Templot Club Archive 2007-2020                             

topic: 2249Diamond crossing construction
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posted: 3 Jul 2013 10:47

from:

LSWRArt
 
Antibes - France

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On a diamond crossing, I am not sure what you call the piece of running rail with one end filed to an point between the K-rail and the check rail?

More importantly, how do I make one?  On the few pictures I can find it looks as if many modellers have left the rail  straight and just filed the tip off at an angle.  I cannot find any pictures of the real K-crossing crossing pre-grouping or even in the early days of grouping.

But I would have thought that if you make the rail head like this, it will mean that the rail head is not supported at the tip by the rail web?  So should these rails be made in the same way as a V-crossing point rail?   i.e. bend 10mm (in 0 gauge) towards the running face, file railhead only on the running side to make the running surface straight again; and then file the crossing angle on the non-running side to match the K-angle?

Should the end be rounded to 3/4" (?) radius  as at the common crossing tip?

Thanks for your help and advice,
Arthur

posted: 3 Jul 2013 10:56

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Hi Arthur,

It's called a K-crossing point rail.

Make it the same way as for the V-crossing point rail.

If you use filing jigs, here is the intended way of using them to ensure solid metal at the tip:

http://www.rmweb.co.uk/community/index.php?/topic/55974-emg-society-crossing-and-switch-jigs/#entry682447

Note that for K-crossings, the point rail is blunted off to 5/8" scale width instead of 3/4" blunt nose for V-crossings.

regards,

Martin.

posted: 3 Jul 2013 12:42

from:

LSWRArt
 
Antibes - France

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Martin,
Thanks for the very quick response.
Now I can get back to the filing this afternoon.
Best wishes
Arthur



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