Templot Club Archive 2007-2020
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posted: 20 Aug 2011 08:49 from: Charles Orr
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Hi I would welcome some advice on how to construct a reversing circle. Essentially I have a turnout and need to add a circle of track that leaves the main road and returns to the turnout road. The ability to be able to vary the radius of the base circle would be useful as I have to fit it into the space available. This is probably straightforward  .Thanks in advance Charles |
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posted: 20 Aug 2011 09:45 from: Martin Wynne
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Charles Orr wrote:I would welcome some advice on how to construct a reversing circle.Hi Charles, There is a Templot video covering this: http://www.templot.com/martweb/videos/return_loop.exe It's actually for double track, but if you do tools > make branch track on the turnout you should be able to adapt accordingly. Ask again if you need more. regards, Martin. |
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posted: 20 Aug 2011 10:14 from: Charles Orr
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Hi Martin Many thanks for the pointer. I'll see how I get on after viewing the video. regards CHarles |
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posted: 20 Aug 2011 10:46 from: Charles Orr
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Hi Martin I've got as far as this (not very far) and then things did not proceed as per the video  .I've attached the box file. Help greatly welcomed. regards Charles |
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| Attachment: attach_1143_1591_Reverse_Loop_1.box 274 | |||
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posted: 20 Aug 2011 10:56 from: Charles Orr
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Hi Martin I should have added that the space available is 100cm by 100cm with the turnout in the top left of the space. Scale is OO SF. regards Charles |
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posted: 20 Aug 2011 11:30 from: Martin Wynne
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Charles Orr wrote: I should have added that the space available is 100cm by 100cm with the turnout in the top left of the space. Scale is OO SF.Hi Charles, It is not possible to fit a reverse loop in 1000mm x 1000mm in 00 gauge. Well it is, but the radius is silly -- 280mm (11") radius: 2_200628_320000000.png  regards, Martin. |
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posted: 20 Aug 2011 16:26 from: Charles Orr
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Hi Martin Many thanks for that. I thought that might be the case I can make more space available lengthwise. Can you tell me how you produced the previous formation? That is what I was trying to do and then adjust it until I had a sensible radius. (I have managed to successfully produce the scenic part of the layout  )regards Charles |
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posted: 20 Aug 2011 16:59 from: Martin Wynne
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Charles Orr wrote: I can make more space available lengthwise.Hi Charles, Are you still restricted to 1000mm clear width? In that case the maximum radius which will fit will be about 470mm (18.5") which is still very tight for 00, but just about doable. In 00-SF you will need some gauge-widening (or use 16.5mm flexi-track). If you can increase the width, what is the minimum acceptable radius? regards, Martin. |
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posted: 20 Aug 2011 17:28 from: Charles Orr
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Hi Martin I was intending to use peco code 75 flexitrack for the loop. Minimum acceptable radius would be 24-25 inches but could conceivably be as low as 22inches. regards, Charles |
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posted: 21 Aug 2011 11:21 from: Charles Orr
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Hi Martin I've now constructed a satisfactory reverse loop myself. Many thanks for your help. regards Charles |
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posted: 22 Aug 2011 08:16 from: Martin Wynne
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Charles Orr wrote: I've now constructed a satisfactory reverse loop myself.Hi Charles, I'm glad you solved it. I was intending to make a bit of video for you, but I was overtaken by an urgent domestic plumbing job. regards, Martin. |
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posted: 22 Aug 2011 11:33 from: Charles Orr
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Hi Martin Your picture of the loop made it clear what had to be done. I then constructed loops of different radius and experimented until it fitted with an acceptable radius. The templates are printed and in place. I shall use your veneer pin method to fix the flexitrack Many thanks again. Regards Charles |
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