bluemattersoda Posted February 20, 2015 Share Posted February 20, 2015 Hi all, it's been a while!Been busy lately, but I have some things to show! For those of you who followed my previous projects here, I'm still working on the 3D printed chassis. It's getting closer...but still not there yet. I will update progress on this thread (http://www.rmweb.co.uk/community/index.php?/topic/85901-australian-vlocity-dmu-in-n-scale-with-3d-printed-mechanisms/&do=findComment&comment=1453557) very soon now.In the meantime I've been working on an N Scale TGV Duplex. Many have asked me why not buy the (I hear excellent) Kato model. Unfortunately I am struggling to find one online, and the ones that do make it onto Ebay go for AUD500...which is way too much. Also, I know the Kato model doesn't have a front coupler, which I managed to design into this one. And finally, the Kato model is the first generation Duplex, whereas I've modelled the latest Euroduplex 2N2 which can be found running outside of France.And a shot with the coupler housing - I've installed a Tomytec Scharfenberg coupler. Only the 'dummy' non-motorised loco has the openable housing.And without the openable housing:I'm painting it over the weekend - hopefully I'll have more photos soon! And after that, it'll be back to modelling the actual Duplex carriages!Thanks! Link to post Share on other sites More sharing options...
bluemattersoda Posted February 20, 2015 Author Share Posted February 20, 2015 Thanks Dutch-master! Good point regarding the motor coupling. I admit I didn't think about that. Though having looked at the kato shinkansen sets, where the motor is in the trailer in the centre of the train set, they don't have any issue with coupling two sets together: Link to post Share on other sites More sharing options...
mikeharvey22 Posted February 21, 2015 Share Posted February 21, 2015 The Farish Blue Pullman has a power car at each end and seems not to cause problems even on 9 inch curves. I run 2 x4CEPs and 2 x class 350s this way too, with the powered cars in positions 1 and 8, and 2 and 7 respectively. However if there is a risk of seriously badly matched power cars having them together in the centre of the train would reduce the risk of trains derailing on tight curves. Link to post Share on other sites More sharing options...
Multiple identity account Posted February 21, 2015 Share Posted February 21, 2015 I have no words!!! It's a great effort and I love the results. Link to post Share on other sites More sharing options...
SpoorObjecten Posted February 21, 2015 Share Posted February 21, 2015 Wow, great 3D modelling work! Did you happen to find blueprints online? I've been looking for a good blueprint from the front of the model for ages but can only find one from the side Link to post Share on other sites More sharing options...
bluemattersoda Posted February 22, 2015 Author Share Posted February 22, 2015 Wow, great 3D modelling work! Did you happen to find blueprints online? I've been looking for a good blueprint from the front of the model for ages but can only find one from the side Hi Mitchell, I didn't use any blueprints for this - I trawled the internet for a side 'elevation' photo and a front 'elevation' photo! Using the measurements given in the graph on this website http://florent.brisou.pagesperso-orange.fr/Fiche%20TGV-Duplex.htmI worked out the scale the photos should be in and did my own line work. Link to post Share on other sites More sharing options...
SpoorObjecten Posted February 22, 2015 Share Posted February 22, 2015 That's even more impressive! Well done! Link to post Share on other sites More sharing options...
mikeharvey22 Posted February 22, 2015 Share Posted February 22, 2015 All the published drawings are ridiculously small ("Le Matériel Moteur de la SNCF" for example) or limited to single specialised TGV vehicles like the Mélusine test coach ("TGV Handbook"). The former are clearly reprints from much larger drawings many of which I used to obtain from SNCF back in the days when there was a unified rolling stock engineering office. I have plenty for Corail coaches in 1/50 (and some 1/25) scale which in conjunction with photos provided all the information I needed to reproduce accurate 1/160 coach sides. Unfortunately I have no TGV drawings. Link to post Share on other sites More sharing options...
jivebunny Posted March 6, 2015 Share Posted March 6, 2015 That's a very nice-looking model, it has to be said! I would echo the calls for the powered cars to have the removable coupler housing though (or for more flexibility, both vehicles). The few Kato sets I've seen that have been modified to run in multiple always have the powered cars coupled together in the middle of the set for better running. Remember these sets are articulated, so each bogie is subject to more complex forces than standard bogie stock. If you have double set with a power car at each end, when the leading power car momentarily loses power the trailing one suddenly finds itself pushing 18 unpowered vehicles (most of which are exerting forces on bogies shared with the neighbouring vehicle) up against the dead weight of the leading unit. It just takes one axle to lift off the rails for a split second and you have yourself a nice mess. Leading on from that, what system are you planning for the trailer bogies / couplings? I might be interested in one of these to go alongside my full-length Kato TGV-SE, Eurostar and Thalys sets JB Link to post Share on other sites More sharing options...
bluemattersoda Posted March 8, 2015 Author Share Posted March 8, 2015 That's a very nice-looking model, it has to be said! I would echo the calls for the powered cars to have the removable coupler housing though (or for more flexibility, both vehicles). The few Kato sets I've seen that have been modified to run in multiple always have the powered cars coupled together in the middle of the set for better running. Remember these sets are articulated, so each bogie is subject to more complex forces than standard bogie stock. If you have double set with a power car at each end, when the leading power car momentarily loses power the trailing one suddenly finds itself pushing 18 unpowered vehicles (most of which are exerting forces on bogies shared with the neighbouring vehicle) up against the dead weight of the leading unit. It just takes one axle to lift off the rails for a split second and you have yourself a nice mess. Leading on from that, what system are you planning for the trailer bogies / couplings? I might be interested in one of these to go alongside my full-length Kato TGV-SE, Eurostar and Thalys sets JB Hi JB, thanks for your advice! I am going to redesign the model slightly to fit the couplers on both ends I think, so stayed tuned! As for the articulated couplings, I'm working out a design to be 3D printed with the carriage chassis. The couplers for the locomotives are 3D printed as well - they can be made out in some of the above photos. Link to post Share on other sites More sharing options...
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