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topic: 21342mm Finescale Tandem (or 3 way?)
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posted: 6 Jan 2013 11:39

from:

rammstein2609
 
 

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Hi all,

I am currently designing a stay at home layout in 2mm finescale which can be 'played with' when my exhibition layout is stored away between shows.

I have a plan in mind which involves two tandem points. I downloaded the help video and followed it through. The attached template is my second attempt as the first was a bit squashed together.

I was wondering if anyone had a spare few minutes to have a look at it and tell me if it would work if I built it. To my eye it looks good but I'm no track expert. Obviously some of the check rails will be built as one piece instead of individual lengths of rail.

Thanks for your time

Martin
Attachment: attach_1555_2134_2fs_3way.box     378

posted: 6 Jan 2013 12:30

from:

Jim Guthrie
 
United Kingdom

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Martin,

It looks OK to me. Sometimes a big factor in building the more complex pointwork is arranging isolating gaps since some bits of rail can be quite short and can be difficult to anchor firmly. In the case of your tandem, you might consider treating the centre crossing and the upper crossing as one electrical unit which would avoid having to put a break in the short rail between the crossings.

Jim.

posted: 6 Jan 2013 14:40

from:

rammstein2609
 
 

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Thanks for replying Jim.

I have found a few wiring diagrams for tandem turnouts and they all have at least two crossings wired together.

I have a box full of Cobalt point motors with built in DCC decoders so will utilise the onboard switch to change polarity.

Thanks

Martin

posted: 7 Jan 2013 10:24

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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rammstein2609 wrote:
Obviously some of the check rails will be built as one piece instead of individual lengths of rail.
Hi Martin,

Looking good. :)

If you upgrade to Templot2 you can easily adjust the check rails to do that on the templates -- real > adjust check rails... menu item.

(You can set them in 091c, but it's a bit tedious.)

In Templot2 you can also use a gaunt turnout as the base template for the middle crossing, which makes it much easier to align and adjust. More about this at:

 topic 1487

regards,

Martin.

posted: 8 Jan 2013 18:58

from:

rammstein2609
 
 

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Hi Martin,

Thanks for the reply. I did download Templot 2 when it became available but haven't played around with it yet. I'll give it another go tonight and play about with the check rails.

Cheers

Martin

posted: 9 Jan 2013 22:09

from:

rammstein2609
 
 

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Hi,

I managed to cheat a bit and exported the drawing as a DXF and fixed the template in Autocad. The good thing about doing it this way is I have managed to mirror the template to produce four different turnouts.

I have attached a PDF with two of them.

Cheers

Martin
Attachment: attach_1556_2134_2fs_tandem.pdf     404
Last edited on 9 Jan 2013 22:10 by rammstein2609
posted: 9 Jan 2013 22:31

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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rammstein2609 wrote:
I managed to cheat a bit and exported the drawing as a DXF and fixed the template in Autocad. The good thing about doing it this way is I have managed to mirror the template to produce four different turnouts.
Hi Martin,

Fine if that's what you want. :)

But you can do all of that directly in Templot with a few clicks. And then print the templates more neatly than CAD and accurately to size, without any fuss:

group > duplicate group

group > shift group by...

group > mirror group on X at notch

menu items and others.

regards,

Martin.



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