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... and I have not had a lot of luck finding anything on the Web. Any information would be greatly appreciated. (Here's a bit of track I've been using to test the latest chair design.)undefined Cheers!Andy Attachment: attach_2150_2734_DSCN1813.JPG 2548 posted: 9 Aug 2015 06:11 from: Martin Wynne Hi Andy, Chairs vary quite a bit across different periods and companies. There are drawings of "Standard Railway Equipment" (i.e. REA) chairs here. These would be your best bet for the majority of bullhead models: http://www.scalefour.org/downloads/gwrtracknotes/R4290A.pdf Plus several pages of specifically GWR chairs here (drawings 1734- on): http://www.scalefour.org/resources/gwrtracknotes regards, Martin. posted: 9 Aug 2015 08:00 from: Andrew Barrowman Hi Martin, Thank you very much! From a 3D printer perspective, the bigger the better. Based on your information it looks as if I'm not too far off. BTW, in case you had not already guessed, my ulterior motive ...
... topic: 2645 00-SF Gauges for FB track posted: 9 Mar 2015 02:15 from: Rob Manchester HI, Is there a source of 00-SF track gauges for people using flat bottom rail such as the code 82 from C&L? The normal 00-SF gauges now sold by C&L are fine for code 75 bullhead rail but are rather slack on the finer head of the flatbottom rail. Surely there must be some people building FB trackwork in 00-SF? Regards Rob Last edited on 9 Mar 2015 02:15 by Rob Manchester posted: 9 Mar 2015 03:28 from: Martin Wynne Hi Rob, Prototypically both code 75 bullhead and code 82 flat-bottom rail should have the same head width -- 2.3/4" scale (0.92mm). It's a bit odd if they are not. You may find FB rail from a different supplier is more accurate. DCC Concepts in Australia have what they describe as 00-SF gauges for flat-bottom rail, see: http: ...
... topic: 3307 progress report- chairs in the output posted: 16 Jul 2018 20:34 from: Martin Wynne As I mentioned, the reports of folks using 3D printing to create bullhead chairs has spurred me to move chairing in Templot from the NOD* list to the to-do list. I started some experimental work a couple of years ago, and I have now returned to it. It seemed that if the output was to be of any use in 3D printing, the chair outlines would need to have the proper corner radii. It's a lot of extra calculation with 4 chairs on most crossing timbers, but it hasn't impacted too much on the screen response for full track plans. Obviously you would switch the chairs on only for the final printed templates, they are not needed while track planning. It's fiendishly complex. For example the REA bridge chairs (L1) have a larger corner radius (1.3/4 ") than ordinary S1 chairs (which have 1" corner radius): 2_161458_330000001.png And GWR slide chairs have a ...
... topic: 3096 Matching the new PECO bullhead in templot posted: 6 Oct 2017 23:28 from: madscientist Hi My actual requirement is to build 00-SF points that will flare out to match PECO bullhead, was wondering if there is anything that matches the timbers of the PECO plain track in Templot I dont need to match it up to the new PECO bullhead point work so what I need is 00-SF with PECO bullhead sleepering thanks Dave (PS I dont have any PECO bullhead yet, so thats part of the issue, its on its way though) posted: 6 Oct 2017 23:50 from: Martin Wynne madscientist wrote: Hi My actual requirement is to build 00-SF points that will flare out to match PECO bullhead, was wondering if there is anything that matches the timbers of the PECO plain track in Templot I dont need to match it up to the new PECO bullhead point work so what I need is 00-SF with PECO bullhead sleepering Hi Dave, I suggest you flare the Peco bullhead to match ...
... entirely in the point rail as per this illustration from Martin... gallery/2 /thumbs/2_201959_350000000.gif Good Luck, Howard posted: 30 Jan 2011 13:46 from: JFS Sorry, did not link the image correctly... gallery/2 /original/2_201959_350000000.gif Also this example from David R gallery/100/original/100_170919_400000000.jpg Best wishes, Howard posted: 30 Jan 2011 13:47 from: BeamEnds Hi Howard, yes, the check rails are probably short, but as I'm working from a bullhead drawing (changing to a flat bottom rail drawing without re-doing the layout doesn't appear to be possible due to geometry and stuff and I have no bullhead rail) it will have to do. Which translates to 'I forgot until I'd done half of them'. The rest will be proper jobs. I'm not worried about the point of the vee. As I'm using the timbers and chairs as the jig, filing both to a point makes getting it right much easier. Maybe next time! Cheers Richard posted: ...
... topic: 2040 New bullhead turnouts posted: 7 Aug 2012 00:50 from: Martin Wynne New bullhead turnouts being installed at Exeter: http://www.rmweb.co.uk/community/index.php?/topic/59971-good-news-from-riverside/ http://www.rmweb.co.uk/community/index.php?/topic/59973-brand-new-bullhead-points/ Last edited on 7 Aug 2012 02:02 by Martin Wynne posted: 7 Aug 2012 08:51 from: JFS The unanswered question is- why bullhead??? Many thanks for posting the link. Regards, Howard. posted: 7 Aug 2012 10:00 from: Martin Wynne JFS wrote: The unanswered question is- why bullhead??? Hi Howard, Least expense I would think. The rails and fittings are probably refurbished material lifted from elsewhere, on new timbers. And using bullhead turnouts for renewal means they can be drop-in replacements for what was there before, requiring minimal disturbance to the existing sidings. The basic REA design for ...
... topic: 2835 New 00 bullhead track from Peco posted: 27 Jan 2016 12:52 from: Martin Wynne Not strictly relevant to this web site, but many members may be interested. Copied from: http://www.pecopublications.co.uk/peco-anounces-2016-new-items-programme.html identifier%283%29.jpg Peco announces 2016 new items programme Peco – which is celebrating its 70th anniversary this year – has revealed its plans for several new products in its 2016 Spring Report, which was published to coincide with the manufacturer's presence at the recent Nürnberg Toy Fair in Germany. The manufacturer's headline announcement is that it is developing brand new code 75 Streamline bullhead track for OO. The new flexible wooden-sleeper track (ref.SL-108F) will be representative of the type which was commonplace across the UK rail-network throughout the steam era, seeing use on both mainlines and secondary routes. Indeed, bullhead track can still be found today on some parts of the national network. Bullhead%20001%20CU.jpg The new bullhead track will be fully ...
... letters BH.etc at the begining of the line. I presume this means that the Template is for Bulhead rail. If however the switch is changed to a Flat Bottomed one this does not change the BH to FB and produces the confusing message BH.S4/P4 FB BS110A etc, see screen shot below. If the control template is extended and the exit track split off this does not appear as Flat Bottomed but if a Turnout is inserted this is Flat Bottom as it should be. Also the line of text Rail head only( bullhead) rails vertical, at the bottom of my screen shot window does not change either. Hope you can sort this before the next update. Tony. 2151_051324_050000000.jpg posted: 6 Jul 2012 00:40 from: Martin Wynne Hi Tony, Thanks for that. It is actually working as intended, but I can see that it can be confusing. Changing to one of the FB switches in the selection list changes only the switch geometry, not the type of rail. To change to using FB rail (and showing the ...
... topic: 3074 Peco 00 bullhead posted: 8 Sep 2017 17:41 from: Martin Wynne Peco have today released a first picture of their new 00 bullhead pointwork: http://www.facebook.com/RailwayModeller/photos/a.103914919643537.4497.10336329303 2033/1480230208678661/?type=3 &theater Martin. posted: 8 Sep 2017 22:18 from: Andrew Barrowman I'm not going to mention anything about the check rail keys on another forum posted: 22 Jan 2018 14:17 from: Martin Wynne Peco have announced that new in this range for 2018 will be the long diamond-crossing, single and double slips. Matching their existing Streamline 12-degree footprints (1 :4.7 crossing angle). Also saying plans in place for the curved turnouts and medium-rad turnouts. Martin. posted: 26 Jan 2018 11:59 from: rodney_hills Hello Correspondence with Peco, spun off from topic topic 3196____ RE: Peco Individulay code 75 bullhead RAIL? tabadvice <info@peco.co> To Rodney Hills Friday, January 26, 2018 ...
... 30/40 /+ years ago have been though many owners since they were originally drawn, often by hand. You couldn't email a CAD file to China for valve gear etches to be made in those days. What is my point exactly? Not sure but if anyone does have any views on the future of small suppliers this is where to put it.... Rob posted: 25 Jan 2018 23:33 from: rodney_hills Rob, Noted that large-supplier Peco does not (yet?) list code 75 bullhead rail amongst the Individulay components... I've just sent of a query on this to the Peco T.A.B. Regards, Rodney Hills Last edited on 25 Jan 2018 23:34 by rodney_hills posted: 26 Jan 2018 00:51 from: Rob Manchester rodney_hills wrote: Rob, Noted that large-supplier Peco does not (yet?) list code 75 bullhead rail amongst the Individulay components... I've just sent of a query on this to the Peco T.A.B. Regards, Rodney Hills Hello Rodney, No, ...
... , but it is difficult to hold the assembled vee for that if you intend to file them in a jig. 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 hand filed notch is good enough. 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 filed 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 wheels as they run off the wing rail onto the nose, producing smoother running. Here ...
... 04 from: Hayfield 982_180556_180000001.jpg To illustrate what I am trying to explain a P4 base on a P4 template This is the toe end where the main size differential of timbers are 982_180556_180000000.jpg The whole base against a standard Templot template, differing sleeper spacing, sizes and missing the last heal timber posted: 18 Apr 2017 12:15 from: Martin Wynne Hi John, Bear in mind that Templot templates are not a fixed design. You get what you enter in the settings. In order to get an exact match to prototype REA bullhead design you need to set: 1. P4 gauge, or preferably EXACT scale (in the gauge/scale dialog). 2. Change to CLM crossing angle (instead of the default RAM). 3. Set a generic type V-crossing. (Or if a crossing entry straight is shown in the REA tables, set a regular type V-crossing and adjust the entry straight to match) The "natural" turnout sizes will then match the REA bullhead designs quite well (bearing in mind that there ...
... ot sleeper spacing and numbers of sleepers. The track base has gone with a 24 sleeper 60' length. Each sprue has 12 sleepers, the first being 12" the rest 10". The gap between the first 12" sleeper and the 10" sleeper is less than the gap between the 10" sleepers. Two sprues back to back make up the panel. posted: 26 Sep 2018 09:23 from: Martin Wynne Hi John, Is this new track base for 16.5mm or 16.2mm? Given that 16.5mm flexi bullhead is already available from SMP, Peco and DCC Concepts (and Exactoscale?), the need or market space for another is a bit questionable. Whereas 16.2mm flexi would be a niche product with its own user base and the potential to dominate the finescale 00 market. Bearing in mind it's C&L supplying the 16.2mm track gauges (00-SF). If it is 16.2mm, it would validate my advice (universally ignored) when building 00-SF pointwork to do the transition to 16.5mm in the flexi- ...
... topic: 2065 Bullhead Cross-Section Diagram posted: 1 Oct 2012 12:37 from: James Hi, Does anyone have a cross section of bullhead track with either the prototype or P4 dimensions marked on it? The only one I can find online is an old picture but the reolution is too poor to make out the measurements! Thanks in advance, posted: 1 Oct 2012 13:00 from: David R Something like this? Attachment: attach_1509_2065_rail-sections.pdf 699 posted: 1 Oct 2012 13:15 from: Brian Nicholls Hi James, Hope these help. See attached PDF file of P4 Standards Bye the way, you can see the full size of the image below, on the image gallery (see button at to of screen) All the best, Brian Nicholls. Attachment: attach_1510_2065_P4-standards.pdf 560 posted: 1 Oct 2012 13:17 from: James Absolutely perfect! That's pretty impressive response time! Guess the measurements are in inches? Thanks very much, posted: 1 Oct 2012 13:19 from: Brian Nicholls ...
15. Minimum Radius
... Phil posted: 2 Sep 2010 16:03 from: Jim Guthrie Bill Fay wrote: What I would dearly love is a book or website that could educate me on the topic without having to have a degree in mathematics to understand it- oh and preferably GCR orientated Bill, It's worth trying to get a copy of "British Railway Track: Design, Construction and Maintenance" published by the Permanent Way Institution. This is the bible used by professional railway men. The older the version, the more information you get about bullhead track. My edition is the 1956 one and it has bullhead and flat bottom information. There are several chapters of mathematics applied to P&C design but it is surprisingly basic mathematics which you should be able to understand if you have got to "O" level :-) I've just had a look in Abebooks and there are several copies available- going back to the 1943 edition- the prices might be a bit of a shock :-) Jim posted: 2 Sep 2010 18:42 from: Bill ...
... topic: 2870 Bullhead rail on stone blocks posted: 15 Apr 2016 09:15 from: LSWRArt On a Railway History course, Dr. David Amos of Nottingham University showed the enclosed photograph of bullhead rail on stone sleepers at Over& Wharton (Winsford, Cheshire) on the LNWR. 2201_150413_300000000.jpg David thought that the bullhead rail had been laid in place of old tramway track, on stone blocks which originally supported fishbelly rail. But when I started to research this it appeared there was no tramway at this location. A local historian (Tony Bostock) has no knowledge of a tramway near the station; and there seems to be no obvious reason why a trammay should be so close to the town. There were extensive salt workings, but these sent the salt down to barges on the navigation by chutes. When the railways came there were works sidings which came directly off the branch lines, not via the station. I found an article in which Paul Hurley says that the LNWR used stone blocks experimentally instead of sleepers, so can anyone else ...
... topic: 2937 Bullhead to Flat Bottom- Prototype for Everything posted: 4 Nov 2016 21:50 from: philchudley Hi All They say there is a prototype for everything. Took this photo at Fareham Station Hampshire (they have just re-laid the junction there and some of the track in the station.) 672_041648_090000000.jpg (The original photo is the right way up, don't know why it gets rotated when uploaded to my gallery). I have examples of Bullhead rail joined to Flat Bottom rail with fishplates, but nothing like this before. It appears to be one continuous length of rail, morphing from Bullhead to Flat Bottom, I suspect the two rails are welded, but "you can't see the join". Phil Attachment: attach_2342_2937_Track.JPG 304 posted: 5 Nov 2016 18:47 from: DM Forged transition rail you most often see them where CEN60 and 113A meet, in a mainline. The 113A to 95lb Bullhead ones are generally used in places where a composite weld or even a set of junction fishplates would be a more economic ...
... down is relatively crude; double sided tape under the bits of wood, and another bit of wood held across the tops of the rails with one hand. It's the same idea as the Portisdown V crossing jig; in fact I have one of these, one of a number he did for the 3mm Society. Apart from the fact that it only offers 4 whole-number crossings, I find the Portisdown jig has one other problem; the crossing join is a fair way from the jig itself. Using the code 60 bullhead rail it's intended for, it's possible for the rail to flex between jig and tip, and you have to be very careful it doesn't. Nigel posted: 17 Nov 2015 07:57 from: Jim Guthrie Jubilee42 wrote: Hayfield wrote: Richard I know a lot of folk use those things, but abrasives do ware away the plating on the tips which then start corroding, don't ask how I know Try cleaning the tip by re-tinning it. Get some scrap metal, flood it with flux and have some ...
... different forum discussing the construction of the layout, I'll keep this thread mainly for the specific topic of the track work. The challenge is described in some detail in the first post of the topic, together with a wonderful link to a youtube film that has a signalman from the Barnstaple- Exeter line discussing the state of the Railways in the early 1980's. The layout construction discussion can be located here: http://www.rmweb.co.uk/forum/viewtopic.php?t =6010 For actual construction I'm planning to use PCB strips and bullhead rail. It's my first P4 layout and I've been asked elsewhere why I'm not using the P4 track co kits. The answer is straightforward- it's not an LNER layout so having that level of fidelity is pointless (if you'll excuse the pun). I've also noticed that I never notice solder blob chairs at exhibitions, so I'm fine with this method of construction. The method of construction will also (I hope) stand the rigors of being dragged on a 747 from the US where I live to wherever scaleforum is ...
... topic: 2497 blunt nose marker posted: 31 Jul 2014 11:17 from: Phil O Hi Martin. Would it be possible to add a line on the template to assist in locating the position of the blunt nose, preferably a different colour, as I am struggling with the assembly of some flat bottom railed turnouts. A first for me, up til now I have only built bullhead turnouts. Thanks Phil posted: 31 Jul 2014 12:00 from: Martin Wynne Phil O wrote: Would it be possible to add a line on the template to assist in locating the position of the blunt nose, preferably a different colour, as I am struggling with the assembly of some flat bottom railed turnouts. A first for me, up til now I have only built bullhead turnouts. Hi Phil, Templot already marks the blunt nose on the vee, and the Fine Point (FP) gauge intersection: 2_160721_340000000.png What additional line did you have in mind? For flat-bottom vees the blunt nose is 5/8" wide and ...
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