Templot Club Archive 2007-2020                             

topic: 1132Double Junction
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posted: 26 May 2010 05:44

from:

kenbec
 
Australia

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Hello out there,

I am replacing all of the Peco TurnoutsI have installed on the continuous run portion of a layout I am actually still designing. I am not trying to exactly match the Peco Turnouts with Templot Turnouts but start with a rubbing in each case and take it from there. The continuous run was built before I got Templot but the rest of my design has been discarded in view of the greater opportunities now  open to me through Templot.
However in two locations a double junction is still the best  option to allow me to transition to and from the other parts of my future design. Both are on straight stretches and, having previously been constructed using standard Peco parts, do NOT involve "irregular diamond crossings" if that is still the accepted term :D.
My question is could someone out there point me in the direction of anything which covers the construction of Double Junctions? I have searched Templot but have not found anything describing the construction of a Double Junction. I intend to make these "freestyle" ,ie without rubbings,  as I have never been happy with what I was forced to accept using Peco.

@Martin If you intend to provide an answer you are not allowed to before the First of June (your rules). :D

regards,

Ken

posted: 26 May 2010 20:34

from:

Jim Guthrie
 
United Kingdom

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Kenneth Beckett wrote:
My question is could someone out there point me in the direction of anything which covers the construction of Double Junctions? I have searched Templot but have not found anything describing the construction of a Double Junction. I intend to make these "freestyle" ,ie without rubbings,  as I have never been happy with what I was forced to accept using Peco.
Kenneth,

One way to make a double junction is to create a turnout template to your requirements then use this template to form a simple crossover (in "Tools" menu).   The turnout template created with this operation can now be converted into a diamond.  Copy the original turnout and join it to the through road of the diamond - creating the turnout on the other main line..   Add a straight section of track to the diverging road of the diamond.  Make double track (Tools menu again) on this straight section to create the other diverging road and extend this piece of track to cross over the main road.   Then select the second turnout you have just copied and roam it along the main track until its divering road lines up with the extended straight track.  Once lined up,  adjust the length of the straight diverging track to match the end of the diverging road on the second turnout.

I think that might just about make sense - simples - maybe. :D

Jim.

posted: 26 May 2010 22:24

from:

Alan Turner
 
Dudley - United Kingdom

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Jim Guthrie wrote:
The turnout template created with this operation can now be converted into a diamond.  Copy the original turnout and join it to the through road of the diamond - creating the turnout on the other main line..  

It's simpler than that you simply make a ladder crossover from the tools menu. That gives you the crossing bit and the adjacent track. All you then do is insert a turnout in the adjacent track for the double bit.

Alan

posted: 27 May 2010 03:08

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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This is the "Trackbuilding topics" forum. I think Ken is asking about how to build a double junction, not how to create one in Templot. :)

Martin.

posted: 27 May 2010 06:30

from:

kenbec
 
Australia

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Martin Wynne wrote:
This is the "Trackbuilding topics" forum. I think Ken is asking about how to build a double junction, not how to create one in Templot. :)

Martin.
Thanks Martin,
Mea Culpa, sorry if  I have used the wrong forum Jim and Alan have in fact answered the question I was asking.

The forum description includes the wording "Materials and methods, tools and techniques" so I thought my question fitted in under techniques.
Come to think of it I guess the subsidiary description I used "How to build" is misleading.

Having said all of  that, any information on building techniques and pitfalls, if such is available, would be gratefully received. If not, no doubt I will be able to muddle through. :)

Many thanks to Jim and Alan for their help, I think I will try both solutions in order to widen my Templot experience.

Templot Talk is a great aid to me and I can't understand why any Templot user wouldn't join.
The members have proved to be exceptionally helpful. In addition I have found the answer to many of my questions by simply searching through it and have come across some quite - er - stimulating debates besides. :)

All the best,

Ken
Last edited on 27 May 2010 06:35 by kenbec
posted: 27 May 2010 07:38

from:

Jim Guthrie
 
United Kingdom

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Kenneth Beckett wrote:
Having said all of  that, any information on building techniques and pitfalls, if such is available, would be gratefully received. If not, no doubt I will be able to muddle through. :)
Kenneth,

If I'm building a complex with a diamond in it,  I usually start with the diamond and work outwards.  There are four crossings to line up in a diamond and it's easier to get them all correct if you start with them.  You sometimes find that starting with other components of a complex can cause slight errors in placement which requires you to start doing a bit of heaving and shoving when it comes to laying the diamond crossing.

Jim.

posted: 27 May 2010 09:40

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Hi Ken,

I agree with Jim -- start with the diamond. For a diamond-crossing to line up correctly it is essential that the two V-crossings are exactly the correct distance* apart. So it's best to start by installing the two vees.

If you print a rails-only copy of the template on tracing paper**, you can lay it on the rail tops to check the vee positions and alignment before going any further.

If you print some extra copies of the template on thin card or 160gsm paper, you can cut them out along the rail edges with a craft knife and try them against the rails in various positions to check alignments as you build up the diamond-crossing.

*this means using the correct template for the track gauge. Don't try to build a 00-SF diamond-crossing on a 00-BF template, or an EM diamond-crossing on a P4 template. You can just about get away with such bodges for a turnout, but not for diamonds and slips.

**for the ultimate accuracy, do a separate printer calibration for tracing paper, and check the printed template against the paper/card templates.

regards,

Martin.

posted: 27 May 2010 11:35

from:

kenbec
 
Australia

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Hello Jim and Martin,

Sounds like I am going to have a lot of fun with this one, I am building in N gauge and my old fingers have a bit of trouble with the small size of the track, :( at least I am using code 80 which helps. One of the problems I find is that my track is flat bottom and the printouts are for code 55 bullhead? or whatever, it makes life a little more interesting when fitting the track to the templates.
I am still constructing the first turnout because I ran out of PCB (it sure gobbles it up) and I have to order a considerably larger quantity from a supplier in South Australia so I wanted to get started on designing the double junctions while waiting.

Thanks again to you both for the help you so freely offer.

Regards,

Ken



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