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Murdoch17 posted a topic in LEGO Train TechThe single track tunnel was made by my father back in 2000. I updated / extended it, made a two-track version, took off the baseplates, and put the pins in. Here are the pictures: The two tunnels. These are the basics, and you can modify them however you want, such as hiding them under green plates or BURPs & LURPs. Double track, with the connecting pins. Single track, also with some pins. NOTE: Connecting the tunnels will only work in this way or some variation of this type. For example, here is a picture of what can be done. Notice the one track section in front of the tunnels? (In the case of single to double tunnels , four should be used.) That is to make sure if your engine overhangs, it will swing clear. EDITED 9/5/21: added photos back to the post. I finally found them on my Flickr from 2012.. The file, however, is lost to time.
Murdoch17 posted a topic in LEGO Train TechThis is a set 76057 (Spider-Man: Web Warriors Ultimate Bridge Battle) inspired model in single track train bridge form. It can be easily extended to make a higher or shorter / longer bridge, depending on your needs, but as it stands now it's 10 tracks long with two 6 track long ramps. The connector clips between the roadway and tower are not connected because they were crashing LDD with it's many rotation issues, though it works in real life the same way as in set 76057. Without the ramps attached. The deck has been lowered and the tower added some height to let a double stacked container train of 10219 style cars through, (those are the tallest cars Lego has made) The model has two towers, four deck sections, and four deck with connector modules, plus two ramps. (one left and one right) The (UPDATED) LDD file is available here: http://www.moc-pages.com/user_images/80135/1472311962m.lxf As usual, Comments, Questions, and Complaints are always welcome! NOTE: quote edited to remove my name and substitute it with my username "Murdoch17".
Murdoch17 posted a topic in LEGO Train TechThis truss bridge's design was started a decade ago when I received CITY set 7900 (Heavy Loader) for Christmas 2006. I loved the truss part's Technic-y design, but it didn't work with my original black and red trains, so I shelved the parts, hoping that someday reality would catch up with my dreams. After about 4 years, I designed a workable bridge using most of the parts of Bionicle set 8995 (Thornatus V9) which was purchased for the parts alone in 2010. It looked bad and wasn't tall enough for most of my trains, so I tore it apart in 2012. (you can see it in the LDD screenshot above) I kept sitting on the idea for another year and a half until 2014, when I designed this current bridge. This bridge was just finished in Real Life yesterday due to constantly tweaking the design and perpetually fearing it wouldn't work right. The model is five tracks long, but the bridge itself is four tracks. The reason for the extra track is to give the engines preparing to cross the bridge room to straighten out from curves / switches. I still have another two pieces of flex track (not shown) before the bridge as well for evening five tracks out to six.... it makes layout planning so much easier when (mostly) everything is in even numbers of track. The model is not able to be doubled up to make a two track wide bridge without significant modifications. The model can fit 8 studs wide trains with ease, and is tall enough to let all my trains (and most, if not all, of the official sets) through. The bridge is even strong enough to be carried by the top grid-work, as long as you don't swing it around / slam it down hard. LDD file for the newer gray-scale bridge: http://www.moc-pages...1451924070m.lxf Comments, Questions, & complaints are always welcome!