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    Some pages of this and other topics include contributions from members who are creating and posting their own CAD designs for 3D printing and laser-cutting. Do not confuse them with Templot's own exported CAD files. All files derived from Templot are © Martin Wynne.
  • The Plug Track functions are experimental and still being developed.

    For an updated overview of this project see this topic.   For some practical modelling aspects of using Plug Track see Building 3D Track.

    The assumption is that you have your own machines on which to experiment, or helpful friends with machines. Please do not send Templot files to commercial laser cutting or 3D printing firms while this project is still experimental, because the results are unpredictable and possibly wasteful.

    Some pages of this and other topics include contributions from members who are creating and posting their own CAD designs for 3D printing and laser-cutting. Do not confuse them with Templot's own exported CAD files. All files derived from Templot are © Martin Wynne.

Timber Shoving - 1

Quick reply >

bordercollie

Member
Location
Australia
Hi
I have just spent about two hours composing a post which has just disappeared

To cut to the chase I have the two adjacent turnouts as shown on the attachment. I have done some playing around with timber shoving, However, I don't know how to proceed with getting a realistic arrangement of timbers and plain track sleepers. As I am interested in GWR c1929. I want to remain with straight on timbering if possible.

Best wishes
Graham
 

Attachments

  • Staion Throat 25.4.21.mecbox
    106.4 KB · Views: 204
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message ref: 1276
Hi Graham,

I think it's likely that the switch front timbers on the second turnout would be long timbers. The sleepers can then be closed up and skewed a bit to fit between the switch timbers:

graham_shoving.png


As I am interested in GWR c1929. I want to remain with straight on timbering if possible.

The style of timbering is mostly determined by the traffic over each route, rather than the company or date.

p.s. I notice that the first turnout has a regular V-crossing. I think it is more likely to be generic if you are following GWR designs exactly.

cheers,

Martin.
 
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message ref: 1277
Hi Martin
I will change the V-crossing as you suggested.
I wasn't sure if it was alright to angle sleepers on the plain track. I will look at what I can do at the exit at the other end onto engine shed road next weekend. I think I can rotate the last two timbers and rotate the plain track timbers in a similar way to that you have shown me at the switch end.
Regards
Graham
 
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message ref: 1285
Hi Martin

I have been having a go at shoving timbers as shown in your post. However, when trying to extend J1 and J2 on TL2155 I find that I can not find a way to extend them towards the plain track i.e. they only extend towards the top of track plan. How can I reverse the direction of the timber extension?

Regards
Graham
 
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message ref: 1381
I have been having a go at shoving timbers as shown in your post. However, when trying to extend J1 and J2 on TL2155 I find that I can not find a way to extend them towards the plain track i.e. they only extend towards the top of track plan. How can I reverse the direction of the timber extension?
@bordercollie

Hi Graham,

1. If using the mouse actions to change the length, first use the throw mouse action to set the lengthened end, and then use the length mouse action.

2. If using the shorten and lengthen buttons, or pressing the S and L keys on the keyboard, or holding the keys down*, hold down the SHIFT key to make the change at the main-side end:

timber_lenghening.png


* this is the easiest and quickest way to make changes.

cheers,

Martin.
 
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message ref: 1383
Hello Martin,

I'll write it in here, as it may also be about pushing wood. If it should be wrong here, I will gladly write it in my topic.....

I am currently in the process of creating a double slip switch, based on the German model, of course. Since the turnouts usually have double sleepers, the sleepers have to be adjusted individually. Now it is so that one sleeper is above the tie bar! Is it possible to move and adjust this, or do I have to solve it by moving the sleepers?

Thanks and greetings

Gregor
 
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message ref: 1515
Now it is so that one sleeper is above the tie bar! Is it possible to move and adjust this, or do I have to solve it by moving the sleepers?
@Gregor

Hi Gregor,

The output from Templot is intended to be a model construction template, not an engineering drawing of the prototype.

As such it doesn't show the stretcher rods, because they vary a lot between prototypes, and not many track builders model them accurately.

What you see is the model drive slot, which is intended to mark the position of the slot to be cut in the baseboard for the model switch drive mechanism.

Sorry, there is no means to change its position, it is always between the toe timber and the next switch timber.

But you can turn it off if not wanted, by unticking this menu item:
no_drive_mark.png


If you wanted to represent the prototype stretcher rod positions, you could do that in the latest 227b version of Templot using the new symbols function:
droppers_rods.png

There I have used "dropper" symbols on an imaginary check rail alongside the switch rails to represent the rods. (They would of course be shorter than shown, with one switch rail open.)

I will write more about this new symbols function shortly:

symbols.png


cheers,

Martin.
 
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message ref: 1522
Hi
I have queries about a modification of the plan #2.
First is it allowable to twist timbers in the switch, If so would it be possible to extend the timbers as shown on the attached file? This would mean less interlacing of timbers/sleepers which I believe GWR didn't like.
NB This a very quick attempt as I don't want proceed to far before I know if it's appropriate.
Regards
Graham
 

Attachments

  • group_2021_06_13_1928_24.box
    30.4 KB · Views: 169
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message ref: 1747
is it allowable to twist timbers in the switch,
@bordercollie

Hi Graham,

The golden rule is that the special switch and crossing chairs cannot be moved from their designated positions on the rails. They will fit the rails in only one position. The exception to this would be the first few slide chairs, but since moving them requires drilling the stock rail for a new bolt position, and interfering with the stretcher bar fittings, it would be unlikely.

However, the chairs are narrower than the timber, so there is some scope for shoving the timber aong under the chairs and/or skewing it a fraction:

skewed_switch_timber.png


Notice that the chairs haven't moved. They are still in the same position on the rails. And they must have some timber support under them. But the timber can be skewed a little if absolutely essential to fit a timbering layout.

Not very likely in a fast running line, because skewed timbers do not resist gauge-spread. But in a yard or sidings anything goes, within reason.

cheers,

Martin.
 
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message ref: 1752
Thanks Martin
It seems my suggestion could only be used to a very limited extent and even then it would be unlikely. So interlacing of sleepers would need to used in this situation even by GWR. I have just had a look at the front cover of David Smith. At the bottom right where turnout crosses over the other track I can see some degree of interlacing and this appears to be a reasonably well used location. In any event there doesn't seem to be another solution.
Regards
Graham
 
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message ref: 1759
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