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Old 08-07-2018, 08:13 AM   #41
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Artur Gorote
 
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Default Contrun2.

The boards for the mainly hidden section of the continuous run are being installed. This the first part of the construction that will have to come down afterwards for laying the track. On this part of the layout I've made extensive use of battens fixed under the boards to make it easier to have smooth gradients (and level sections) and to simplify the supports. There will be a problem with these anyway where tracks lie on two levels one above the other, especially where headroom is restricted. There are no detailed plans for some of them, so I'll have to do it by trial and (probably a lot of) error.

The work is documented more fully on flickr:
https://www.flickr.com/photos/537755...57693670264075

Regards,
Artur
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Old 01-08-2018, 06:21 PM   #42
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Artur Gorote
 
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Default 3-rail sidings etc.

The latest stage of the work is well under way, namely the northern approach (light green on the diagrams). I found I had to use the threaded rod method here as well, owing to the need to "tiptoe through the tulips" between the northern siding tracks. The 3-rail sidings were completed previously.

The work is documented more fully on flick:
https://www.flickr.com/photos/537755...57693670264075

Regards, Artur
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Old 01-08-2018, 07:34 PM   #43
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Very very impressive.
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Link to my layout in progress South Auckland Junction
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Old 01-08-2018, 08:15 PM   #44
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Looking really good.
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Old 02-08-2018, 10:41 AM   #45
ians
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Puts my attempts at a layout to shame, but I'm having fun anyway!
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Old 02-08-2018, 05:16 PM   #46
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Default Thank you.

Many thanks for your compliments, gentlemen. One thing I noticed (not for the first time) when setting up the northern ramp was that OSB (12 mm on my layout) is more stable than it's given credit for. Those threaded rod supports are some 15-18 inches apart. Please excuse the chaos and the mess; I always was a sloppy beggar.
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Don't run your efforts down, Ian, having fun's the point of it all.
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Old 05-08-2018, 03:02 PM   #47
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Default Northern approach.

The boards for the northern approach are in place and fixed down (except at the top, where it still has to join the station boards from the old layout). There was also the task of getting the boards lined up on each side of the gap that is to be closed by the bridge. There is still a small discrep of 1 - 1.5 mm which will have to be trued up before actual bridgebuilding starts. The ends have to be flush; the boards and the bridge have to form a smooth flat surface without steps or humps.

The work is documented more fully on flickr:

https://www.flickr.com/photos/537755...0264075/page2/

Regards,
Artur
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Old 13-08-2018, 08:11 PM   #48
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Default Theory and practice.

First steps in mounting the top-level boards above the northern loops and contrun2. Because these sections occupy the entire lower level, I have to support the top level on battens mounted on threaded rods in the same way as the northern approach. Each set of rods was cut to size to match the gradient of the low-level boards and the battens mounted on them and levelled up (pic 124).

As the southern approach is on a descending gradient between the rest of the top level, I had to provide separate supports, "tiptoeing through the tulips" as before (pic 125). When it came to plotting the positions of the threaded rods where the northern loops and contrun2 merge at the bottom of the northern approach, I tried to mark the track lines by the usual grid reference method but discovered serious discrepancies in the computer diagram. Somewhere I had obviously miscalculated and/or mismeasured. I therefore had to resort to creating a paper diagram, scale 1:1, courtesy of Peco, and lining this up in the space available. It was necessary in the process to shorten some of the points by two sleepers to fit the northern loop entry in (pic 126/7).

The contrun2 points turned out not to need any corrections (pic 128). This little problem shows what happens when you place too much reliance on theoretical plans.

The work is also documented on flickr:
https://www.flickr.com/photos/537755...70264075/page2

Cheers,
Artur
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File Type: jpg NL124x.jpg (297.9 KB, 17 views)
File Type: jpg NL125x.jpg (368.4 KB, 14 views)
File Type: jpg NL126x.jpg (347.9 KB, 13 views)
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Old 22-08-2018, 12:00 AM   #49
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Artur Gorote
 
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Default Ramps in the northwest corner.

The boards in the northwest corner are complete (except for some last-minute fixing down). This was probably the most challenging stage so far, as I had to arrange supports for a number of concentric curved ramps on varying gradients and, in places, above existing low-level tracks. Setting these up at the awkward angles needed on a four-square main frame resulted in some quite funny shapes (and not so funny language).

One bonus was the discovery (if you can call it that) of the method of making the supports from threaded rods. It saved a lot of headscratching (and splinters) from combining offcuts of various thickness to get the right height.

The work is documented more fully on flickr:
https://www.flickr.com/photos/537755...70264075/page2

Cheers,
Artur
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File Type: jpg NL139x.jpg (577.8 KB, 16 views)
File Type: jpg NL142x.jpg (408.4 KB, 19 views)
File Type: jpg NL147x.jpg (270.5 KB, 17 views)

Last edited by RSR Engineer; 22-08-2018 at 12:01 AM. Reason: spelling
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Old 22-08-2018, 08:30 PM   #50
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That's an impressive project you've got going there.
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