RMweb Premium Alex Duckworth Posted November 27, 2011 RMweb Premium Share Posted November 27, 2011 As I've mostly been building 4mm NG items for the past few weeks, I thought that I'd post some news about a 2mm loco that I've been working on. The loco is being built from one of the reduced size etches from the Judith Edge range, very nice it is too. The 4mm version is designed for either a Black beetle or Tenshodo motor bogie so for 2mm you have to come up with some form of power unit of your own devising, although for N gauge it is possible that one of the small Japanese chassis might fit. After a bit of thought and a touch of borrowing from the small chassis designs on the Nigel Lawton webpage I came up with a kit of parts :- which when assembled gives you this (wheelbase 13mm). the bogie ran very well after a bit of gear mesh adjustment, so a bit of work on the body and a chance to bluetack a body side onto the baseplate structure and have a rough check of clearances. so far, so good! Alex. Link to post Share on other sites More sharing options...
2mm Andy Posted November 28, 2011 Share Posted November 28, 2011 That's looking very nice Alex. I have one of the NER EF1 (Shildon-Newport) Bo-Bo etches to build at some point (as well as one of the Raven 2-Co-2 express passenger loco etches ). Are you intending to motorize the second bogie as well? What sort of reduction does the gearing give you? Andy Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted November 28, 2011 RMweb Premium Share Posted November 28, 2011 That looks very neat, nice to see the 2mm etches being built. Michael & Judith Edge Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted November 28, 2011 Author RMweb Premium Share Posted November 28, 2011 Thank you Michael and Andy. I'm not sure how the gearing works out, first stage is 7 tooth driving 30 tooth, the second stage is 14:1 - I was really just using whatever I could find that would fit. The kit of parts photo is of the second bogie, I'm hopeful that one will work OK because an unpowered end will leave lots of room for a DCC chip and stayalive, and also because I have two of these kits and it will be great if I don't have to build four powered bogies. Alex. Link to post Share on other sites More sharing options...
RMweb Gold bcnPete Posted November 28, 2011 RMweb Gold Share Posted November 28, 2011 That's looking very nice Alex... Link to post Share on other sites More sharing options...
richbrummitt Posted November 28, 2011 Share Posted November 28, 2011 I'm not sure how the gearing works out, first stage is 7 tooth driving 30 tooth, the second stage is 14:1 14*30/7 = 60:1 Link to post Share on other sites More sharing options...
RMweb Gold Worsdell forever Posted November 28, 2011 RMweb Gold Share Posted November 28, 2011 You can't have too many ES1s*. Keep up the good work. *OK, so three would technically be too many, but you know what I mean... Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted December 1, 2011 Author RMweb Premium Share Posted December 1, 2011 Thanks Pete and Paul, plus Rich for working out the gearing. I've managed to find time for a short bench session so a little more progress to show. Alex. Link to post Share on other sites More sharing options...
Alan76 Posted December 3, 2011 Share Posted December 3, 2011 Looking serious nice Alex.... Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted December 15, 2011 Author RMweb Premium Share Posted December 15, 2011 Thanks Alan. A bit more done, bogie mountings finished, ride heights fixed. Alex. Link to post Share on other sites More sharing options...
richbrummitt Posted December 16, 2011 Share Posted December 16, 2011 I do not believe that my eyes deceive me: are you intending to run that spur gear pair with the input shaft inclined with respect to the output shaft? Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted December 17, 2011 Author RMweb Premium Share Posted December 17, 2011 Hi Rich, I think that they do, a bit. Looks a bit hairy photographed from that angle, doesn't it? In fact the motor shaft is about 4 - 5 degrees off the horizontal, which in my experience nylon gears will cope with quite well, if carefully meshed. The motor unit runs very well, both on the test track and on my rolling road, but I am gradually moving toward motorizing both bogies. I've been running a two axle unit about the same size as the ES1 bogie with a friction drive first stage and becoming more and more impressed with it's smoothness, so I may well make a move in that direction. Link to post Share on other sites More sharing options...
richbrummitt Posted December 18, 2011 Share Posted December 18, 2011 I also like the look of the friction drive. I cannot remember where I saw one on here last but they seem to have an advantage over gears in that you can have a very small primary wheel when compared with a gear and therefore get a higher reduction in the same space. Link to post Share on other sites More sharing options...
Tin Turtle Posted January 3, 2012 Share Posted January 3, 2012 Brilliant, I've got the ES1 and EF1 etches, had only considered building the ES1 as a static and motorising the EF1 but may be convinced otherwise. The ES1 has been one of my favourite locomotives for a long time, great looking design, interesting history, Edwardian, and more importantly North Eastern Railway Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted January 5, 2012 Author RMweb Premium Share Posted January 5, 2012 Thank you all for the comments. Following a long and enjoyable Christmas break I've been back in the workshop today and made a bit more progress, particularly on the body. Link to post Share on other sites More sharing options...
Paul-2mm Posted January 5, 2012 Share Posted January 5, 2012 You're making a great job of that. Where abouts did you source the nylon gears? Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted January 5, 2012 Author RMweb Premium Share Posted January 5, 2012 Thanks Paul, the gears come from an internet shop called Mikroantriebe KKPMO, try www.shop.kkpmo.com. I've dealt with them for a while now and always found them very reliable. Be warned though - the website is full of small motors and gearboxes, very addictive. Alex. Link to post Share on other sites More sharing options...
Guest Natalie Graham Posted January 5, 2012 Share Posted January 5, 2012 That is looking good, but I think you need to rethink the overhead power collectors. Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted January 7, 2012 Author RMweb Premium Share Posted January 7, 2012 I was trying for the dodgem car look. Link to post Share on other sites More sharing options...
RMweb Gold bcnPete Posted January 7, 2012 RMweb Gold Share Posted January 7, 2012 I was trying for the dodgem car look. I hope you get more than three minutes of fun from it though. Its looking rather nice now Alex...great work... Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 13, 2012 RMweb Premium Share Posted January 13, 2012 This is looking great Alex. I've got the 4mm version which is still not finished and may never be now I've shifted my Tyne Yard to Tyneside! Hope you get it working with a panto. I have a very soft spot for these loco's having seen both during visits to the area in 1960/1/2. Phil @ 36E Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted February 6, 2012 Author RMweb Premium Share Posted February 6, 2012 Thanks for all the comments, it's been a while since my last update - work has however progressed on the model albeit slowly. Latest news is that the chassis unit is built and wired (DC only for the moment) and runs well with a little weight added, the next job is to get the body detailed. It's not easy to take pics. of something this size in matt black primer but here is an attempt, at least. I've been looking at Pete's latest Kyle postings and I'm now thinking about a boxfile type Trafalgar Yard setting for it. Alex. Link to post Share on other sites More sharing options...
RMweb Premium Michael Edge Posted February 6, 2012 RMweb Premium Share Posted February 6, 2012 Have you made all the fittings or have you managed to obtain some of them? If they are commercially available we can put a mention in the instructions. Michael Edge Link to post Share on other sites More sharing options...
RMweb Premium nick_bastable Posted February 6, 2012 RMweb Premium Share Posted February 6, 2012 Alex looking very nice where did you find the initial gear set from? Link to post Share on other sites More sharing options...
RMweb Premium Alex Duckworth Posted February 6, 2012 Author RMweb Premium Share Posted February 6, 2012 Hello Michael, all the fittings are made from cut up tender axleboxes and springs, alloy tube, plasticard and odd bits of leftover etch, I couldn't find anything useable on the market. Nick, the first stage plastic gears come from an internet shop called Mikroantriebe KKPMO, try www.shop.kkpmo.com. The second stage is two Tenshodo worms and gears on a ballraced layshaft. Alex. Link to post Share on other sites More sharing options...
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