Flat Bottom Turnout Info

[AndyID]

I'm trying to produce some 3-D models of the components used in flat bottom turnouts for 3-D printing but I'm not having a lot of luck finding drawings and images of the base-plates, particularly for the crossings. I know there are a great variety of them but I'd be most appreciative if anyone can point me at some good references/photos or post anything relevant in this thread.

 

I'm working on a PAN 11 base at the moment and guessing a bit about some of the dimensions. I'll post the editable 3-D DXF model file here when I'm reasonably happy with it.

[96701]

Is there anything in here?

https://www.scribd.com/document/189257676/Track-Design-Handbook

[Chris Turnbull]

Here's a couple of pages from the Permanent Way Institution's "British Railway Track" which you may find of use.  This is the sixth edition so may be a bit out-of-date, the seventh is now available.

 

Turnout baseplates.pdf

 

You don't say what scale you are modelling in but I have made modern turnouts cutting Peco components to size.  Here's an example in 7mm scale.  As always, observation of the prototype is recommended.

 

 

Chris Turnbull   

[AndyID]

1 hour ago, 96701 said:

Is there anything in here?

https://www.scribd.com/document/189257676/Track-Design-Handbook

 

Thanks Phil. I think it's a likely bit too general. I'm just looking for dimension details for baseplates, check rails attachment etc.

 

Andy

[AndyID]

52 minutes ago, Chris Turnbull said:

Here's a couple of pages from the Permanent Way Institution's "British Railway Track" which you may find of use.  This is the sixth edition so may be a bit out-of-date, the seventh is now available.

 

Turnout baseplates.pdf 1.26 MB · 2 downloads

 

You don't say what scale you are modelling in but I have made modern turnouts cutting Peco components to size.  Here's an example in 7mm scale.  As always, observation of the prototype is recommended.

 

 

Chris Turnbull   

 

Hi Chris,

 

Thanks for that. The vintage isn't a problem. Older is probably better. I model in 00 but the CAD models will be drawn full-size so they can be reduced to any model scale by anyone who wants to use them.

 

I'd like to take photos of the prototype but that's a bit difficult as I'm 4,500 miles away

 

Andy

[Grovenor]

Some photos here.

http://www.norgrove.me.uk/resources/track.htm

 

Some dimensioned drawings of baseplates in the FB section near the bottom of this list.

http://www.norgrove.me.uk/permanent_way_notes.htm

Edited July 20, 2021 by Grovenor

[AndyID]

10 hours ago, Grovenor said:

Some photos here.

http://www.norgrove.me.uk/resources/track.htm

 

Some dimensioned drawings of baseplates in the FB section near the bottom of this list.

http://www.norgrove.me.uk/permanent_way_notes.htm

 

Many thanks Keith.

[AndyID]

I think I finally understand why Pandrol clips don't fall out

[Trog]

10 hours ago, AndyID said:

 

Many thanks Keith.

 

Note that the list given is rather old school and the details are for the original inclined rail FB layouts. From I think the late 1960's BR moved to a set of designs where the rails were held vertically, as this reduced the number of different baseplates required in the crossing area. Vertical S&C sits on larger squarer four screw baseplates usually referred to as V baseplates as they all have the letter V in their identifying number.  As opposed to the earlier inclined designs where the single rail baseplates were the same or nearly the same as those used in plainline.

[AndyID]

Many thanks for all the help.

 

I've made a little progress and rather than clutter up this thread with model stuff I've posted an update in Printed Track and Points.

 

https://www.rmweb.co.uk/community/index.php?/topic/139267-printed-track-and-points/page/2/&tab=comments#comment-4513712

 

[Trog]

On 20/07/2021 at 10:29, Grovenor said:

Some photos here.

http://www.norgrove.me.uk/resources/track.htm

 

Have been meaning to mention that the AS2 chair is for use with 85lb BH rail for years.

 

DM.