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121. Sketchboard problem
... the corners dialogue box was showing 90 odd millimetres, which is why I had the problem. Thank you for highlighting the necessary boxes for me to get it right. Thanks Phil posted: 18 Nov 2017 16:09 from: Martin Wynne Hi Phil, In the end I have re-written the rounded rectangles entirely. Nils's original code was unsatisfactory for our purposes. The corner can no longer have a different width and height, it is now a normal 90deg radius only. It is set as a% of the shorter side, regardless of the size of the rectangle. The default setting is 20%. By setting the radius to a maximum (50% of the side) it is easy to create a full sausage shape of any size: 2_181055_160000000.png In the next Templot program update. Unfortunately this change will mean that if existing sketchboard SK9 files contain rounded rectangles it will not be possible to edit the corner size on them. It would be necessary to delete them and create a new rounded rectangle. Thanks for reporting this problem. ...
122. MERG DCC system
... ( sorry, not very good english there). Sure you get my drift. Rob Hi Rob. I don't think you need to go to those lengths. I have been watching a DVD about Level Crossings and with one exception, all 4 gates move together, which tallies with my memory of how they worked. The exception was where the road was considerably narrower than the railway and the gates overlapped when closed to road traffic. It should also be noted that often all four gates were not the same length, a shorter one being paired with a longer one. Such is the case with the example I plan to model, one gate in each pair has 2 panels and the other 3. Servos are not something I have used so far, so cannot comment on that aspect of things. Regards Tony. posted: 23 Oct 2017 23:12 from: Rob Manchester Judi R wrote: Rob Manchester wrote: Is the DCC control system a British designed product? If so, why does the hand unit have 'consist' on it- ...
123. Newcastle Diamonds
... asking how to get the foundations right is the best way to start. Hi Richie, As Phil says, it is usually best to lay out the running lines first, and then insert pointwork into them as needed. But with such an iconic junction, you may find that the running lines need a bit of tweaking in order to fit in all the diamonds. Doing it in 00-SF rather than exact-gauge does mean that all the crossings will be in slightly different places (a 00 diamond-crossing is shorter than the same angle diamond in P4). There is a separate topic under way showing how to insert diamond-crossings within pointwork, see: topic 3405 It is waiting for me to post the next instalment, which I must get back to soon. cheers, Martin. posted: 20 Apr 2019 13:57 from: Richie Kynaston Phil/Martin, Thanks for the quick replies. I'll work on that basis, and post an update probably tomorrow. Martin, just for reference, I've swapped to 2mm gauge ...
... John, My understanding is that S1J chairs were used on 12" joint timbers at the ends of each track panel. The S1J is 10" wide rather than the 8" of the standard S1. Rob posted: 24 Sep 2019 20:25 from: Martin Wynne Hi John, The use of the heavier joint chairs on wider 12" sleepers adjacent to the rail joints at each end of a track panel was common practice in the pre-group period (pre 1921). They were often used in conjunction with shorter 9" 2-hole fishplates so that the joint sleepers could be very close together, typically at 15" centres with only a 3" gap between them. The theory being that strength in the rail support was more important than strength in the fishplate. Generally the theory fell out of favour in the light of experience. Here's a list of pre-group companies which used 12" sleepers at rail joints, mostly with wider joint chairs on them: G&SWR GCR GER GNR *L &YR LNWR * ...
... operator becomes a word in its own right, not merely punctuation, and the line demands to be read as a full sentence: the water is hot. Which not only takes much longer, but seems to involve an entirely different brain function. Also nowadays with failing memory, by the time I've reached hot I've forgotten that it's water we are talking about and I need to read it all again. 2 things I can remember, 3 is asking a bit much. This memory thing may be why my preference for the shorter style seems to have hardened over the years, and I now sometimes edit the spaces out of code on web sites before reading it so that I can understand it clearly. I don't think the analogy with ordinary text holds good -- not much plain text has characters such as := or <> in the middle of a sentence. Also most printed text uses a variable-width font where spaces are much narrower than most other characters. For coding we need a fixed-width font which makes the spaces much ...
... single slip yet, it's looking like this, so plenty of scope still to have a go.3591_091427_470000000.png posted: 19 Aug 2020 12:50 from: Julian Roberts Here is my track plan for Kyle. It's more or less complete, to the extent I've printed out the turnouts (except the main line long one) and started construction with the right hand end off stage one. Still open to suggestions... It fits within an 8 foot length, though not quite onto two four foot boards- one has to be shorter, the other longer, by 3". I have done a re-design of the turnout that follows the 3 way so that the layout can fit onto two equal length boards. It also entails dividing the "Ash Road Turnout", which is a loose heel type. The problem there is that the loose heels would be on the very edge of the board, and I'm not sure whether that could work. I'm as yet uncertain in any case how to make this type. Two equal sized boards could ...
... to use very short steps: 2_270842_500000002.png The above created by drawing the dummy vehicle at 3" steps (full-size prototype!), and still it is less smooth than I would have expected. To keep memory use sensible I have limited the length of the envelope to a maximum of 5000 3" steps, i.e. 1250ft of track, or 5000mm at 4mm/ft scale. If the template is longer than that the remaining length won't have the envelope over it. It would be necessary to split it into shorter templates if required. And up to 8 such templates can be created at the same time on different templates. Still some work to do on this to get neat results in practice on a full track plan. regards, Martin. posted: 27 Sep 2017 15:11 from: Raymond Martin, This is a vast improvement on the method I used to use creating numerous vehicles and the new 'make a slip' is great. Thanks again for all that hard work. posted: 27 Sep 2017 19:17 from ...
128. Check this out.
... on the right, and the shortened check rail on the left. Looking closely at the image, I think I can see the far end of the short check rail has a machined flare rather than bent. The near end is too fuzzy to be sure. Admittedly there is no evidence of any former rodding or redundant chairing, and no obvious reason for the very long check rail (8 timbers each way), so it's a stab in the dark. Notice also that the check rail hidden by the windscreen wiper is shorter at the front than its opposite check rail, again for no obvious reason. This diamond may have been an emergency repair using whatever components the gang had to hand, maybe after derailment damage. Martin. Parts of Templot Club may not function unless you enable JavaScript (also called Active Scripting) in your browser. Templot Club> Forums> Prototype pics> Check this out. about Templot Club Templot Companion- User Guide- A-Z Index Templot Explained for beginners Please click: important information for new members and first ...
... looks to an artist, but to an engineer's eye that track looks too flimsy to support the weight of the traffic. The sleeper centres look to be around 32"/33". Perhaps ok for lightly-used sidings or a Light Railway. For a 4ft-1.5in railway to handle the same weight of traffic as a 4ft-8.5in railway, the track needs roughly the same area of timber. That way the pressure transmitted to the underlying formation is about the same. To have the same area of timber with shorter sleepers, they need to be closer together. 4ft-8.5in straight track in running lines with 8ft-6in sleepers has an average spacing in the UK of 30" (24 per 60ft rail), and closer on soft ground and sharp curves (25 or 26 sleepers per 60ft rail). Peco seem to have gone for 28" spacing for their 4ft-1.5in track, which looks about right to me. That's equivalent to an average spacing of 25.7 sleepers per 60ft. That's at the upper end of sleeper ...
... a diamond crossing on an intersection, but failed to make a note of where it was and how to do it! Can anyone enlighten me? Thanks. posted: 30 Nov 2019 01:32 from: Martin Wynne Hi Roy, Start with one of the tracks as a background template, and the other track in the control template. Click on the background template. Then it is just 1- 2- 3, like this: 2_292030_390000000.png Note that it won't work for short-angle diamonds, i.e. any crossing shorter than 1:1.5. cheers, Martin. Parts of Templot Club may not function unless you enable JavaScript (also called Active Scripting) in your browser. Templot Club> Forums> Baffled beginners> Insert diamond crossing on intersection about Templot Club Templot Companion- User Guide- A-Z Index Templot Explained for beginners Please click: important information for new members and first-time visitors. indexing link for search engines back to top of page Please read this important note about copyright: Unless stated otherwise, all the files ...
... away from the program coding to get on with it. regards, Martin. posted: 10 Sep 2017 08:48 from: Godfrey Earnshaw Hi Martin A few weeks ago, pre version 215a auto slip feature, I created a station throat, as in the attached .box file. Post 215a I thought it would be interesting to compare my original throat with a similar auto slip version. I created the new version and overlaid it on the original, it was a pretty good fit, except, the auto slip roads are shorter than my manually created slip roads. Therefore the point blades end up on a different timber. Undeterred I again created the slip roads manually over the auto creation and I still got longer slip roads. I cannot see a reason for this having followed the manual creation procedure to the letter or to be more accurate the single slip video. Please help me understand where I have gone wrong. cheers Godders Attachment: attach_2487_3073_group_Auto_Create _Slip_2017_09_10_0827_45.box 168 posted: 10 Sep 2017 09:08 from: Andrew Duncan Hello Martin Yes I hear that ...
... Because the turnout curve continues along the diverging rail, that rail separates from the main rail more rapidly than is the case for regular V-crossings. The crossing chairs are designed for fixed rail separations, and it follows therefore that in a curviform crossing the standard crossing chairs will not fit the rails at 30" spacings. In the past I have assumed that in practice the gang would deal with this either by moving the chairs by a fraction on the timber, or where that is insufficient by using chairs intended for a shorter crossing angle. There is a huge range of crossing chairs available bearing in mind that two or three sizes are needed at every standard crossing angle, so it's very likely that one having the required rail separation could be found. But it is equally possible that the design office would specify timbers for a curviform crossing in a complex formation at the actual required closed-up spacing. Which is straightforward enough, but would leave a large gap between the last such closed-up timber and the joint timber at the end of ...
... about this. Templot will then adjust the timbering to ensure that the nose is still supported on a timber. In the process the turnout will shorten slightly. This will leave small gaps between existing templates on an existing track plan, but it won't affect the alignments. 2_232021_190000000.png Here on these overlaid 1:8 crossings you can see how a sharp nose (width=0) is aligned to the FP marker, and the timbers need to move 2mm back in order to support it. In the process the turnout becomes 2mm shorter, as can be seen from the positions of the wing and check rail ends. In addition to the above, take a couple of thou off the top of the vee nose in the prototype fashion, so that it is fractionally below the level of the wing rails. This allows for the coning angle on the wheel tread. Finally round off the nose of the vee and remove any sharp edges to match the corner radius on the plain rail part. Here's a new prototype blunt nose, showing it shortened back from ...
... risk of dipping and broken fishplates. In non-running lines such as crossover connections, yards and sidings, the spacings might be wider, although usually some attempt is made to get the timbers as close to the rail joints as possible. But, for bullhead track, the timbers can't be closer than 12 inches from the joint to the timber centre, i.e. at 24" centres minimum, otherwise there isn't room between the chairs for a standard 4-bolt fishplate. If necessary that can by got round by using shorter 2-bolt fishplates, or saddle chairs (which support the rail but have no jaws or keys), but such things are quite unusual to see in most bullhead track. For flat-bottom track the timbers can be closer to joints because the fishplates can fit above the rail fixings in most cases. The above applies to standard-gauge track (nowadays called "heavy rail") -- for narrow-gauge, light railways, trams, industrial sidings, etc., almost anything is possible. Jason ...
... in the past. peco points are 20 inch (508mm) radius with a V angle of 10 degrees. The distance from the bottom of the V to the tie bar is 105mm. The nearest point to this I have tried to draw with Templot is a B6. this has a similar radius of 566mm but the length from V to tie bar is 134mm and the V angle is larger. My question is why are the Peco points more compact and what do I have to do with Templot to produce something similar ie shorter in length but with a 20 inch radius. posted: 14 Jul 2017 17:16 from: stuart1600 Hello, Alan (since you didn't sign your posting I'm guessing that's appropriate) You've hit on the fundamental difference between Templot and train-set type pointwork- the latter has to be manufactured to a fixed geometry so that individual points, crossings, etc.,. can be interchangeable. Templot draws pointwork templates to prototype practice. The first question would be why do you want to replicate the Peco geometry? Are ...
... the pointwork itself. Nice to see the 12" joint sleeper (and with the wider joint chair), although that puts it mostly in the pre-group era (but lasting on existing track well into the grouping) and not for all companies. By 1926 the LNER drawings say "Special joint sleepers 12" x 5" may be used where the formation is soft or where the traffic is specially heavy and fast". So not so likely on the typical 1950s branch line. But such lines often have rails shorter than 60ft (typically 45ft), so easily modelled by shortening the base and cutting off the 12" sleeper. Templot can print the rail joints with 12" joint sleepers if you set the 12" joint width at real> timbering> timbering data... menu item. 12" joint sleepers were often used close together with short 2-bolt fishplates, which I can't remember ever seeing modelled, and would be easy to do with these bases. cheers, Martin. posted: 26 Sep 2018 13: ...
... posted: 6 May 2020 06:31 from: Martin Wynne There are two new fixing peg positions, OSXP and OSMP: 2_060123_450000000.png These make it a lot easier than previous methods to get an outside slip road aligned and to establish the V-crossing angles and positions. At least for a regular diamond-crossing: 2_060354_000000000.png That's a 1:4.5 diamond with A-7.75 turnouts. I have made a bit of video to explain the process: http://flashbackconnect.com/Default.aspx?id=3o4-PiKKPVaAXZsePJOwSA2 For shorter diamonds the same procedure can produce the type of half-scissors where the switch deflections are in the side road: 2_060339_590000000.png But again only for a regular diamond (both roads the same radius). The above was a 1:3 crossing with A-6.75 turnouts. (We don't actually have a name for a half-scissors with the switch deflections in the side road like a slip. A normal half-scissors has the switch deflections across the diamond.) If you want to work the other way, ...
... 175 posted: 18 May 2020 17:51 from: Martin Wynne RogerW wrote Is there a real prototype of this formation, or is it just a "manufacturers convenience"? Hi Roger, It's a double outside-slip of the German Baeseler pattern: 507px-2001-07-19.0004.DKW-Baeseler.jpg This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license Quite common on the continent but not used (as far as I know) in the UK. The outside-slip design allows for a shorter crossing angle at the same radius, for cramped station throats. Or an easier radius for higher speed in running lines. Can be done in Templot with a bit of fiddling about, but not easy to build. cheers, Martin. posted: 18 May 2020 19:33 from: Bernard Haste Do you know if anyone has built a model of one? Bernard posted: 26 May 2020 20:24 from: roythebus Yes, Roco. posted: 26 May 2020 21:39 from: Bernard Haste Tillig do ...
139. Scissors crossovers
... . I am not sure if this means that more difficult to get make template or it is more difficult to make the formation from the template. Could I get clarification? Are they both prototypical? Hi Graham, In a type 1 scissors crossover the V-crossings on the diamond are in the turnout radius section of each turnout: 2_280306_090000000.png In a type 2 scissors crossover the V-crossings on the diamond are in the crossing entry section of each turnout: 2_280306_090000001.png colour codes: 2_280441_190000000.png Note that the type 2 scissors is shorter with sharper turnout curves, so you may need to use a longer size for the turnouts. Both types are equally easy to get to this stage in Templot with a few clicks. See below for the basic recipe. The diagrams above are in curved track, but it is the same for a straight scissors. However, to get beyond this stage to detailed templates with all rail conflicts removed is much easier in a type 2 scissors, because in that case the middle diamond-crossing is an ordinary regular diamond with ...
... : Martin Wynne Godfrey Earnshaw wrote: My main question is, why is there a change in the position of the rail joints? Hi Godfrey, You have opened a can of worms which I have been trying to keep the lid on for years. Just trying to explain it is going to create a page full of ifs and buts below. The prototype rail lengths and timbering for K-crossings varies a lot, and for movable K-crossings (switch-diamonds) prototype info is almost impossible to find for angles shorter than about 1:9. There are also significant differences between bullhead and flat-bottom designs. For Templot I tried to simplify it by providing: 1. some default settings which look about right in most cases, and 2. the option to set custom rail lengths if you know what you want. But some of this is still a work-in-progress on my to-do list. My excuse is that I'm still waiting to find some definitive prototype information. The rail joints change because for movable ...
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