Templot Club Archive 2007-2020
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posted: 6 Apr 2009 19:31 from: jeckardt
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Okay, I admit it... I'm confused... I thought I finally had my head around how to specify the turnout that I wanted, but obviously not.. I have a curved geometry turnout. "Switch radius in FS inches" is set to 1150". I'd be happy to provide any additional parameters that I used that are necessary to answer this question. The resulting template ends up with: switch radius (rail gauge-face) = 1437.5 trunout radius (rail gauge-face) = 1517.73 [For the record, I have refered to your online docs and do understand what the above two radii correspond to.] What happened to the 1150? Was it ignored? Overridden due to my other parameters specified? What did I do wrong? Thanks, Joe |
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posted: 6 Apr 2009 20:02 from: Martin Wynne
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jeckardt wrote: I have a curved geometry turnout. "Switch radius in FS inches" is set to 1150". I'd be happy to provide any additional parameters that I used that are necessary to answer this question. Hi Joe, FS means "Full-Size", i.e. the prototype dimension in inches. If you click the ? help F2 flag below the entry field when entering a dimension, Templot usually explains this. The resultant data in the information panel is in millimetres on the model. I guess you are modelling at 15mm/ft? 1150 inches prototype = 95.83 ft. 95.83 ft x 15mm/ft = 1437.5 mm. The general convention in Templot is that prototype data is in inches, and model data is in mm, corresponding to the way the usual UK modelling scales are defined. If you select your custom switch in the switch dialog panel and then click the show switch info button, Templot will show model and prototype dimensions alongside. regards, Martin. |
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posted: 6 Apr 2009 20:17 from: jeckardt
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Okay, I'm seriously embarrassed... hadn't even considered that the templot parameters were being quoted in mm. (The magnitude of the templot radius was somewhat close to the requested fs radii so I jumped to the erroneous conclusion that the units were the same and the value got modified somehow. This was compounded by the fact that the Templot generated template has a much tighter radius than the reference turnout drawing that I'm trying to match. Clearly the reference turnout drawing isn't what I believe it to be.) So everything matches within Templot. Thanks for setting me straight. Joe |
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posted: 6 Apr 2009 20:45 from: Martin Wynne
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jeckardt wrote: Okay, I'm seriously embarrassed... hadn't even considered that the templot parameters were being quoted in mm.Hi Joe, No need to be embarrassed.  The UK mix of metric and imperial dimensions must look very confusing from the US.There are not too many Templot users in 15mm/ft scale (1:20.3). Is that narrow-gauge, the switch radius is very sharp for standard gauge? regards, Martin. |
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posted: 6 Apr 2009 22:08 from: jeckardt
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Martin Wynne wrote: There are not too many Templot users in 15mm/ft scale (1:20.3). Is that narrow-gauge, the switch radius is very sharp for standard gauge? Yes, it's what we call "Fn3" (i.e., 3-foot narrow gauge on 45mm track, 1:20.3 (15mm/ft) scale). In my case, all of the turnouts will be stub switches. (Martin, you have already given me some pointers in a previous thread on how to simulate that in Templot.) Thank you, Joe |
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| Last edited on 6 Apr 2009 22:10 by jeckardt |
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