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                                       Marcway 3way Tandem Turnout
     
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1st message | this message only posted: 11 Sep 2018 18:24
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from:
r_wilton
Bangor, United Kingdom

 

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Hi, i wonder i anyone can help a novice occasional user.
I have a Marcway 3 way tandem righthand turnout with 60" and 48" radius turnouts.
I would like to utilise this in a layout to be completed in templot.

Problem is i'm having trouble trying to make a template for the 3 way.
If anyone can help i'd be most grateful.

Ray.

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2nd message | this message only posted: 11 Sep 2018 18:42
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Hi Ray,

Can you post a photo of the Marcway? Or maybe actually scan it? Or take a rubbing from it and scan that?

It's difficult to advise without seeing what you are trying to replicate. I have no idea what Marcway might refer to as a 60"/48" tandem turnout. Presumably this is 4mm scale, 00 or EM?

To create a tandem turnout in Templot, click the tools > make 3-way tandem turnout > menu items. There are quite a lot of settings and options, you probably need to read this page first:

 http://templot.com/companion/3_way_tandem_turnouts.php

cheers,

Martin.

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3rd message | this message only posted: 11 Sep 2018 19:27
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from:
r_wilton
Bangor, United Kingdom

 

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Hi Martin,Sorry i should have been more specific, it is O gauge (fine).

I've attached a photo (hopefully) with a few measurements penciled in, hope that helps.
In the meantime i'll have a read of the article.
Ray.

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Attached Image (viewed 143 times):

Marcway 3way.jpg
 
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4th message | this message only posted: 11 Sep 2018 22:15
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Hi Ray,

Thanks for the photo. To make an exact copy I would need something more precise, such as an actual scan of the Marcway tandem.

p.s. I note that it has a check rail missing. :( Also a vee nose hanging in fresh air, and strangely narrow spindly timbering.

I have created this 0-MF tandem which I think may be fairly close. The .box file is attached below. If you print it out, place the Marcway tandem over it and take a photo as square on as possible, I may be able to adjust it for a better fit.

The V-crossing angles in order are 1:4.5  -  1:7.5  -  1:5.5

The radii are 1972mm  (77.6")  -  1287mm (50.7")







cheers,

Martin.

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Attachment: short_tandem_for_ray_2018_09_11_2232_38.box (Downloaded 8 times)
 
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5th message | this message only posted: 12 Sep 2018 09:37
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from:
r_wilton
Bangor, United Kingdom

 

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Hi Martin,Many thanks for the box file. 

Ive attached a scan (pdf) although its in two pages as my scanner is only A4.
The turnout angles of the .box file seem a little too sharp.
I'm not too worried about the accuracy of the switches etc, just the exit angle as i'm not making the turnout, just want to incorporate it in a new layout.

Many thanks for your help

PS i did find that for a starter the REA semi-curve B+V-6 regular V crossing (72.9" radius) is a pretty good fit. 

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Attachment: Tandem.pdf (Downloaded 2 times)
 
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6th message | this message only posted: 12 Sep 2018 09:38
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from:
r_wilton
Bangor, United Kingdom

 

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Heres a photo of the tandem on top of the .box file.
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Attached Image (viewed 102 times):

tandem plot.jpg
 
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7th message | this message only posted: 12 Sep 2018 09:53
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Thanks Ray.

I will have a look at making a better match.

cheers,

Martin.

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8th message | this message only posted: 13 Sep 2018 18:17
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from:
Martin Wynne
West Of The Severn, United Kingdom



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    PLEASE -- NO-ONE SHOULD BUILD THIS TANDEM

   
Or if you do, don't tell anyone that it came from Templot !

Hi Ray,

This should be a better match to your scan. Only the rail ends match the Marcway tandem, internally the rail alignments are different, as you can see.

In scaling the scan, I assumed the track gauge is exactly 32mm.

I have put the pegs on the rail ends, ready for you to use this .box file in your track plan.

The crossing angles in order are 1:5.15  -  1:8.93  -  1:6.5

The radii are 2388mm (94") and 1726mm (68"). That's a lot larger than your quoted 60"/48" (which sounds unlikely for 0 gauge -- did you make a mistake there?)

Please don't actually build this tandem, the .box file is solely to allow you align adjacent templates to your existing item of pointwork. The 8.93 V-crossing cannot be properly checked as you can see -- as drawn the wheel flange is obstructed. On the Marcway tandem that check rail is missing, so there is a risk of derailments.



I converted your scan to a negative image, to make it easier to see the rail edges:



.box file attached.

I will post the .bgs and .sk81 files next.

cheers,

Martin.

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Attachment: ray_tandem.box (Downloaded 2 times)
 
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9th message | this message only posted: 13 Sep 2018 18:23
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from:
Martin Wynne
West Of The Severn, United Kingdom



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BGS file

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Attachment: ray_tandem.bgs (Downloaded 2 times)
 
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10th message | this message only posted: 13 Sep 2018 18:24
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from:
Martin Wynne
West Of The Severn, United Kingdom



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SK81 file.

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Attachment: ray_tandem.sk81 (Downloaded 2 times)
 
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11th message | this message only posted: 13 Sep 2018 20:34
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from:
r_wilton
Bangor, United Kingdom

 

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Many thanks Martin, your a star. 72"/48" was written on the packet so i assumed that was the radii. Sorry i got that wrong in my original post.

Excuse my ignorance, but what are the BGS and SK81 file for?
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12th message | this message only posted: 13 Sep 2018 20:50
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from:
Martin Wynne
West Of The Severn, United Kingdom



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r_wilton wrote: Excuse my ignorance, but what are the BGS and SK81 file for?Hi Ray,

So that you (or anyone interested) can load the background scan into Templot as in my screenshots.

You may want to make some adjustments if it doesn't quite match.

cheers,

Martin.

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13th message | this message only posted: 13 Sep 2018 20:52
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from:
r_wilton
Bangor, United Kingdom

 

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Thanks.

Ray.
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