 Posted: Thu May 26th, 2011 09:00 pm
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Burkitt
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Thanks all. Funnily enough Max, I remember hearing that stick-tape-to-your-trousers tip on Art Attack on the telly years ago, but I'd never thought of using it in modelling.

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 Posted: Thu May 26th, 2011 09:11 pm
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MaxSouthOz
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There's nothing new under the sun, Paul.  :mutley



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