Daniel W Posted June 20, 2020 Share Posted June 20, 2020 Is that an LNER Iron Ore Hopper next to the palvan, Mike? Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted June 20, 2020 Author RMweb Premium Share Posted June 20, 2020 I don't know what the origin of that is, came in a job lot of wagons for Carlisle. At the moment it's just used a test vehicle, as is the K's Palvan which is a DG coupling test vehicle (not much use for anything else, it's far too heavy and stiff running to put in a train). 1 Link to post Share on other sites More sharing options...
Daniel W Posted June 20, 2020 Share Posted June 20, 2020 Fair enough, Mike. It piqued my curiousity since i've been doing some research into Iron Ore hoppers recently. Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted June 20, 2020 Author RMweb Premium Share Posted June 20, 2020 It's a nice model, looks as if it was made from an etched kit. 1 Link to post Share on other sites More sharing options...
Down_Under Posted June 20, 2020 Share Posted June 20, 2020 7 hours ago, Daniel W said: Is that an LNER Iron Ore Hopper next to the palvan, Mike? looks like the old Jidenco kit of the 25t LNER or hopper Link to post Share on other sites More sharing options...
Daniel W Posted June 20, 2020 Share Posted June 20, 2020 11 minutes ago, Down_Under said: looks like the old Jidenco kit of the 25t LNER or hopper Thanks for the info. I wasn't aware that Jidenco did a kit for one of those. Link to post Share on other sites More sharing options...
RMweb Premium Barry O Posted June 20, 2020 RMweb Premium Share Posted June 20, 2020 (edited) It is a Jidenco kit.. I have two from the same batch. The solebars are in the wrong place and my two may be nearly at the too of roundtuit work Baz Edited June 25, 2020 by Barry O Link to post Share on other sites More sharing options...
RMweb Premium Barry O Posted June 25, 2020 RMweb Premium Share Posted June 25, 2020 anyone remember the "Super" 40 Mike has built for Carlisle as seen earlier on the thread? Well it has a soundchip (Legomabiffo Loksound V5) and has been weathered. "not too dirty" was the weathering details. As it happens in Michael Welches book on "Diesels on the London Midland" I found a photo of a close relative .. D335. So .. On close inspection of the photo in the book someone had cleaned the yellow panel..a tiny bit of cleaned dirt needs to be applied to the panels away from the central door... It is very heavy!.. Crushed my usual weathering loco holder flat... Baz 11 Link to post Share on other sites More sharing options...
rope runner Posted June 25, 2020 Share Posted June 25, 2020 On 20/06/2020 at 23:28, Down_Under said: looks like the old Jidenco kit of the 25t LNER or hopper Yes, I think I've said before James that these go together easily enough but sadly they're not an accurate representation of the prototype. I've got two built as intended and one which has had lots of changes to bring it closer to the prototype, with limited success it has to be said. Paul A. Link to post Share on other sites More sharing options...
RMweb Premium Popular Post Michael Edge Posted June 27, 2020 Author RMweb Premium Popular Post Share Posted June 27, 2020 This is what the Fowler tender in the test track photo belongs to. It's a Crab I built from the Wills kit back in 1973, it's been out of use for many years waiting for new frames but now it's back in traffic again. I really ought to backdate it a bit for Herculaneum and it should have a coal rail tender but I think I'll leave it as it is for now. This is what came out of it, only the pony wheels, slidebar steps and balance weights have been recovered. This was very much state of the art back then, scratchbuilt with thin brass frames, coupling rods and slidebars filed from rail and all the motion hand cut. Hamblings wheels because at that time Romford didn't produce anything between 21mm and 24mm diameter and for some unknown reason I set in in full back gear. The K's Mk2 motor was considered a good option then as well. New frames and motion are all etched now, although I forgot to do anything for the valve spindle guide and this is cobbled up from something else - this time it's in mid gear though. New cylinders (photo reminds me I still have to line them) with drains fitted this time, sanding gear and brakes - would have been unusual back then but routine now. Romford/Markits wheels this time and it's partly compensated (between 1st and 2nd driving axles), the etch allowed for full compensation but it's much easier to use the bevel gears with a fixed axle. This is more of an innovation now, an n20 motor and gearbox driving the trailing axle through bevel gears - paint on the motor shows that I forgot to mask it before spraying primer but it doesn't seem to have affected it. The gearbox frame is simply soldered into the frames. Bags of power from this and I can fill the huge hole in the firebox where the K's motor went with lead, freeing up the cab means that it now has a firebox back and reverser. Press studs connect to the original tender pickups. 42864 has been out of use for so long that it hasn't been weathered either but that will be remedied. 24 1 Link to post Share on other sites More sharing options...
PenrithBeacon Posted June 27, 2020 Share Posted June 27, 2020 Interesting that you are using an N20 motor on a medium sized locomotive. I'm currently making up a Comet chassis for a Jinty but I chickened out and used a Mashima in a HL gearbox because I thought a 1:60 N20 would have been too small. I'd be interested to know how this installation works out, please. Cheers 1 Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted June 27, 2020 Author RMweb Premium Share Posted June 27, 2020 I've got one of these running in a 7mm Hunslet 05, with a fair bit of weight in it and it can still easily spin the wheels. More than enough power for a Crab, it's the very low ratio gearbox (I've not used anything else although others are available), maximum speed looks about right on the layout but I haven't timed it. The first one I used has been running (with 1:1 skew gears) in a Hunslet 14" on Herculaneum Dock for some years now without any problems. I've got a big bag full of them, might see them in all sorts of locos yet. 2 1 4 Link to post Share on other sites More sharing options...
cheesysmith Posted June 28, 2020 Share Posted June 28, 2020 Question, these are powerful motors for their size (having some myself to play with), but how much of the extra power you have at the rails are from the motor and how much from not using worm drive? I think the better performance my be coming from the use of the bevel gears instead. Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted June 28, 2020 Author RMweb Premium Share Posted June 28, 2020 That's a good question, worm gears aren't very efficient but the skew gears I used in the Hunslet 14" are just as good. The spur drive box takes the output shaft down to a maximum speed that is OK for most locos (varies with wheel diameter of course) - all it needs is a 1:1 final drive. The bevel gears are a bit quieter than the skew gears though so might be a bit more efficient. However I only have one set of the skew gears left and I don't know where they came from to get any more. I find the power output amazing and they don't take much current either. 3 Link to post Share on other sites More sharing options...
AlfaZagato Posted June 29, 2020 Share Posted June 29, 2020 As you're in the industry, has there been any discussion with someone like High-Level about producing a bevel set for the N20 at a commercial level? I'd imagine it would be a bit more expensive than the bag-o-gears that need cutting and boring to work right, but cheaper than the 3D prints. 2 1 Link to post Share on other sites More sharing options...
Stanley Melrose Posted June 29, 2020 Share Posted June 29, 2020 You could always throw caution to the wind and buy these <https://www.ebay.com/itm/10pcs-plastic-bevel-gear-white-gear-helical-gear-for-DIY-reduction-gear-box/132760566338?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D225086%26meid%3D4f49a59a6b72429a881d1a6dcde0e803%26pid%3D100005%26rk%3D2%26rkt%3D2%26mehot%3Dpf%26sd%3D152726693943%26itm%3D132760566338%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithBBEV2bDemotion%26brand%3DUnbranded&_trksid=p2047675.c100005.m1851> HTH Stan 1 Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted June 29, 2020 Author RMweb Premium Share Posted June 29, 2020 That's more or less what I have used - bevel/helical gear is a spectacular piece of nonsense - helical = skew gears as I have already described, bevel is what you see there.the crown wheels lower down are much more interesting though, I've been trying to find a source of these, slightly less efficient than bevels but much more forgiving to mesh. 1 Link to post Share on other sites More sharing options...
FoxUnpopuli Posted June 29, 2020 Share Posted June 29, 2020 https://www.ebay.co.uk/usr/timelyrain001 This vendor has a variety of plastic 0.5Mod crown gears... and also a nice range of geared N20 units. 1 Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted July 13, 2020 Author RMweb Premium Share Posted July 13, 2020 The last of these workbench photos provoked a bit of interest so here's an update as of this morning. Three pictures this time, shows just about everything this time. The 06 is just overspill from the kit display model boxes, parked here, not being worked on. The two 00 wagons are for DG coupling testing, on the left just visible is the spring and scale used as a crude dynamometer rig. The stop blocks (nails) are good for provoking panic in visitors. Note the ancient Triang resistance controller and ammeter - the cut out is disabled on this so I can whack full current out which is excellent for detecting short circuits (nice big visible sparks). There is a proper controller as well... the DIN plug in the centre is for a proper modern controller, at the left switches connect the power to various parts of the test track - varying from O gauge to a section of Hornby Dublo three rail at the back, this more for the sake of nostalgia than any practical use. In the foreground things have moved on a bit, two locos ready for delivery - next job underway is at the right, TT this time, after that it will be back to the P4 Kirtley 0-4-4T. the Stanier 3P has had its chimney temporarily removed to make a new mould and the LSW C14 is still here. From the far end, Triang TT track nearest with a couple of test wagon underframes. The Kitmaster 08 has been parked here for many years, I think it was part of some kit development work at one time, the 4F frame is a very poor runner and will probably be stripped for its Portescap motor eventually. Coupling height gauges live here, the steel block is for DGs and the other is a Kadee mounted at 4mm scale UK height. 11 Link to post Share on other sites More sharing options...
RMweb Premium Popular Post Michael Edge Posted July 13, 2020 Author RMweb Premium Popular Post Share Posted July 13, 2020 Photo of the last two completed jobs. 47003 built from one of our kits in P4, this is the one which worked in Swansea, unusually it had a right facing crest, the electrification flashes must have been left over from its earlier home. View from underneath shows that this is possible in P4 with Gibson wheels without any cheating in cylinder position but clearance behind the crosshead is minimal. The Craftsman 02 is a very good kit as I've said before but it is complicated to paint, the Yorkshire plates aren't in the kit but we can supply them. The engine air intakes are our mouldings as well, the white metal ones in the kit are a bit weedy. 32 1 5 Link to post Share on other sites More sharing options...
RMweb Premium Barry O Posted July 13, 2020 RMweb Premium Share Posted July 13, 2020 They are far too clean! (but very nice!) Baz 1 1 Link to post Share on other sites More sharing options...
Anadin Dogwalker Posted July 13, 2020 Share Posted July 13, 2020 Hope I didn't imagine it, but what's happening with the single arm Faiveley pantograph please? Neill Horton Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted July 13, 2020 Author RMweb Premium Share Posted July 13, 2020 8 hours ago, Barry O said: They are far too clean! (but very nice!) Baz Sorry but I don't think you'll get to weather these two! 1 1 Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted July 13, 2020 Author RMweb Premium Share Posted July 13, 2020 5 hours ago, Anadin Dogwalker said: Hope I didn't imagine it, but what's happening with the single arm Faiveley pantograph please? Neill Horton No, you're not imagining it, first trials went very well but I'm waiting for a second test etch to make sure before it goes into production. 1 Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted July 27, 2020 Author RMweb Premium Share Posted July 27, 2020 Just arrived from PPD, this test etch for an idea I had some time ago. These are combination draw hooks and DG coupling pegs, etched in .015" n/s. This is the sort of job which prompted the idea, DG couplings are very difficult to fit to deep buffer beams but there is always a drawhook slot at consistent height. The separate L shaped etch forms the latch, pivoted on a pin - this is a bit more like a Dingham latch than a DG one but it works well so far. Without the latch the coupling is fairly unobtrusive - even more so painted black - and it's still a conventional drawhook (there's a hole in it as well for a 3 link or screw coupling). I thought at first that it would mean propelling with the buffers (not good in 00 gauge) but it turns out that it pushes against the DG buffer on the vehicle it is coupled to. I've also fitted them to the C14 4-4-2T, they work well on the test track, I've not tried them on the layout yet. We have a good number of locos without leading couplings on the grounds that they are rather unsightly and rarely used - but sometimes essential, e.g. the Wentworth Junction bankers have to have one - I think these will be a much better option. 11 2 Link to post Share on other sites More sharing options...
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