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topic: 1823Torr Giffard LSWR 1959-71
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posted: 9 Feb 2012 14:57

from:

Dave M
 
Staffordshire Moorlands - United Kingdom

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Aft'noon' all,

Torr Giffard, my new P4 layout, trackplan at       http://backofafagpacket.blogspot.com/

is a blend of my favourite aspects of the LSWR....curving girder bridges, wooded river valley a.k.a. Weare Giffard, wide gentle river a.k.a. the River Torridge and a traffic pattern based on Coleford jnc where the Exeter to Plymouth route diverges from the Exeter to Barnstaple line. The layout has a 16ft x 12ft central scenic area with a 'Y' shaped trackplan and a 12ft x 2ft fiddle yard board on each of the 3 ends of the 'Y'. A low baseframe height of two and a half feet is envisaged surrounded by two feet high 'barn door' style opening sides to allow the sloping sides of the valley to be fashioned.  I aim to run a transitional sequence of trains 1959 - 71 showing the changing years during the operating sequence. The intention is for this to become an exhibition layout.

The trackwork is intended to be a gently flowing blend of curved pointwork and transitional curves.

I'm new to Templot and learning how to create the intended trackplan using templates. A current difficulty is finding a 'Y' point template. Can anyone help?

Many thanks

Dave

posted: 9 Feb 2012 16:01

from:

Tony W
 
North Notts. - United Kingdom

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Hi Dave.
To create a Y turnout simply take a straight one, put the peg on the Ctl+1 position, then use the F6 key and produce a negative curvature to the degree required. If a symetrical Y is required, curve until the the curving radius matches the minimium radius shown in the data window.
Tony.
Last edited on 9 Feb 2012 16:02 by Tony W
posted: 9 Feb 2012 16:25

from:

Dave M
 
Staffordshire Moorlands - United Kingdom

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Many thanks Tony, I'll start experimenting.

Cheers

Dave

Tony W wrote:
Hi Dave.
To create a Y turnout simply take a straight one, put the peg on the Ctl+1 position, then use the F6 key and produce a negative curvature to the degree required. If a symetrical Y is required, curve until the the curving radius matches the minimium radius shown in the data window.
Tony.


posted: 9 Feb 2012 17:06

from:

Tony W
 
North Notts. - United Kingdom

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Hi Dave.
If you haven't already done so, you may find it helpful to download my beginner's guide and work through it. This can be found under Forums, Hints and tips.
Tony.

posted: 9 Feb 2012 17:17

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Tony W wrote:
If you haven't already done so, you may find it helpful to download my beginner's guide and work through it. This can be found under Forums, Hints and tips.
Also available without downloading, here: :)

 http://templot.com/companion/index.html?beginners_guide_tony_wilkins.htm

regards,

Martin.

posted: 9 Feb 2012 17:32

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Tony W wrote:
If a symmetrical Y is required, curve until the the curving radius matches the minimium radius shown in the data window.
And don't forget to change to a curviform type V-crossing. :)

There is a detailed tutorial on creating symmetrical Y turnouts here:

 http://www.templot.com/martweb/y_symm.htm

It is now old and rather out of date, but still gives you the basics.

Although much favoured by modellers, a symmetrical Y turnout is quite rare on the prototype. You may want to read about split-deflection switches here:

 http://www.templot.com/martweb/gs_realtrack.htm#split_switch

regards,

Martin.

posted: 9 Feb 2012 17:40

from:

Dave M
 
Staffordshire Moorlands - United Kingdom

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I've downloaded the guide too.

Any suggestions for creating the crossing in the 'Y' where the single track lines merge on the trackplan? The range of angles available in the 'V' crossing angles don't seem sufficient. At what point does a diamond crossing change to a flat crossing?

Cheers

Dave

posted: 9 Feb 2012 22:04

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Torr Giffard LSWR 1959-71 wrote:
Any suggestions for creating the crossing in the 'Y' where the single track lines merge on the trackplan? The range of angles available in the 'V' crossing angles don't seem sufficient. At what point does a diamond crossing change to a flat crossing?
Hi Dave,

Here's a quick dabble on your rough plan:

2_091645_400000000.png2_091645_400000000.png

Templot will go down to 1:1.5 angle. As you can see your crossings here are around 1:2.5 so easily within range, and it's easy to get the basic alignments using make diamond crossing at intersection in TDV. At these short angles the timbers will need a bit of shoving to tidy them up.

By a "flat crossing" I think you mean a short-angle crossing? I don't know of a specific limit, but Templot doesn't directly support anything shorter than 1:1.5

At those angles the prototypes vary a lot and tend to be made up as one-offs. Below 1:1.5 in Templot you can only overlay plain track and then either mark up your prototype on the print, or create a mass of partial templates and shoved timbers. More about short-angle crossings:

 message 812

regards,

Martin.

posted: 10 Feb 2012 05:53

from:

Dave M
 
Staffordshire Moorlands - United Kingdom

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Lovely! Thanks Martin, Templot is much easier to make progress with than I'd feared.
Martin Wynne wrote:
Torr Giffard LSWR 1959-71 wrote:
Any suggestions for creating the crossing in the 'Y' where the single track lines merge on the trackplan? The range of angles available in the 'V' crossing angles don't seem sufficient. At what point does a diamond crossing change to a flat crossing?
Hi Dave,

Here's a quick dabble on your rough plan:

2_091645_400000000.png2_091645_400000000.png

Templot will go down to 1:1.5 angle. As you can see your crossings here are around 1:2.5 so easily within range, and it's easy to get the basic alignments using make diamond crossing at intersection in TDV. At these short angles the timbers will need a bit of shoving to tidy them up.

By a "flat crossing" I think you mean a short-angle crossing? I don't know of a specific limit, but Templot doesn't directly support anything shorter than 1:1.5

At those angles the prototypes vary a lot and tend to be made up as one-offs. Below 1:1.5 in Templot you can only overlay plain track and then either mark up your prototype on the print, or create a mass of partial templates and shoved timbers. More about short-angle crossings:

 message 812

regards,

Martin.




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