NWNG Railways No.1

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River Lin
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NWNG Railways No.1

Post by River Lin » Mon Apr 17, 2017 1:40 pm

Hi all.
With Peterborough and its MOTY out of the way it is time to think about my next project. NWNG of course but what to go with my other coaching stock. One i have never seen in model form and very rare in photographs is No.1. One of the first two delivered to the fledging railway in 1874 before any locos had been delivered or buildings to store them in. They were designed by Spooner and only a blurry and indistinct plan is lodged in Caernarfon.
IMG_20170417_133048.jpg
Makers photograph
IMG_20170329_154602.jpg
One of the very few photos of the coach in service.
IMG_20170329_154727.jpg
I have produced my own production drawing and have made a start on cutting ply. More of which later.
David.
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Re: NWNG Railways No.1

Post by River Lin » Mon Apr 17, 2017 3:16 pm

The first job was to scan the Caernarfon drawing onto MS Publisher page. Then crop the scan to the exact edges of the coach.
Resize the scan to 402mm (25' 2" full size converted to 16mm to the foot) and set Publisher to print the scan onto a poster. This then prints out on 3 pieces of A4, automatically adding an overlap to allow for gluing together.
Ms Word also has these scanning functions
From this full size scan i was then able to produce my own working drawing on my Rotring drawing board (just fits) from my collage days in the early 70s. :(
IMG_20170417_125639.jpg
D.
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Re: NWNG Railways No.1

Post by River Lin » Mon Apr 17, 2017 3:47 pm

I then was able to transfer this drawing onto 3 pieces of 0.8mm ply to make one side of the coach. I have decided to make the sides as a 3 layer sandwich with the middle layer cut to allow for inserting and holding the glazing.
IMG_20170417_125554.jpg
I have also cut out seperate droplights to slide up and down in runners in the central layer. Hopefully to allow for opening windows in the completed coach. All this cutting out has obviously to be copied for the second side. Use a sharp blade and replace frequently.
I have yet to cut out the openings for the ducket in the guards compartment.
D.
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Re: NWNG Railways No.1

Post by Soar Valley Light » Mon Apr 17, 2017 8:52 pm

Great progress David and quick too. I'm fascinated to see how you have produced the working drawings. I look forward to watching the progress.

Andrew
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Re: NWNG Railways No.1

Post by LNR » Tue Apr 18, 2017 12:50 am

I really like the fact that the windows will actually open, though I think I can imagine how much extra work will be involved. You must be a very patient man. Do I take it that you are cutting these out by hand?
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Re: NWNG Railways No.1

Post by ge_rik » Tue Apr 18, 2017 7:59 am

Wow!! Looks good already. You must have a really steady hand.

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Re: NWNG Railways No.1

Post by River Lin » Tue Apr 18, 2017 8:51 am

Hi all.
Yes you do have to be patient and take the cutting slowly but we all make mistakes. Wood glue is good stuff :D .
Almost all of my work is done on a piece of kitchen worktop using mostly hand tools. The only time a machine comes in to play is when i use a cheap scroll saw to cut curved roof spars in 3mm ply.. with my nwng pickering brake coach i did try to use this scroll saw to cut the window openings but i found difficulty in cutting straight lines and could not get neat edges to the cut lines so went back to the knife and ruler method in thin ply.
I'll hopefully show more progress later today.
D.
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Re: NWNG Railways No.1

Post by LNR » Tue Apr 18, 2017 9:38 am

It's very good to see hand skills still alive and well. So would the ply your using be around 1mm thick for each lamination?
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Re: NWNG Railways No.1

Post by River Lin » Tue Apr 18, 2017 9:58 am

Hi Grant.
The ply i use is 3 ply with a total thickness of 0.8mm which i presume is made especially for modellers and is relatively easy to cut. In practice it is nearer to 0.95mm. This means that when i glue three layers together to make the 'sandwich' it makes about just under 3mm in total. Plenty strong enough for my needs.
David.
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Re: NWNG Railways No.1

Post by River Lin » Tue Apr 18, 2017 10:54 pm

Hi all. Latest update.
IMG_20170418_100714.jpg
Dut to the central glazing layers of ply having rather delicate parts i decided to get them glued to the front layers of the sides. (One side shown). As this coach has tumblehome sides i left the lower 15mm of the sides without glue so that i can insert glue with a fine brush and form the tumblehome curve along the lower edge at a later date. Please be aware i have not done this before so we will have to see how this goes.
I have laid a couple of the sliding droplights in position to give an idea of how they should work.
Above this side is the coach inside veneer that will have all of the internal detail scribed onto it and varnished before gluing in.
I have laminated the two ends using 3 layers of ply as before. One is plain and the one for the guards compartment end has two window openings cut into it with the central ply layer having larger window cutouts to take glazing that can slide in from the top.
I have cut the beading for the two coach ends from a sheet of plastikard. I had to work this out myself from the photograph as it is not shown on the plan. The side areas of the beading have not been completly cut yet as these will need to be profiled as the tumblehome when i have worked it out.
Progress might be a little slower now after the holiday weekend but i will keep you posted as it progresses.
David.
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Re: NWNG Railways No.1

Post by Steamcoaster » Wed May 31, 2017 2:32 pm

How inspiring. I'm moving into scratch builing and looking to do a Pickering brake. I like the construction technique.
How is it going?

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Re: NWNG Railways No.1

Post by River Lin » Thu Jun 01, 2017 1:15 am

Hi.
Bad back brought construction to a halt lately but am scribing the panelling on the inside coach layer this week. Will post a pic in a couple of days. D.
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Re: NWNG Railways No.1

Post by Steamcoaster » Tue Jun 06, 2017 2:25 am

Would you be able to scan in the drawings to use?

It's a lot no way to Caernarfon.

Cheers

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Re: NWNG Railways No.1

Post by River Lin » Sun Jun 11, 2017 1:29 pm

Hi Steamcoaster. Sorry don't know your name.
As a Welsh Highland Railway society member and modeller I must point you in the direction of the 'Welsh Highland Heritage Group'. They are a fantastic resource for all things old WHR and NWNG railway.

Google-
Welsh Highland Heritage Group.
From the menu choose 'Journal'
Find number 62
On page 10 you will find the drawing I am using.

Hope this helps.
David.
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Re: NWNG Railways No.1

Post by Steamcoaster » Wed Jun 14, 2017 1:16 am

I should rejoin. I'm Rupert Lodge. You probably know my dad.

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