RMweb Gold Steve Hewitt Posted May 22, 2017 Author RMweb Gold Share Posted May 22, 2017 The Loop Starter..... Signal 1-17 (Box 1, lever 17) has been completed: The lenses on this signal have also been "Glazed" with Humbrol "ClearFix", coloured with Glass Paint as in the previous post: Clear road now to the Platform 2 Starter - an LMS "Restricted Height" signal will be next...... Steve. 7 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted May 26, 2017 Author RMweb Gold Share Posted May 26, 2017 Keswick Platform 2 Starter - an LMS Restricted Height signal............ First a couple of pics of the prototype: and this is the schematic drawing I've prepared to guide my build: At this stage I called for assistance. First Jon Fitness supplied copies of BR Drawings for this signal type. They were a great help in showing all the components which make up this unusual item. I'd only managed to get an outline idea of the thing from my copy of "Warburton". The thought of scratch building it all in brass was quite daunting, so I discussed it with Les Green who has made so many items for me. We decided to give it a go in 3D printed plastic from Shapeways. Les produced the necessary drawings and very soon we had a couple of samples to admire........ Details later......... Steve. 5 Link to post Share on other sites More sharing options...
RMweb Premium St Enodoc Posted May 26, 2017 RMweb Premium Share Posted May 26, 2017 Keswick Platform 2 Starter - an LMS Restricted Height signal............ First a couple of pics of the prototype: Sig 1-15.jpg Sig 1-15 (2).jpg and this is the schematic drawing I've prepared to guide my build: Doc jpg.jpg At this stage I called for assistance. First Jon Fitness supplied copies of BR Drawings for this signal type. They were a great help in showing all the components which make up this unusual item. I'd only managed to get an outline idea of the thing from my copy of "Warburton". The thought of scratch building it all in brass was quite daunting, so I discussed it with Les Green who has made so many items for me. We decided to give it a go in 3D printed plastic from Shapeways. Les produced the necessary drawings and very soon we had a couple of samples to admire........ Details later......... Steve. I do like these signals. They were common at the southern end of the Midland main line where I grew up. Link to post Share on other sites More sharing options...
LNERGE Posted May 26, 2017 Share Posted May 26, 2017 (edited) Here's one i found earlier.. Edit to add.. I have had no part in anything to do with this signal. I just took the photo <G> Edited May 26, 2017 by LNERGE 5 Link to post Share on other sites More sharing options...
RMweb Gold beast66606 Posted May 26, 2017 RMweb Gold Share Posted May 26, 2017 A couple from Atlantic Dock Junction - unfortunately scanned years ago and these are the best scans I currently have 6 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted May 27, 2017 Author RMweb Gold Share Posted May 27, 2017 The 3D design..... The main features of the prototype signal are made from angle section steel, attached directly to the top of a standard round post with finial. The steel angle has been formed to a right angle, with the "web" on the outside. In real life that would be quite a feat with lots of heat and heavy forming tools. To avoid much anguish and gnashing of teeth working with brass, Les and I thought a 3D printed version would be feasible. Here is an early version of Les's design, showing the general arrangement of things: The 3D print will include the top section of the Main Post, all the bracket work, with the bearings for the Signal pivot and the two angle cranks. It will also include a route for the lighting fibre into the centre of the post via a curved hole of 0.6mm dia widening to 1.0mm dia once the vertical run has been reached. First print sample to follow shortly....... Steve. 3 Link to post Share on other sites More sharing options...
LNERGE Posted May 28, 2017 Share Posted May 28, 2017 The only comment i can make is in my photo of the ex Gamlingay signal the backshade appears to be mounted inboard of the framework. Putting it outside is a reasonable compromise as i'm sure it would be too fiddly to fit plus some prototype backshades could be fitted in two parts. Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted May 28, 2017 Author RMweb Gold Share Posted May 28, 2017 Here's one i found earlier.. Edit to add.. I have had no part in anything to do with this signal. I just took the photo <G> August 2007 053.jpg August 2007 044.jpg A couple from Atlantic Dock Junction - unfortunately scanned years ago and these are the best scans I currently have das05322.jpg das05323.jpg The only comment i can make is in my photo of the ex Gamlingay signal the backshade appears to be mounted inboard of the framework. Putting it outside is a reasonable compromise as i'm sure it would be too fiddly to fit plus some prototype backshades could be fitted in two parts. Thanks very much for both of your photos, always helpful. The Blinder has to be a little distance behind the lamp case on my models, to allow the fibre optic to exit the case and take its route down towards the structure. Steve. Link to post Share on other sites More sharing options...
RMweb Premium 31A Posted May 29, 2017 RMweb Premium Share Posted May 29, 2017 The only comment i can make is in my photo of the ex Gamlingay signal the backshade appears to be mounted inboard of the framework. Putting it outside is a reasonable compromise as i'm sure it would be too fiddly to fit plus some prototype backshades could be fitted in two parts. Whereabouts was that signal at Gamlingay, then? I grew up there but don't remember it - it's a very long time since the railway closed, though! Sorry, Steve ... Link to post Share on other sites More sharing options...
LNERGE Posted May 30, 2017 Share Posted May 30, 2017 Whereabouts was that signal at Gamlingay, then? I grew up there but don't remember it - it's a very long time since the railway closed, though! Sorry, Steve ... The only picture i can find is on Ebay unfortunately.... http://www.ebay.co.uk/itm/Gamlingay-Railway-Station-Photo-Potton-Old-North-Road-Bedford-Line-2-/252005676726 Link to post Share on other sites More sharing options...
RMweb Premium 31A Posted May 30, 2017 RMweb Premium Share Posted May 30, 2017 Thank you, nice picture! I don't recall that signal, perhaps it was taken away quite soon after the line was 'de-signalled'? Its lamp may be in my fireplace now! We found an old signal lamp on the lineside in that area a couple of years after the track was lifted ... 1 Link to post Share on other sites More sharing options...
73c Posted May 30, 2017 Share Posted May 30, 2017 So that's not you in the photo then Steve? Link to post Share on other sites More sharing options...
RMweb Premium 31A Posted May 30, 2017 RMweb Premium Share Posted May 30, 2017 Potentially, but I don't think so! Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted May 31, 2017 Author RMweb Gold Share Posted May 31, 2017 Here's the 3D print..... The two largest elements, the Base and the Right Hand support are just there to ensure the printed signal has some strength, a bit like a sprue in a casting. They will be removed before use. And from the other side: The cranks, arm etc. in place to see how it will look: Supporting bits removed and coat of paint to bring out the detail a bit: I certainly didn't fancy doing all that in Brass. Steve. 10 Link to post Share on other sites More sharing options...
Veen Posted May 31, 2017 Share Posted May 31, 2017 Brilliant as always Steve. Thanks for this. Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 2, 2017 Author RMweb Gold Share Posted June 2, 2017 The main post.... The restricted height signals stand on top of a standard Round Post. The 3D print is designed to fit directly into the 3/32in (2.4mm) dia lower section of a standard post, where the height is very restricted. In the case of this Keswick signal, the height is not so restricted, and the Standard Post is tall enough to require the 5/64in (2.0mm) dia section as seen in this picture: The top of the post is extended with a 1mm dia section of tube onto which the 3D printed section will locate directly. The tube has a bore of 0.55mm dia through which the Fibre Optic for the lighting will pass. More soon, Steve. 8 Link to post Share on other sites More sharing options...
Jon Fitness Posted June 3, 2017 Share Posted June 3, 2017 This looks an excellent development Steve, really looking forward to seeing the end result with this one! Cheers JF Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 4, 2017 Author RMweb Gold Share Posted June 4, 2017 The Video..... Steve. This signal has now been installed on the layout..... Thanks John for taking the video and allowing me to publish it. Steve. 7 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 6, 2017 Author RMweb Gold Share Posted June 6, 2017 This looks an excellent development Steve, really looking forward to seeing the end result with this one! Cheers JF Hope I haven't kept you waiting too long...... Here's the completed Platform 2 Starter, Signal 1-15 : Because it's Platform Mounted, it needs very deep foundations: Some closer shots of the working bits: Just the video of this one to put together, shortly I hope. And then off we go for a couple of LNWR Ground Signals next............ Steve. 7 Link to post Share on other sites More sharing options...
Jon Fitness Posted June 6, 2017 Share Posted June 6, 2017 Looks the business Steve! Really captured the look of the real thing. I keep having to remind myself they're 4mm scale. Cheers JF Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 9, 2017 Author RMweb Gold Share Posted June 9, 2017 Here's the little video: Steve. 5 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 16, 2017 Author RMweb Gold Share Posted June 16, 2017 A couple of LNWR Ground Signals..... Not a great deal to see with these tiny signals. All the static parts are in a 3D Print which Les Green developed with me for the Lime Street project. This is the whole signal, sitting on its foundations, with its Guide Tube (1/16in dia brass) fitted. The whole is then glued into a 5/16th in. brass tube which will locate the signal in the baseboard, and align the servo motor underneath: You can see a bit more when its cleaned and sprayed with Halford's best: Once fully hardened, its gets a coat of Black prior to installation of the lighting and the moving parts: Then its on to the Platform 3 Starter - a Lattice Post Bracket with a single doll, cantilevered out over the Goods Loop...... Steve. 10 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 18, 2017 Author RMweb Gold Share Posted June 18, 2017 And another little video........ Steve. 6 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 24, 2017 Author RMweb Gold Share Posted June 24, 2017 Keswick Platform 3 Starter - a Lattice Post Bracket with a single doll, cantilevered out over the Goods Loop...... First the prototype: And the schematic drawing to check proportions etc: More soon.... Steve. 7 Link to post Share on other sites More sharing options...
RMweb Gold Steve Hewitt Posted June 27, 2017 Author RMweb Gold Share Posted June 27, 2017 And the static parts assembled: Sorry, I didn't take any process photos.... A good clean and polish before the Paintshop.... Steve. 6 Link to post Share on other sites More sharing options...
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