Templot Club Archive 2007-2020                             

topic: 3426Switch blade tip for joggled stock rail
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posted: 6 May 2019 14:51

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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I have just prepared this diagram in response to a question on the S4Soc forum. It may be of interest here:

2_060815_440000000.png2_060815_440000000.png

The diagram shows how a model blade tip can be prepared to fit into the joggle and align the running edge with the unjoggled part of the rail.

The extreme end of the blade is then rounded off to match the top corner radius on the stock rail.

A typical joggle is 3/8" deep. The 9/16" dimension below the rail top is the gauging line, i.e. the position on the rail where the track gauge is measured.

The diagram shows vertical rail. If you use inclined rail the dimensions remain the same.

More info about all this on the real track page, which I have updated with this diagram:

 http://templot.com/companion/real_track.php

cheers,

Martin.

posted: 11 May 2019 11:50

from:

Andrew Duncan
 
Reigate - United Kingdom

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Hello Martin

Thanks for this its very clear what needs to be done which, whilst I think I've broadly followed in the switches I've already built, I don't think I completely understood why I was rounding it off. This diagram makes it very clear.

Kind regards
Andrew
PS what was the name of the thread on the Scalefour site


posted: 11 May 2019 12:30

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Andrew Duncan wrote:
PS what was the name of the thread on the Scalefour site
Hi Andrew,

See:

  http://www.scalefour.org/forum/viewtopic.php?p=67415#p67415

It's frustrating that there is no common web site for all this stuff. The same info, with variations, gets spread across Templot Club, S4Soc, RMweb, Western Thunder, and several others.

cheers,

Martin.



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