click here for a list of all existing Templot documentation
Important Privacy Information cookie information pre-print options:    

click image to open Templot Club in a new tab
Templot club top logo
looking for Templot? - (free)



 you are not logged in  - Login | Join


receive all messages by email: info


Recent Topics
Front Page  Search  Image Gallery  Gallery Upload  My Account  Members  Help  
make a donation  
please click: important information for new members and first-time visitors Templot Companion - User Guide
            messages archive on Yahoo
page trail:  Templot Club > Forums > Templot talk > S curve construction
Templot web site

                                       S curve construction
     
 Start new topic   Reply blank   Printer friendly 
  Rate this topic  
AuthorMessage
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
1st message | this message only posted: 18 May 2013 14:21
 PM  Reply with quote  Reply blank 
from:
pointo1d
United Kingdom

 

view images in gallery
view images as slides
Hiya Martin ,
Following my last post (concerning the NSR pre-1914 Leek station), I've come to the conclusion that adopting something somewhat simpler would allow me to get things running considerably earlier - to that end, I've been reading up on the NSR Newcastle (under Lyme) station. However, I only seem to be able to implement the S curve at the down end (see here for a photographic idea of the track bed just after the track was lifted) as a number of individual templates. My question is, am I missing something ? Is Templot able to construct such a configuration as one, or possibly two, transition curve(s). ?
Attached is a partial scan of the Alan Godfrey produced reproduction plan of 1898 (sheet 17.04).
TIA & best rgds ,Dave P
__________
message ref: 14786
Attachment: Newcastle.png (Downloaded 117 times)
 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
2nd message | this message only posted: 18 May 2013 16:28
 PM  Reply with quote  Reply blank 
from:
Martin Wynne
West Of The Severn, United Kingdom



view images in gallery
view images as slides

Please do not send requests for help direct to me via email or PM.

Post your questions on the forum where everyone can see them and add helpful replies.
Hi Dave,

The usual way to align an S-curve to a map is to align two temporary dummy templates some way apart (see: http://templot.com/companion/swell_function_ctrl_f10.php ), and then to use the make transition function to link them (see: http://templot.com/companion/link_existing.php ).

However, I can't see an S-curve on the map which you uploaded? :?

You also linked to this video:



If you mean the short reverse curve at the end of the platforms shown in the video, I think the slewing functions would be the best way to do that.

regards,

Martin.

__________
message ref: 14787

 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
3rd message | this message only posted: 19 May 2013 11:00
 PM  Reply with quote  Reply blank 
from:
pointo1d
United Kingdom

 

view images in gallery
view images as slides
Hi Martin ,

TFT - in retrospect, I think that, as you noticed, my command of the terminology is somewhat lacking. It was actually the dog-leg/reverse curve to which I should have alluded.

Apologies for the video link, it only appears as a photo when I visited the site using Chrome - but three of the videos thereon are really most interesting, so thanx for that as well :thumb::thumb:

Best rgds ,
Dave P
__________
message ref: 14788

 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
4th message | this message only posted: 8 Aug 2013 17:59
 PM  Reply with quote  Reply blank 
from:
pointo1d
United Kingdom

 

view images in gallery
view images as slides
Hi again Martin ,
I've managed to get what I think is a reasonable representation of the station (see attached box file), but I'm struggling with constructing the single slip at the down end of the platform roads. I've looked and looked at your demo video but can't seem to get the 'convert half diamond to turnout' to construct a decent turnout for the later 'make slip road' operation - the only difference, that I can see, between my attempts and your video is that your video is mandraulically constructed whereas the crossover in my attempts was auto-constructed as a ladder crossover - resulting in a 1:12 slip.
TIA & best rgds ,
Dave P

__________
message ref: 15210
Attachment: Newcastle_NSR.box (Downloaded 91 times)
 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
5th message | this message only posted: 9 Aug 2013 10:23
 PM  Reply with quote  Reply blank 
from:
Martin Wynne
West Of The Severn, United Kingdom



view images in gallery
view images as slides

Please do not send requests for help direct to me via email or PM.

Post your questions on the forum where everyone can see them and add helpful replies.
Hi Dave,

Thanks for posting your file. :)

A few pointers:

1. The Down Loop is too close to the running lines. Where a loop or siding is adjacent to a running line, the rules require the track spacing to be increased by 4ft to 10ft way instead of 6ft way. In 2mm scale you need to increase the spacing by 8mm for 4ft scale. You can do that by mental arithmetic, or simply by entering #8 in the data-entry dialog. Here's a bit of Jing video showing that (in 4mm scale):

 http://screencast.com/t/u98lh6UQzbQ

It may take a few seconds to download before it will play.

2. You have made much use of C-6 turnouts. That's a very unusual non-standard size. I suggest changing them to B-7 which will not take up any more space and have a much easier radius. It will also mean that the slip will be 1:7 instead of 1:6. That's a much better size for a slip in running lines -- 1:6 slips have a very sharp radius and are normally found only in yards.

3. Several of your templates are showing slewing zone markers beyond the template boundary, to no effect. To avoid confusion it would be better to cancel slewing on those templates (geometry > slew (nudge) > cancel slew menu item).

regards,

Martin.

__________
message ref: 15211

 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
6th message | this message only posted: 10 Aug 2013 19:48
 PM  Reply with quote  Reply blank 
from:
pointo1d
United Kingdom

 

view images in gallery
view images as slides
TFT Martin ,
As, I hope, you will see from the image, also now attached, my attempt (as previously attached) was based on a scan of the station area as included on a 1:4340 (approx.) map published by [url=https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CDEQFjAA&url=http%3A%2F%2Fhttp://www.alangodfreymaps.co.uk%2F&ei=UZYGUpOJDsLMOKWOgfgO&usg=AFQjCNFFgnZXh4VkW9xh6Sfp7Rw5S0-_bQ&sig2=0JXKK13WRAn0oIuQpKYN8w&bvm=bv.50500085,d.ZWU]Alan Godfrey[/url], hence the points and adjacent loop/siding main line distance. As to the apparently redundant slewing zones, they came about, I believe, as a result of getting the slewing close enough, then copying the slewed mainline track to the control template, then inserting and appropriately positioning, a turnout in the control template.
Best rgds ,Dave P
__________
message ref: 15218
Attachment: Newcastle_1.png (Downloaded 83 times)
 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
7th message | this message only posted: 11 Aug 2013 12:21
 PM  Reply with quote  Reply blank 
from:
R C Lake
 

 

view images in gallery
view images as slides
Relying too closely on the map may not be the best idea. Whilst buildings and other "solid" features may be reasonably accurate, I have found a number of serious errors and omissions in various maps, when it comes to trackwork. I doubt if surveyors intended to achieve any more than a very rough representation of track details - except perhaps on very large scale maps like 1:500, where you sometimes even see point levers and other details recorded.
__________
message ref: 15221

 
 Clicked a link? Wrong message? Wait until the page has finished loading, click in the address bar and then press the Enter key. This is a timing bug in some browsers.
8th message | this message only posted: 27 Apr 2018 13:43
 PM  Reply with quote  Reply blank 
from:
pointo1d
United Kingdom

 

view images in gallery
view images as slides
... and now for my latest attempt (using an improved scan from "Newcastle Under Lyme - It's Canals & Railways", Baker & Fell) - made far easier by the newly added functionalities. All (I think) I have to do now, is to correct the point timbering but, as ever, I'm always open to suggestions...

Best rgds,
Dave P

__________
message ref: 24515
Attachment: newcastle_2018_04_17_1935_45.box (Downloaded 39 times)
 
This is topic ID = 2221     Page created at 05:12 (local time)  
You can type a quick reply to this topic here.

Click in the box to begin.


But to reply to an individual message, or to include images, attachments and formatted text, use the reply buttons on each message above.

To start a new topic in this forum, click the Start new topic button below.
To start a new topic in a different forum, click the Forum Jump drop-down list below.

             Start new topic 

 click to jump to a different forum:     Back to top of page

Templot Club > Forums > Templot talk > S curve construction
about Templot Club

list recently active topics Templot Companion - User Guide - A-Z Index Old Templot Companion Please click: important information for new members and first-time visitors.
indexing link for search engines only

back to top of page


Please read this important note about copyright: Unless stated otherwise, all the files submitted to this web site are copyright and the property of the respective contributor. You are welcome to use them for your own personal non-commercial purposes, and in your messages on this web site. If you want to publish any of this material elsewhere or use it commercially, you must first obtain the owner's permission to do so.

The small print: All material submitted to this web site is the responsibility of the respective contributor. By submitting material to this web site you acknowledge that you accept full responsibility for the material submitted. The owner of this web site is not responsible for any content displayed here other than his own contributions. The owner of this web site may edit, modify or remove any content at any time without giving notice or reason.
Problems with this web site? Contact webmaster@templot.com.   This web site uses cookies: click for information.  
© 2018  

Powered by UltraBB - © 2009 Data 1 Systems