LEGO Train 12 Volts Posted December 14, 2014 Union Pacific 6900 DDA40X Hi Everyone, after months of hard work I can show my last creation the UP6900! Some decals aren't 100% ok but in the upcoming Christmas holidays I will dedicate myself to perfecting the work replacing the white front number with a plaque on a black background. The DDA40X was a 6,600 hp Diesel locomotive built for the Union Pacific Railroad. The DDA40X uses two diesel engines and is the most powerful single-unit diesel locomotive ever built! I wanted to post this model urgently to guarantee the originality of my creation just in time, before Barduck and his amazing model! (Quite honestly my creation is 7 studs wide and not 8 studs, so there will be two distinct works). The hardest part for the realization of this model was the cabin since there isn't a lego windscreen ready for the 7 studs format; even the inclusion of the IR receiver and battery wasn't easy this time. Inside the main body there are many electrical wires welded for the management of the ON/OFF switches of the two motros and the lights. The ventilation grilles have been another design problem that took me different planning steps ...but in the end under the Christmas tree I can show this unforgettable American icon. Soon I will post a video to show how this locomotive (70 studs long) runs on lego standard tracks with switches and tight corners. In the months ahead I will fulfill an Union Pacific convoy as Nebraska and Barduck have done! Stay tuned! Share this post Link to post Share on other sites
dr_spock Posted December 14, 2014 Sweet! I like how you hid the switches behind the battery doors. Share this post Link to post Share on other sites
Stefaneris Posted December 14, 2014 Great locomotive and I guess that 7 wide brings some more difficulties than 6 or 8 wide since it is an uneven number and might require a lot of jumper plates (at least that's my experience. The windscreen also looks great. How many cars can this locomotive pull? Share this post Link to post Share on other sites
Zerobricks Posted December 14, 2014 Thats really massive! What motors did you use for it? Share this post Link to post Share on other sites
Barduck Posted December 14, 2014 Nice one, there's even a few details that I completely missed on mine. Will still be a week or 2 (I think) before mine is finished, still a lot off parts that are on their way. Shame we live so far from eachother (though the Americans would offcourse think this distance trivial), else we could have set them next to eachother and compare the scale difference. The windscreen is my favourite part I think, though there's plenty of things to see and drool on Share this post Link to post Share on other sites
Steph 104th Posted December 14, 2014 She's beautiful, I can't wait for the video to see how this beast corners. Share this post Link to post Share on other sites
LEGO Train 12 Volts Posted December 14, 2014 (edited) Sweet! I like how you hid the switches behind the battery doors. Thanks Dr_Spock you're always welcome! Great locomotive and I guess that 7 wide brings some more difficulties than 6 or 8 wide since it is an uneven number and might require a lot of jumper plates (at least that's my experience. The windscreen also looks great. How many cars can this locomotive pull? I'm planning to create six wagons 44 studs long, the locomotive is fast and powerfull for now ...but I will see wagon after wagon Thats really massive! What motors did you use for it? Two standard PF train motors Nice one, there's even a few details that I completely missed on mine. Will still be a week or 2 (I think) before mine is finished, still a lot off parts that are on their way. Shame we live so far from eachother (though the Americans would offcourse think this distance trivial), else we could have set them next to eachother and compare the scale difference. The windscreen is my favourite part I think, though there's plenty of things to see and drool on Hi Barduck, it's nice hear from you and I'm surprise how we are both working on the same project again (was the Triplex last time) ...now I'm learning from you and your flickr pages how to made some good UP rolling stock for this huge diesel locomotive. I'm working also on a convoy for my Big Boy. About living so far I agree with you ...it would be an honour meet you and talking about our hobby and train creations! Now I'm waiting for your PROJECT X 8 studs wide ...a real monster with many amazing solution! :thumbup: She's beautiful, I can't wait for the video to see how this beast corners. Thanks Steph, I will post a video for Christmas days! Edited December 14, 2014 by LEGO Train 12 Volts Share this post Link to post Share on other sites
Dread Pirate Rob Posted December 15, 2014 I like the way your 'compromises' look better than my 'design features'. Brilliant all the way and even moreso as it is in 7 wide! Share this post Link to post Share on other sites
Pop Bumper Pete Posted December 15, 2014 looks great Share this post Link to post Share on other sites
zephyr1934 Posted December 15, 2014 Oh wow, another beautiful build. Very well done with lots of clever concealment to hide the PF, which in itself is impressive. I like all of the details built into the MOC, especially the attention you paid to the cab. I do hope you have wide radius curves either already in hand or coming soon. This engine is too nice for standard lego curves (all the more impressive that it can negotiate them without problems) Nice one, there's even a few details that I completely missed on mine. Will still be a week or 2 (I think) before mine is finished, still a lot off parts that are on their way. Shame we live so far from eachother (though the Americans would offcourse think this distance trivial), else we could have set them next to eachother and compare the scale difference. The windscreen is my favourite part I think, though there's plenty of things to see and drool on Given the size of your two respective builds, I would think they would almost be touching one another already (grin). Share this post Link to post Share on other sites
Mariano Posted December 15, 2014 Awesome. Good job. Share this post Link to post Share on other sites
kevin8 Posted December 15, 2014 Wonderful piece of art... Share this post Link to post Share on other sites
King Aragorn Posted December 15, 2014 Fantastic! I can't wait to see it run on a standard lego circuit! Another great work LT12V! :thumbup: Share this post Link to post Share on other sites
Godzilla91210 Posted December 15, 2014 (edited) OMG, its a DD bogie motor!!! In France CC bogie its maximum motorisation! Good Job! Edited December 15, 2014 by Godzilla91210 Share this post Link to post Share on other sites
LEGO Train 12 Volts Posted December 15, 2014 I like the way your 'compromises' look better than my 'design features'. Brilliant all the way and even moreso as it is in 7 wide! Thanks Dread Pirate Rob ...but have you too a similar model? Given the size of your two respective builds, I would think they would almost be touching one another already (grin). LOL Thanks for your kind words Zephyr ...you have to know that very often I look at your last wonderful creation to get ideas for my UP convoy! Thanks also to Pop Bumper Pete, Mariano, Kevin8, King Aragorn and Godzilla for your comments! Share this post Link to post Share on other sites
Heppeng Posted December 16, 2014 I am very very impressed. The real locomotive is impressive, and not only have you captured the look well, you have also managed to get it to work on lego track? That is some achievement! Share this post Link to post Share on other sites
detjensrobert Posted December 16, 2014 Holy COW that's huge! How did you manage to get the 4-axle bogies to work? Share this post Link to post Share on other sites
Selander Posted December 16, 2014 Holy COW that's huge! How did you manage to get the 4-axle bogies to work? I would assume wheels 1 & 4 are sliding sideways in some sort of groove. (Wheels 2&3 are the normal PF train engine) At least that's the way I'd try to do it. Impressive loco BTW !!! But it must look almost ridiculous in a 180deg std curve !(?) This is clearly a design which fits better with large radius curves. Share this post Link to post Share on other sites
lightningtiger Posted December 16, 2014 AWESOME 'LT12V' as usual from you.......Brick On ! Share this post Link to post Share on other sites
monai Posted December 16, 2014 Hi Duke Many compliments. It's really impressive I like the cure for details, as in your wonderfull BR53. Just a question about the scale: since we are talking about LEGO modellism it is not trivial going 7 or 8, what's the exact width of the original? LEGO has discrete step, I know some compromise are necessary, for that I'm working (as you know) on a BR wich will fulfill the request for a 1:38 replica. Sergio Share this post Link to post Share on other sites
Gioppa Posted December 16, 2014 Wow, is a really huge and amazing job! I love the tecnique you have used, the color and the stickers...(as usual i don't love the "extra parts") Wait to see you and your wonderful loco soon as possible, but i'm really busy with my work... Next time i also have to show you some new project, and some new loco, sure you love! Share this post Link to post Share on other sites
Dread Pirate Rob Posted December 16, 2014 Thanks Dread Pirate Rob ...but have you too a similar model? No, I would like to say I don't because of my limited brick collection, however I must say I don't because of my limited skill:) Can't wait to see more video of this remarkable build. Share this post Link to post Share on other sites
GallardoLU Posted December 16, 2014 (edited) Info on DDA40X Gauge 4 ft 8 1⁄2 in (1,435 mm) Wheelbase Between truck centers: 65 ft (19.81 m): Truck wheelbase: 17 ft 1 1⁄2 in (5.22 m) Length 98 ft 5 in (30.00 m) Width 10 ft 4 in (3.15 m)) Height cab roof: 14 ft 11 3⁄8 in (4.56 m): overall: 16 ft 4 in (4.98 m) Edited December 16, 2014 by GallardoLU Share this post Link to post Share on other sites
Barduck Posted December 16, 2014 (edited) Info on DDA40X Gauge 4 ft 8 1⁄2 in (1,435 mm) Wheelbase Between truck centers: 65 ft (19.81 m): Truck wheelbase: 17 ft 1 1⁄2 in (5.22 m) Length 98 ft 5 in (30.00 m) Width 10 ft 4 in (3.15 m)) Height cab roof: 14 ft 11 3⁄8 in (4.56 m): overall: 16 ft 4 in (4.98 m) I've been doing the math with these numbers and I come to the conclusion that my version is in scale 1/36 based on length, though to be perfectly to that scale she should be half a brick wider and 1 plate higher. Oh well, close enough Edited December 16, 2014 by Barduck Share this post Link to post Share on other sites
