Coegnant branch of the Blue line

Post pictures and information about your own personal model railway layout that is under construction. Keep members up-to-date with what you are doing and discuss problems that you are having.
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beerandpies
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Re: Coegnant branch of the Blue line

Postby beerandpies » Wed Sep 09, 2009 11:26 pm

That is a beautiful piece of engineering and an amazing model. I absolutely love it.
cheers, Mark.
Scragg End

paulsrail
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Re: Coegnant branch of the Blue line

Postby paulsrail » Thu Sep 10, 2009 5:58 pm

Here are some more photos of the bridge in various positions.
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[iImagemg][/img]
[iImagemg][/img]
Image
[imImageg][/img]
Paul

Fifey
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Re: Coegnant branch of the Blue line

Postby Fifey » Thu Oct 29, 2009 8:27 am

You mad, brilliant bustard!

How smoothly does it work? And how long til we can see it operating on a layout/ in it's own scenic module?

paulsrail
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Re: Coegnant branch of the Blue line

Postby paulsrail » Sun Nov 01, 2009 7:58 pm

Here is a photo of the bridge in position, i,ll finishthe detailing and motorise it im the near future.
Image
Paul

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GROTLAND
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Re: Coegnant branch of the Blue line

Postby GROTLAND » Sun Nov 01, 2009 10:19 pm

That is just amazing! I love the way it dominates and dwarfs the trains. Wouldn't be possible in styrene without warpage. I'm guessing there's no rivets on it. You would have to be a real eccentic to put rivets on it but the counters of our hammered rounded friends get a bad press and I don't think it's justified. Those people who seek modelling perfection are to be respected! Have you checked these out Paul?
http://www.archertransfers.com/catSurfaceDetails.html
Incredible modelling you're doing.

Fifey
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Re: Coegnant branch of the Blue line

Postby Fifey » Sun Nov 01, 2009 11:33 pm

Wow!

sheep21
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Re: Coegnant branch of the Blue line

Postby sheep21 » Thu Nov 12, 2009 12:39 am

truly gob smacked, real engineering that is :mrgreen:

Dad-1
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Location: Dorset - A mile from West Bay.

Re: Coegnant branch of the Blue line

Postby Dad-1 » Thu Nov 12, 2009 9:22 am

As someone has already said "WOW" That, Paul, is just mind boggling and knowing your passion for engineering I expect with your planned motorising it'll probably switch on flashing warning lights as it prepares to raise !!
brilliant work.

Geoff T.
Remember ... I know nothing about railways.
viewtopic.php?f=22&t=32187 and Another on viewtopic.php?f=22&t=28436&start=60&st=0&sk=t&sd=a

paulsrail
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Re: Coegnant branch of the Blue line

Postby paulsrail » Thu Nov 19, 2009 7:49 pm

Hi Geoff T
Yes you are right, flashing lights especially when the bridge is raised being in scale 269 feet high.
The only way i can think of to motorise the bridge is to use air cylinders. The main purpose of the bridge is to allow access in and out of the garage, so there will be times when the bridge will have to be manually operated. By using air cylinders instead of an electric motor and gearing, if the bridge is to be maually operated the drive can be dis-engaged simply by releasing the air pressure. With a mechanical drive there would have had to have been a method of dis connecting the drive.
Paul

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Si_Donal
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Re: Coegnant branch of the Blue line

Postby Si_Donal » Thu Dec 03, 2009 8:43 pm

Paul,

Your colliery is awesome - well done.

Si
Si

Leisure Time = those moments between the lists of jobs that a wife gives you to do.

Visit my layout thread at: http://www.newrailwaymodellers.co.uk/Fo ... 22&t=24781

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egroeg93
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Re: Coegnant branch of the Blue line

Postby egroeg93 » Fri Dec 04, 2009 9:32 pm

I really love the Colliery!!

paulsrail
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Re: Coegnant branch of the Blue line

Postby paulsrail » Tue May 11, 2010 5:49 pm

Work has restarted on the bascule bridge. The two counter weights being made of wood and not concrete as the real ones were are not heavy enough. As a result a brass bar of 13 ounces was fixed to the counter weights to balance to bridge and make the load on the electric motor as light as possible.
Image
I have decided to motorise the bridge in the same manner as the real bridge, that is using two operating arms with rack fitted underneath, and guides above and driven by sprockets from an engine house.
Image
The photo above and the ones to follow show how this and the real bridge operated.
Image
Image
Image
Image
The racks were made from plastic chain fixed at both ends of the arms and driven by sprockets on the output shaft of the gear box. The gearing is such that the motors seed of 6000 rpm is reduce to 2.5 rpm
Paul

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daryl43068
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Re: Coegnant branch of the Blue line

Postby daryl43068 » Fri May 14, 2010 10:21 pm

Wow! What an amazing model, and absoluty stunning how it works!! Well done!

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GROTLAND
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Re: Coegnant branch of the Blue line

Postby GROTLAND » Sat May 15, 2010 12:41 am

Truly an engineering marvel!

Dad-1
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Re: Coegnant branch of the Blue line

Postby Dad-1 » Sat May 15, 2010 10:23 am

Hi Paul,

Glad to see you back ....... feared you may have gone into 'rest' mode.
Just awe inspiring, Will you ever be able to have this fitted and working on a public display ?? So much of what we do is very ordinary, yes different ideas and scenes, but this is very much something special which I for one would love to see !!

Geoff T.
Remember ... I know nothing about railways.
viewtopic.php?f=22&t=32187 and Another on viewtopic.php?f=22&t=28436&start=60&st=0&sk=t&sd=a


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