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Search results for: blunted
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21. GW 'V' Rail
... ' configuration IE 5 timbers under the 'V' with all timbers at the average spacing of the GW timbers plus 12 1/2" after the last one for the joint, the result is the same, as per the 'V' crossing options dialog boxes. Attachment: attach_1326_1796_GW_1_in_6_turnout _10_ft_switches.box 231 Last edited on 21 Jan 2012 22:06 by Phil O posted: 21 Jan 2012 23:22 from: Martin Wynne Hi Paul, Phil, Starting with Paul's file I made the following changes to match the GWR drawings: GWR blunt nose width is 11/16" (0.69") -- REA is 3/4" (0.75") (bullhead) GWR blunt nose to A timber centre is 3" -- REA is 4" (bullhead) GWR vee leg length is 12ft from the fine point FP. For Templot we need the vee leg dimension from the centre of the A timber, so for 1:6 angle that is 144"- 3"- 6 x 11/16"= 136.88" from the centre ...
... flangeways. I have no idea if this is correct for 1/87 H0e -- we have tried to get definitive information about this model gauge before. It seems that a UK-style 9ft straight switch is very close, so I used that as-is with some blanking on the switch front. It's not possible to read the dimensions clearly enough to do a proper custom switch. It needed only a slight adjustment to the V-crossing entry straight to match the 9500mm line, which I think is to the blunt nose, not the FP. I shortened the check rails by eye to the drawing. regards, Martin. Last edited on 18 May 2013 13:38 by Martin Wynne posted: 16 May 2013 10:34 from: Martin Wynne Hi Paul, I have had a fresh look at this. The 5277mm dimension is clear enough and I think confirms that the crossing angle is 1:7 RAM and that the 9500mm dimension is to the FP as you said and not the blunt nose as I previously thought. I ...
23. 0-14
... 11:57 from: Martin Wynne Hi Bruce, The missing information is either the planing angle on the blades, or the heel spread (offset) dimension (distance between the running edges at the switch heel): wdlr_ng1.png Also needed is the angle at the V-crossing (frog), the 15 degrees is presumably the exit angle beyond the curve? Can you obtain this information? If not we can proceed on trial and error and guesswork. Ideally we also need the rail top width and the width of the blunt nose on the vee. In a single template Templot can provide either a straight section all through the V-crossing (" regular" type) or a curve running all through (" curviform" type). To add a curved divergence beyond a straight V-crossing requires a separate additional template. The two templates can be grouped for the purpose of making crossovers, etc. regards, Martin. posted: 22 Mar 2008 17:33 from: Bruce Wilson Martin: I have emailed David to see if he ...
... based on the known or likely prototype radius, not the full-size equivalent of the model radius. Otherwise nearly all the K-crossings on the model would be movable, which is not typical of the prototype where the majority of K-crossings are fixed. Check rails (guard rails) are used only for fixed K-crossings in which the diamond point rails are fixed. Check rails are not required for movable K-crossings because the wheels see no break in the rail. K-crossing point rails are blunted to a tip width 1/8" less than the corresponding V-crossing blunt nose, which can be set by clicking the REAL> CUSTOMIZE V-CROSSING> BLUNT NOSE... menu item. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- regards, Martin. posted: 20 Dec 2007 03:22 from: Gordon S Thanks again guys. Having printed off a 1:10 ...
... 268.83( 1 full rail lengths+ 3 sleepers in 12.01% of a rail length )|| diagonal-road centre-line radius= straight (regular half-diamond)| V-crossing entry-straight (curve-end to fine-point)= 16.0|| half-diamond main-road inter-length (CTRL-0 to MCP)= 146.17| half-diamond virtual lead (K -crossing to fine-point)= 146.73| half-diamond actual lead (K -crossing to blunt nose)= 148.74|| knuckle bend radius (normal)= 32.0| blunt nose to timber A= 1.33| width of blunt nose= 0.25|| wing rail reach length (main-side)= 16.0| wing rail reach length (turnout-side)= 16.0| check rail overall length (main-side)= 52.0| check rail overall length (turnout-side)= 52.0|------------|smallest radius on this template= 1650 ...
26. Slips
... , See the "gentle geometry" page in the Templot Companion at: http://www.templot.com/martweb/gs_geometry.htm#peg_positions from which: peg on FP -- Sets the fixing peg at the Fine-Point of a V-crossing (the rail gauge-face intersection point). Repeatedly selecting peg on FP (CTRL-4) toggles the peg alignment between the main road and the turnout road. The fine-point is a little way in front of the actual nose of the vee, which is blunted off to a width of 3/4" (scale) on bullhead track. 2_160721_340000000.png red_pointer.gif Do not confuse this Fine-Point at the gauge-face intersection with the term "frog point". This means the location of the blunt nose of the vee and is also sometimes abbreviated to FP, for example in North America (where the nose is usually blunted to 1/2" width). peg on TCP -- Sets the fixing peg at the Turnout-side Crossing Point. This position is on ...
... for any of them, as far as I could tell. To my mind, a lot of these are not part of the "core business" of Templot. I've never modelled FB rail, but if I did then the foot lines would certainly be useful. I'm sure though that for those that do model FB, the foot lines just work so again you never hear about it. The sketchboard function took months of work... I'm afraid I really do think that was a step too far! To be blunt, I think it's a gimmick. I certainly didn't realize you had to pay for a license- I wouldn't have! And having paid for the license, you now give Templot away for free? Templot is for creating accurate, prototypical templates and track formations. Pencil and paper (in my case) is for designing layouts. And if so, where to next? There are several extra functions I would like to add for my own use, but is Templot already too complicated for most users? Should I be ...
... rail length= 180.0 ): approach track length= 0 exit track length= 12.67( 0 full rail lengths+ 2 sleepers in 7.04% of a rail length) [size=] switch radius (rail gauge-face)= 3800.0 turnout radius (rail gauge-face)= 2449.66 entry straight (curve-end to fine-point)= 11.47 [size=] switch front (rail-joint to tips)= 21.33 virtual lead (tips to fine-point)= 292.09 actual lead (tips to blunt nose)= 294.08 blunt nose to timber A= 1.33 width of blunt nose= 0.25 [size=] wing rail reach length (main-side)= 16.0 wing rail reach length (turnout-side)= 16.0 check rail overall length (main-side)= 52.0 check rail overall length (turnout-side)= 52.0 -- -- -- -- -- -- minimum radius on this template= 3845 mm( 151") total angular swing on this template=[ -3.29 ...
... bend comes out with a bend very similar to the circumference of a Scalefour mug. So I bent the rail around that, carefully checking until the straight parts lined up with the stock rail and the wing rail of a Templot diagram (I put 0 flare on the wing rail and extended them considerably so that I would have something more to align them on). As a point of note, the curve should be even more gentle than the mug. I put a very slight taper on the nose of the vee and blunted it to .25mm and tack soldered. Now I have found that the wheel is dropping into the knuckle- not a lot and it is still supported on the outer edge, but only just. The curve is also starting a little way before the X chair rather than AT the X chair as per the diagram. I was wondering if this might be a problem of trying to put an exact geometry with the "far too coarse and overscale" flangeways of P4. In effect to open up the flangeways to .68mm rather ...
... the chair with just a slight bit of movement back and forth to bed the melted plastic into the grain of the wood. Also, as an aside, I've been laying a load of plastic tieplates for a US style layout using Butanone to stick them to ply ties (sleepers) and I've started using a hypodermic syringe instead of a brush and it is so much easier to apply the solvent. The fumes from the Butanone are much reduced and it doesn't evaporate in the syringe. You can get syringes and a pile of blunt needles of various diameters from Ebay for a pound or two. I don't think I'll ever use a brush again for the job. Jim. posted: 19 Jun 2016 23:34 from: Rob Manchester Hi Jim, Nice idea with the syringe/needle. Any idea what size needle you use? Just wondered if there was an optimum size. Lucky we have Ebay to buy these, round where I live buying lighter fluid for cleaning gets a stern look from the shop staff.... Thanks Rob posted ...
... a neater result, but it is difficult to hold the assembled vee for that if you intend to machine them on the mill. The splice rail C is as B, and the point rail D is the same again but of the opposite hand. It is notched down to the web to make a soldered joint at s. In view of the solder fill and jig assembly, a filed notch is good enough, although you can of course machine a proper prototypical spliced recess if you wish. The final tasks are to blunt off the nose as shown, to a scale width of 3/4" (bullhead) or 5/8" (flat-bottom), and to re-instate the rail-head corner radius on the machined areas. A few strokes with a fine file and a final polish with abrasive paper will do that. It's also a good idea to take a few thou off the top of the vee nose so that it dips down slightly below the wing rails. This allows for the coning angle on the ...
... full-size equivalent of the model radius. Otherwise nearly all the K-crossings on the model would be movable, which is not typical of the prototype where the majority of K-crossings are fixed. -- -- -- -- --- Check rails (guard rails) are used only for fixed K-crossings in which the diamond point rails are fixed. Check rails are not required for movable K-crossings because the wheels see no break in the rail. K-crossing point rails are blunted to a tip width 1/8" less than the corresponding V-crossing blunt nose, which can be set by clicking the REAL> CUSTOMIZE V-CROSSING> BLUNT NOSE... menu item. I can't put all that in a warning. Maybe I can make the above notes pop-up the first time a user sets a K-crossing angle flatter than 1:8. It can then be clicked away and not appear again. regards, Martin. posted: 18 Feb 2014 15:09 ...
... a calculator to set the average spacing (and hence the rail joint positions), so that you can then shove each timber afterwards to the exact required position. The starting point for making the settings is deciding the position of the rail joints in the wing rails, and to the end of the vee rails, relative to the centre of the "A" timber under the crossing nose. And the spacing from the joints to the adjacent timber. This information is normally available from the prototype data. The position of the blunt nose relative to the centre of the "A" timber is set in the blunt nose menu item. timber_spacings_899x436.png More info about all this: http://templot.com/companion/timber_spacings_overview.html The switch drive mark cannot be easily adjusted. It is not intended to represent the stretcher bar, it is intended to mark the template for the drive slot in the trackbed. If it is unwanted or not in the required place it can be turned off -- untick the do> switch drive mark menu item. regards, ...
... 1 more@ 30"). For both versions of the 17'-6" (210") switch, the stock rail is 32'-9" (393") long. For the flexible version, the switch rail is 31'-6" (378") long. (These dimensions are used in Templot only to mark the rail joints, they do not affect the geometry.) Combined with a 1:10 (CLM) V-crossing angle, the lead length (points to blunt nose) is given as 84'-10.1/4" (339.42mm in 4mm scale). The blunt nose is 5/8" wide. The radius is given as 941'-9". On past experience reconciling these lead and radius dimensions from pre-group drawings will be difficult. In the NER case that is guaranteed, because on one drawing the radius is shown to the track centre-line, and in another drawing the same radius is shown to the rail. In practice the quoted dimension ...
... one at any time. To do what you want will need a new file type and some buttons to save and load it. I will look at doing that. regards, Martin. posted: 15 Aug 2017 14:12 from: Martin Wynne p.s. just to add that by using a library template you can set up so much more for your narrow-gauge templates than just the gauge and scale. For example timber sizes and spacings, check rail settings, rail section, trackbed width, platform edge spacing, blunt nose width, plain track rail lengths, etc. etc... Just copy it to the control template, and off you go. Martin. posted: 15 Aug 2017 14:17 from: rynd2it Martin Wynne wrote: p.s. just to add that by using a library template you can set up so much more for your narrow-gauge templates than just the gauge and scale. For example timber sizes and spacings, check rail settings, rail section, trackbed width, platform edge spacing, blunt nose width ...
... without an actual turnout in my hand. I took the dimensions from the rule you helpfully included in your photo: 2_151827_020000001.png Here are the settings I ended up with. Note the s prefix to enter model dimensions in mm: 2_151827_020000000.png The bottom 2 dimensions are used only to position the rail joint marks on the template. You can ignore them for the purpose of creating the geometry. What you do is start with a turnout of the required crossing angle (1 :5) and set out* the position of the required blunt nose -- I guessed 320mm overall from your photo. Then keep trying a different curved switch radius until you get a match to the blunt nose position. You can tweak it by adjusting the crossing entry straight. If you enter your actual measurements in place of my guesses, you should end up with a reasonable match. (The heel offset is measured running-edge to running-edge, NOT over or between the rails.) Bear in mind that this is not the intended way of using Templot, hence ...
... pretty competent with that, it's the physical construction that is puzzling me. In tangent track I wouldn't have a problem but because the vee is regular and the turnout is on a curve I am unsure what to do. Thank you for answer though. Cheers Godders posted: 13 May 2019 19:52 from: Phil O I would still start with the "V "s, you should be able to align them pretty well by eye over the template. Just lately I have been putting a lace making pin in the blunt nose position to aid getting the blunt nose in the correct position as I have been struggling to see it's exact location, I'm part way through a pair of turnouts and a diamond in a half scissors crossing. I hope to finish when I return home from my parents later this week. posted: 13 May 2019 20:13 from: Jim Guthrie Godfrey, I would normally start with the "K" crossings of the slip which can be difficult to align if both roads are on a curve. Once these are ...
... crossings (frogs), remember to reproduce the rail head corner radius on the nose of the vee. It also helps if the top of the nose is taken down a couple of thou below the wing rails. This allows for the wheel coning as they roll off the wing rail onto the nose. If you are careful in this way you can get silky smooth running through 00-SF crossings. Been there, done that, got the 00-SF T-shirt! For the best appearance of the crossings, blunt off the tip of the vee in accordance with prototype practice, as shown on the Templot templates. This makes a noticeable improvement in realism -- at least to anyone familiar with track it does. You can do this with 00-SF, but not with 00-BF which requires knife-edge sharp vees to be reliable -- and they don't look good. The prototype vees are 3/4" wide at the tip. For 4mm scale that's 0.25 mm or 10 thou -- quite noticeable. But ...
... as when doing scissors crossovers it is some times necessary to omit only the 'V' check and leave the obtuse check or is it necessary to use two partial templates to achieve this. Also when removing the flares I lose all the flares including those on the 'V' but the diagram in David Smiths GWR switch and crossing practice book, blocked crossing work on page 91 shows at 1. the diamond 'V' check in the centre of the turnout 'V' approaches only flared at one end and the other end machined to a blunt nose. Sorry to be a pain. Cheers Phil posted: 29 Jun 2007 07:46 from: Martin Wynne Phil O wrote: I find that when I delete or omit a check rail on a half-diamond it deletes both the 'V' check and the obtuse check as well. Hi Phil, Yes, that's not very logical is it? I will change it. Thanks for drawing it to my attention -- that's exactly what this "I wish" forum is for. I can look here first ...
... vee rail... menu item). To get an exact match to the timber spacings, average the spacings given on the drawing to find the custom setting, and then shove individual timbers to the actual spacings required (see shove spacings topic). For a 1:6 crossing this means 31"+ 32"+ 32"+ 29.5"= 124.5", average 124.5/ 4= 31.125" spacing to enter in Templot. The joint spacing is 25" (12.5" to rail end). GWR blunt nose width is 11/16". Vee rail length is 12ft from the fine-point for all sizes. I will try to find time to post a customized template later. regards, Martin. posted: 6 Nov 2008 22:30 from: David Hi Martin Thanks for your comprehensive reply. Your reply certainly clarifies things more than the picture I found did. I shall attempt to digest the data you have provided and let you know how I get on. I shall explore the link you provided on " ...
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