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... of layout you are building, your space available, track radii, etc. But generally, if you base your designs on prototype practice rather than RTR set-track, you will be able to get more in the available space, and use easier radii, etc. For example, unless you will be using extremely sharp unrealistic curves, the 114.3mm Lenz track spacing is much greater than needed and will waste a lot of space for crossovers, etc. Likewise the 11.25 degree crossing angle (1 :5) is much shorter than is sensible for running lines, producing massive end-swings on rolling stock, etc. I know that German prototype track makes a lot of use of 1:7 and 1:9 crossing angles. By ignoring RTR model set-track dimensions and building to prototype designs you can create track formations such as this: 2_010015_090000000.jpg thanks to Russell Davies which could never be created from RTR set-track. Unfortunately, despite much Googling, I haven't been able to find prototype drawings of German turnouts showing the double timbering ...
... you go through and change each of the switches (Template> Switch options) and change them to "9 foot straight heel switches". Also, change the crossings from "regular" to "Generic". You will see a very significant change in the minimum radius! Hope that helps for now, Good Luck, Howard. posted: 1 Apr 2011 11:23 from: dajt OK, thanks. I'm having another go using those settings for the points. The different switch setting does seem to make the point shorter, then the V setting extends it again, but it still seems shorter than the original. When you say "sharp minimum radii", wouldn't that mean an efficient use of space if the stock can get around it? I'm a bit confused there. Regards, David. posted: 2 Apr 2011 00:22 from: Nigel Brown David The radii Howard refers to are the internal radii within the turnouts; these depend on the geometry chosen for the turnouts (switch, crossing types etc), and don't affect ...
... on simple rolling tests. 7mm scale by the way. Now for the question- until now I did not notice the small mark near the blade tips. I pivoted the blade on the mark closer to the frog/vee. Of course at times I get a quite long moving blade. Prototypically they look OK for me, as I'm trying to simulate simple trackwork as used by the Colonel Stephens.... what is the mark closer to the blade tips- should that be the pivot point? (giving me shorter moving blades?) In which case what does the one closer to the vee signify? Any comments or illumination tracking or pointing me in the right direction would be most helpful Thank you Robert posted: 14 Sep 2008 21:34 from: Martin Wynne Robert Kosmider wrote: When one prints up a template there are little cross marks/ dashes across each point blade. One is near the frog/vee end say 1/3 along, and another toward the point blade tip, say another 1/3 along. ...
... to be a GWR old-type switch. For a country branch terminus, it's likely that it was still the same when the branch closed in the 1950s/60s. If the turnout is alongside the platform, the most likely prototype would be a GWR 14ft switch+ 1:8, or longer. Otherwise the overhang of locos using it needs a big cut-out in the platform edge. Unless the branch never saw anything longer than small tank engines. If the turnout is beyond the platform, it might be shorter, perhaps a GWR 12ft switch+ 1:7. However, if you are short of space you might be forced to use something even shorter, perhaps a GWR 10ft switch+ 1:6. The 9ft switches were generally found only in sidings, not running lines. template> switch settings... menu item> GWR old-type cheers, Martin. posted: 10 Mar 2019 13:58 from: David Many thx Martin Very interesting, its a matter thats bugged me for quite a while. ...
... dimensions down to far. From what I observed, by taking 'MS wing-rail reach length (full size)' down, it reduces the flange way gap length of the wing rail pro rata, so there must be a lower limit to how much length is required (a minimum) to assist the wheels& wheel flanges through the crossing vee. By reducing the 'Flared length on wing& check rail ends (f -s)' down in size, this made the flared (bent) part of the rail shorter, again pro rata, so there must be a lower limit to how much length is required (a minimum) to the 'funnelling' effect of the flare to guide the wheel flanges to the crossing vee. It would be of great help to know these details when I, and perhaps others, come up against similar re-adjustment problems in the future. Many thanks again Martin for your help. All the best, Brian Nicholls. posted: 25 Apr 2011 22:00 from: Martin Wynne Hi Brian, ...
... rail wears, overlapping wheels do not strike and dislodge the check rail. The wider than scale flangeways in 00 and EM just make matters worse. But fortunately differential rail wear is one factor we don't need to worry about in models. There are three options -- shorten the check rails, or flatten the slip curve away from them (or both), or alternatively change to a switch-diamond (movable K-crossings). The latter would look odd and non-prototypical on slips of 1:8 or shorter, but may be the best option in a fiddle yard. Flattening the switch curve is done by using shorter switches in the slip, i.e. for the 1:7 slip use the slip switch intended for 1:6 slip, for the 1:8 slip use the slip switch intended for 1:6 or 1:7 slip (which will require shortening the 1:8 V-crossing check rails). The 1:6 slip switches are 1:24 deflection (equivalent to an A switch) ...
... used by in-service passenger trains -- except at very low speeds, such as at the approach to terminal platforms. Longer switches than "C" are used where space permits to allow increased line speeds. For each size of switch there is a "natural" crossing angle, which is more often used in each case than other crossing angles: A-7 B-8 C-10 D-12 E-16 But for models there often isn't space for these, so the intention then is to use shorter turnouts, in sizes which can look the part. For example a B-6 is not common on the prototype but is popular in models as the shortest turnout which can be used in running lines and still look reasonable. To match specified radii: Set your track gauge and scale. Curve your turnout to the required main-road radius (F6 mouse action). Adjust the turnout size (F5 mouse action) until your required turnout-road radius shows in the info panel as the smallest radius. 4railsman wrote ...
... reverse curves: 2_292139_340000000.png Here I have used Templot's make transition function to create a sweeping S-curve transition between your curves at A and B. You can see what I meant by a less geometric and more flowing design. Now we can create another transition for the other running line, and start inserting the pointwork into the curves: 2_292143_000000000.png I changed some of your turnouts to C-10 size. That is always a good size to use if you have room for them when creating curved pointwork, allowing easier radii than shorter curved turnouts. This is the result: 2_292145_330000000.png You can see that this has a more prototypical flow to it in the yellow tracks than your original unmodified blue tracks at the top. Here is the same section when printed out for construction: 2_292148_520000000.png regards, Martin. posted: 1 Jan 2017 11:25 from: drrsenior Hi Martin, Thank you for spending more time on this for me. Your amendments to those couple of running lines really demonstrate how smooth and flowing it can be so I now know what to ...
... turnouts without sleepering, and done the other tasks to make them into slip roads. Logically that would imply to me that the switch for the 1:9 crossing goes actually adjacent to the 1:7 crossing- is that correct? And vice versa, the switch for the 1:7 crossing goes adjacent to the 1:9 crossing. Or is it the other way round? I have printed out the template and it looks perfectly OK to me, but it may not be correct, I've ended up putting the shorter switch by the 1:7 crossing. Last edited on 23 Jun 2020 11:52 by Julian Roberts posted: 23 Jun 2020 12:30 from: Martin Wynne Hi Julian, The slip switches provided in Templot are intended to be used adjacent to V-crossings of similar angle. In each case the switch front length has been adjusted to ensure adequate clearance for the moving switch blades between the wing rail fronts, when pegged onto the TCP and MCP positions. They are merely suggestions of course. You can use ...
... range of curved switches: 2_311944_200000000.png Although the one with a 10ft switch is a fraction longer and smaller radius, I think I would prefer it for the easier deflection angle of the longer 10ft switch. But neither of them are going to look very good in a running line. Short 1:5 turnouts are normally found only in yards and sidings. How much space do you have for something longer? If you have several turnouts in succession can you merge two of them into a tandem? Running line turnouts are not usually shorter than about 1:7.5 Changing to a regular V-crossing will shorten the length and reduce the radius from a generic V-crossing of the same angle. But it may then allow a flatter V-crossing angle in the same length as before. Which will be generally helpful for a crossover, especially for long bogie vehicles. What this boils down to is that we can't answer the question without more information about the space available and traffic using these crossovers. regards, Martin. posted: posted: 3 Feb ...
... file- it's only that one corner which needs modification, there is space for the other three legs to spare. Somehow the diamond templates got erased when I moved the template for printing, so I have recreated them but need to tweak the check rails. Thanks for the tip on the gallery. Attachment: attach_3085_3696_outsideslip_2020 _06_12_1345_58.box 80 Last edited on 12 Jun 2020 13:53 by William Williamson posted: 12 Jun 2020 14:41 from: Martin Wynne Hi William, Thanks for the file. I've got it quite a bit shorter than the other side by using 1:24 model switches and letting the V-crossings get as close as possible. It will be tricky to build them though: 2_120940_260000000.png File attached below. cheers, Martin. Attachment: attach_3086_3696_william_outside_s lip.box 77 posted: 17 Jun 2020 23:35 from: roythebus Seems to be getting to the stage mentioned on the RMweb with the German style Baesler double slip. Difficult to build. Maybe William would be better off building the whole thing himself from Templot, it may be easier. ...
... -clad sleepers, which of course would have to be slid into position, and there may need to be more than one on a sleeper! (I'm joking, I think!) The dropper connection markers really would be useful though. Cheers, Paul Last edited on 28 Jun 2020 14:59 by Paul Boyd posted: 7 Jul 2020 13:17 from: Martin Wynne Hi Paul, These 4 check rail marker labels now remain visible for clicking if the turnout is shortened: 2_070805_010000000.png But not if the turnout is shorter than the V-crossing (they would be daft and annoying on a set of catch points). Note that although the labels are visible for clicking, the check rails are not visible. They are still constrained by the overall length, which must be extended to contain them if required. This is a necessary requirement for working with partial templates (and a can of worms to change). In version 227a shortly. Thanks again for reporting this. cheers, Martin. Parts of Templot Club may not function unless ...
... make this function properly. the T3's and my great grandfathers loco (6300 series)could use this?, i am afraid it would be to small. Outside this "storage shed" you can see the "idea" that i would like to build. Those are the 4 "main lines" for the big ones, they run only on the outside of my garden. The box file is JUST A impression of what i am building, some pieces of strait track can be one(1) meter longer or shorter, curves are what i am going to build in radii! For all: i hope (now)you understand my fuss about frog making, but clearly i over complicate the frog? Results of the new type of frog will be posted.(hopefully tomorrow by this time) Thanks for all your ideas comments patience and replays. Attachment: attach_3110_3708_try7.box 56 posted: 3 Jul 2020 19:22 from: Igor Kurgan Phil O wrote: Igor, The only way I could weld aluminium was with a TIG, tungsten ...
... . where R=radius in outer rail, W=amount of widening, L=distance between legs. Putting some numbers in that, say you want the gauge to increase by 0.25mm (prototype max at 4mm/ft) at 750mm radius (outer rail): L= SQ ROOT of( 8 x 750 x 0.25)= SQ ROOT of 1500= 38.7mm. So that needs say 39mm between the gauge legs. If you wanted the full widening to apply only when down to 500mm radius, the length is shorter: L= SQ ROOT of( 8 x 500 x 0.25)= SQ ROOT of 1000= 31.6mm. No need for A-level, O-level will do. The track gauge doesn't come into it. Just consider an arc through the outer legs: From Pythagoras: R^2= (R -W )^ 2+ (L /2 )^ 2 From which L/2= SQ ROOT of (2RW-W ^2). W^2 is very small in relation to ...
95. Outside slip
... at times. Jim. posted: 3 Oct 2016 13:06 from: Martin Wynne Hi John, As Jim says, outside slips can involve a bit of fiddling about, especially if starting from a CJF or Iain Rice plan. Also in his books Iain incorrectly refers to a half-scissors as an "outside slip", so it may not be entirely clear what he intended. Yes, start with the diamond-crossing. For an outside slip it will be a short one, typically 1:6 or shorter. Insert a turnout in the main road of one half-diamond and in the branch track of the other one. Probably you would want it to have a B-switch for a 1:5 outside slip, or a C-switch for a 1:6 outside slip. The V-crossing angle for the turnout doesn't matter at this stage. do> snap to switch heel on each of them, and then snake them forward into position. Some trial an error may be needed, but a rule ...
... be done by creating an irregular diamond-crossing. Use tools> make branch track on the turnout, and then change it to straight. You can then do peg/align tools> make diamond-crossing at intersection, and add the slip roads in the usual way. If the outer curve is within a transition zone at that location, it gets a bit more involved, but there is a video showing how to proceed, click help> watch a video> Scruff Video Andrew transition diamond. If you want a shorter diamond, change the turnout to a curviform pattern V-crossing before you start. Depending on your ruling radius, that may be preferable anyway. regards, Martin. posted: 9 Aug 2016 09:18 from: mightbe Hi Martin, I suppose I want the road running across the diamond to be straight. I take it that the 'make branch' function takes its radius cue (on regular crossings) from the radius of the diverging route at the V. If the main road is straight, the branch track ...
... files is clearly the worst of the bunch, but there are several other reader programs for PDF files which do a much better job. However, such arguments are a bit of a distraction here and not getting Templot any further forward. regards, Martin. posted: 27 May 2016 21:13 from: Martin Wynne I have now added the first video clip to the Templot Explained tutorial, see: http://templot.com/companion/4_where_do_i_start.php I'm intending to add a lot more similar short videos. I think the shorter videos within text and static screenshots is probably the better way to go. With the recent changes to the EXE format this can now all be done from within Templot without all the different browser hassles. But we still need the mobile version for those who want to access it on tablets and smartphones. Trying to do everything within the video as I originally intended makes a large unwieldy video file which takes too long to run (and many days work to prepare). As for example the single slip video. As always ...
... I remember seeing track joints like the ones you describe Alan, in Belgium in the late 70s when I worked there for a year. I thought it looked a much better design than we used to have in Britain and wonder why it wasn't the way we did things here. Hi Julian, Some pre-grouping track used very close joint sleepers. The problem then with chaired bullhead track is that if you place the chairs so close to the joint, there isn't room between them for a 4-bolt fishplate, and shorter 2-bolt fishplates must be used. Experience was that 4-bolt fishplates are so much better at keeping the rails aligned and level that the joints required less maintenance, even with the joint sleepers further apart. Wider joint chairs are used on the end sleepers, so that the rail is supported as close to the joint as possible. (4mm joint chairs are now available from C&L.) Flat-bottom track is different, in that fishplates can be fitted over some types of rail fixings, rather ...
... ? I've started to build, so it's now too late to change, I'm just interested in your thoughts. posted: 17 Aug 2020 14:39 from: Martin Wynne ikcdab wrote: The inspector quotes the turnouts as being "1 in 16 with 30ft switches". I take this to be a F switch. Hi Ian, No, it's a GWR 30ft straight switch: 2_170910_250000000.png The GWR had only 3 flexible switches, B, C and D, introduced for new work from 1930. For the other sizes, shorter and longer, they continued to use their older designs. There is no "normal" crossing angle, everything depends on the site, the traffic, and the line speed. If there is any curving it always means a longer crossing to avoid a severe speed restriction over the diverging turnout road. 1:10 is fine for a station throat or branch terminus area, but maybe a bit short for a running loop or crossover out in the country. On the other hand 1:16 seems generous, unless the ...
... practice it is not so simple. I'm recording them in 15-minute clips to keep file sizes within reason (each one is around 100MB). Last night's session was over 4 hours, so I now have 17 such clips. To edit and combine them, removing interruptions and breaks (and also my various mistakes and mis-clicks) would be a day's work. And take ages to upload and use up large chunks of server memory. Perhaps they could go on YouTube. It might be possible to compile a shorter "best bits" version. Thanks again for watching, Martin. posted: 28 Sep 2020 21:20 from: Martin Wynne Martin Wynne wrote: I am keeping a recording of each session, so in theory they could be posted after the event to make them permanently available. In practice it is not so simple. I'm recording them in 15-minute clips to keep file sizes within reason (each one is around 100MB). Last night's session was over 4 hours, so I now have 17 such clips ...
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