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Ratio Viaduct Kit construction - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Sat Nov 6th, 2010 09:24 am
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Mickelaar
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Gwiwer wrote: Today I got plastered.
You me both!!
Gwiwer wrote: Not as you might suppose in the alcoholic sense but in the casting and blathering sense.
 Oh. I get you now :P

Mate the viaduct looks 10 times better than the previous span you had. Definately worth the work. And an absolutely grand addition to the bay!



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 Posted: Sat Nov 6th, 2010 12:40 pm
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Michael Thornberry
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Hello Rick,
Really excellent modelling, mate. Could you please advise on the height of the arches from "ground-level/water-level" and the "total-height" overall,
Kind Regards,
Michael Thornberry.
PS:- Hope you have a good "operating-day" with Mike

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 Posted: Sat Nov 13th, 2010 01:28 am
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Gwiwer
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Here is the news. I have quietly been working away on painted backscenes which will eventually be fitted around most of my layout. The first section to be painted fits behind the viaduct.

A test shot to confirm appearance and that the cloud base is about right. Obviously still some way to go but this shot illustrates also both boats which feature in the scene (one of which is half-sunk) and the overall visual impact of a train crossing the viaduct.



In answer to Michael Thornberry's question the heights are:-

From base to top (overall height of module) including backscene = 570mm
From base of structure to river bed in main channel = 55mm
From river bed in main channel to top of arch = 213mm
From river bed to top of viaduct structure (cap stones) = 238mm
From river bed in channel to average height of tidal mud flats = 16mm giving a height from mud flats to inside arch = 197mm
and to top of structure = 222mm

There will in due course be guard rails along the viaduct cap stones which will rise about 10mm above the stone course.

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 Posted: Sat Nov 13th, 2010 04:53 am
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John Dew
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It is lready very impressive but when complete will be fantastic:thumbs

Congratulations



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 Posted: Sat Nov 13th, 2010 06:19 am
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Christrerise
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How are you going to stop the water falling off the edge of the board? :roll:

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 Posted: Sat Nov 13th, 2010 06:22 am
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Gwiwer
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Christrerise wrote:
How are you going to stop the water falling off the edge of the board? :roll:

It's Magic Water, Chris, so it should be able to stop itself! Just don't break the spell :It's a no no

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 Posted: Sat Nov 13th, 2010 09:36 am
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ddolfelin
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Not a criticism, just a suggestion, Rick.
Is it too late to feather the clouds at their bases a little more?

Looking forward to seeing the finished product.
Good work (and lots of it).



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 Posted: Sat Nov 13th, 2010 09:39 am
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Gwiwer
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ddolfelin wrote:

Is it too late to feather the clouds at their bases a little more?


I'll see what can be done next time the paints are out. I can only add to what's there so maybe a little more paint above the base worked into the cloud itself might achieve the same effect.

Lower level cloud bases such as the cumulo-nimbus type often represented scenically are usually quite well defined flat planes which show as a straight line seen side-on.

As part of the finished scene I am also hoping to get some higher cloud types in such as whisps of cirrus. Ironically to give depth these need to be at a lower height (and seen perhaps through the viaduct arches) than what is already there.

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 Posted: Sat Nov 13th, 2010 09:50 am
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sparky
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It is looking very nice Rick:thumbs. I cant wait now for the Magic water to go on.  will just have to keep watching. I suppose some sort of temporary dam is needed to stop the liquid dripping through the edge .Any thoughts on how to go about that.?  I wonder if sticky duct tape would do it ,and peel off without too much damage. Good luck with it Rick i am sure it will turn out well in the end.



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 Posted: Sat Nov 13th, 2010 09:53 am
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phill
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Very nice Rick, hope the magic water go's on ok and make it look even more better, if you can.

Phill

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 Posted: Sun Nov 14th, 2010 02:48 am
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John Dew
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sparky wrote: It is looking very nice Rick:thumbs. I cant wait now for the Magic water to go on.  will just have to keep watching. I suppose some sort of temporary dam is needed to stop the liquid dripping through the edge .

Magic Water goes anywhere water will go. I used a temporary dam of plasticard and sealed it with pva and a coat of magic water........and that impeded the flow rather than prevented it.......I would recommend applying some form of sealant/caulking to to the dam

 



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 Posted: Mon Nov 15th, 2010 12:53 am
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Marty
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I used a line of sticky tape as the dam for my water pour. Worked a treat and afterwards just peeled off.

A small test first maybe Rick?



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 Posted: Mon Nov 15th, 2010 01:11 am
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Gwiwer
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There will be as many tests first as I deem necessary!  If it doesn't stay put first test  I'll try other ways until it does but not on the main scene until I am happy.  There's only really one chance to get that right.

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 Posted: Sat Nov 20th, 2010 07:15 am
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Gwiwer
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To round off the topic I will add a few more pictures of the viaduct scene.

Various bits of greenery have been added; little "corbels" of green on the downstream side of each pier indicate that silt and plant life accumulates here but is eroded away from the upstream side. Small tufts of reeds and patches of slime have been added through the arches at river-bed level and more green has been attached to the top of the piers where the stonework abuts the brick inverts.

The decorative stonework around the arches and the cap stones have been toned down to a greyer shade from the previous honey yellow and some vegetation has been allowed to grow on the upper courses of stonework.

The first pour of Magic Water is in and is curing overnight before the final pour tomorrow.

* * * * * * * * *

The whole scene resting on the scenics trolley where it has been built. A temporary dam prevents the Magic Water escaping. There is still some scenic painting to complete and infil vegetation but this module is now very close to completion.



Detail of the rushes and grass at the foot of one of the piers.



Taken from farther back and showing the half-sunken boat in the mud flats. Also showing a few stray pieces of flock which need to be lifted off carefully!



And finally looking up from the river bed showing the vegetation added at several heights.



This module is now sufficiently advanced that once the second pour of Magic Water is on and set it will be fitted to the main layout.

As such this project as a separate work is concluded and the scene will be dealt with in my main layout topic in future.

I hope this record of the build including the good and the bad, the easy and the hard has been both interesting and educational.

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 Posted: Sat Nov 20th, 2010 08:38 am
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Ken
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Gwiwer wrote: topic in future.

...........................I hope this record of the build including the good and the bad, the easy and the hard has been both interesting and educational.


It sure has Rick, thank you for a great tutorial.

Ken



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 Posted: Sat Nov 20th, 2010 04:35 pm
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Michael Thornberry
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Hello Rick,
This "how to" on the Viaduct has been of great assistance in my understanding of the Modelling Methods necessary to build the Viaduct on my Lay-out. Many Thanks indeed, mate. High-tide will be when? and how much of the mud-flats will be left showing? 20/30/40%,
Kind Regards,
Michael Thornberry.

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 Posted: Sun Nov 21st, 2010 10:54 am
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Chubber
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H.V.P.    :thumbs


[High Value Packet - written on some cargo manifests so that the dockers wouldn't be tempted to pilfer boxes of watches etc...quickly re-worded 'Half-hitch Very Promptly]


Doug




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