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Model of a New Flyer XD40 transit bus in MTA livery. The model has roughly 3800 pieces. Features motorized drive, steering with working steering wheel, passenger doors, and a removable Cummins engine model with moving pistons. Functions/features: Drive Steering with working steering wheel Remotely controlled doors Removable Cummins engine model with moving pistons Instructions available on Rebrickable: https://rebrickable.com/mocs/MOC-153565/JLiu15/2015-new-flyer-xd40-mta-bus/#details Because my NJ Transit New Flyer XD60 model was a huge success, I decided to reuse my design and make another Xcelsior model - this time a XD40 in MTA colors. Unlike my NJT XD60 model which has the livery done entirely using stickers, the blue stripe livery MTA used prior to 2016 is easy to design with blue LEGO pieces. As a result, the model is recognizable as a MTA bus even without stickers, which is why I specifically included "MTA Bus" in the name. The model is not simply my XD60 model cut shorter. The chassis is redesigned from scratch. The front and rear axles are placed at a half-stud offset to allow for smaller wheel arches. The XL motor for drive is placed in front of the rear axle instead of behind it to allow space for the Cummins engine model. The battery is placed much higher and is accessible by removing the upper rear body panel. I added a switch on the roof to allow the battery to be turned on without removing the body panel, so it only needs to be removed for charging. There are also no supports in the chassis for the rear door as the rear door on MTA Xcelsiors open outwards, and the front of the chassis is redesigned to accommodate both the mini linear actuator for the front door and the connection from the steering wheel to the Servo motor for a working steering wheel. Lastly, the chassis is also designed to specifically accommodate for MTA's seating layout, most notably with only a single seat per row on one side in the low floor section. Like my XD60 model, there is also a roof frame that holds both motors for the doors as well as the rear door mechanism (which uses the same general principle as the inward-opening front door despite opening outwards). The roof frame is attached to the chassis using beams, making for a robust "skeleton" that the body is built around. The bodywork has also been redesigned in several places. The wheel arches are now smaller due to the half stud offset of the front and rear axles, although I had to use inverted slope pieces instead of arch pieces to allow the blue stripe to be built entirely in LEGO. This means the wheel arches are not perfectly curved here, but I found it to be a fair compromise for making the entire blue stripe in LEGO. The front lower body panel is one stud higher here compared to my XD60 model, although it kind of makes it look like the front of a MTA Orion VII NG (MTA Xcelsiors in the blue stripe livery have the bottom edge of the front windshield curve downward slightly, and such a curve would be very difficult to model in LEGO at this scale. The rear body panels use a simpler and more robust design, the front roofline curves are angled slightly outward (the space between them was increased by 2 studs), and the side body panels are attached to the chassis/roof frame using white 1x1 Technic bricks with axle hole and part 27940 in white. This allows for a seamless body without pins showing; part 27940 in white was not yet available while my XD60 model was being built. The roof is primarily built using 6x6 tiles this time instead of 5x11 Technic panels - because MTA's 2015 XD40s do not feature a full roofline, the transition from the side body panels to the roof is much more noticeable here which is why I went with the tiles. The model's functions all worked well. The single XL motor was more than enough to power the model, especially considering this model is lighter than my XD60 model. Although the moving pistons on the Cummins engine model are not easily visible (there's one piston visible under the last row of seats), I am happy that I was able to add some additional functionality to this model. And because the pistons are made using half bushes, the engine makes a nice sound while the drive motor is running. While designing my XD60 model I thought there was too little space in the front to incorporate a working steering wheel without compromising the rigidity of the chassis, but I was able to connect the steering wheel to the Servo motor just fine here. There is less reinforcement immediately in front of the front wheels so they don't collide with anything when steering, but the side body panels keep everything robust. I did not test the rear door mechanism before installing it on the model so I was concerned how well it will perform, but it is usually able to open the rear door fully with each door panel rotating 90 degrees. Sometimes the mechanism gets stuck while opening the door, but reinforcing the pieces a little usually solves the problem. While at first glance this MOC looks like my XD60 model shortened and without an articulation joint, it was really a new MOC from scratch. The chassis is completely redesigned and has little resemblance to the chassis of my XD60 model even without accounting for the lack of the articulation joint and a third axle. The bodywork was also improved in several places. All of the functions performed as expected, and the finished model is easily recognizable as a MTA XD40 even without stickers. Speaking of which, I decided to make my model bus 7225 operating out of Grand Avenue Depot in Brooklyn signed for route B62. Overall I am very satisfied with how my second bus MOC turned out, and I plan to continue making bus MOCs in the future, with one already in progress. Video: Photos: Brickworld Chicago Photos: -
[WIP] 2015 New Flyer XD40 MTA Bus
JLiu15 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Following the success of my New Flyer XD60 model, I decided to take the existing design and remake it into an XD40 in Metropolitan Transportation Authority (MTA) livery. I am doing the 2015 model since newer ones have the new blue livery which will be much harder to build in LEGO due to the availability of dark blue pieces. The design uses my previous XD60 model as a base, but this model is more than simply my XD60 model cut down by 20 scaled feet. The chassis is redesigned from scratch, with the front and rear axles at a half-stud offset to allow for smaller and thus more realistically sized wheel arches. The body panels are also attached to the chassis using white Technic bricks with axle hole connected to a white Technic piece with axle, allowing for a seamless finish with no visible pins. A number of details have been polished up since my XD60 model, but perhaps the biggest difference is that the livery won't be sticker-dependent on this model. The simple blue stripe livery means I can easily model it with LEGO pieces, and stickers will only be used for the bus numbers/lettering. I've only modeled it in Stud.io so far, but I largely know what to expect since my XD60 model so the actually building process should be pretty straightforward once the model is finished in Stud.io. Photos: -
My model is a city bus with New York City MTA livery. I have put more detail on this model comparing to the lego buses in current or past city sets. The reason to build this bus is to provide Lego fans specially to kids to have a Lego bus with the more realistic look. Bus is a popular vehicle type among children. I remember when I was a child, I always wanted to own a great looking lego bus. I believe I am not the only one who has same wish. I submit the project to LEGO Ideas. More pictures can be seen in the Lego Ideas link. I also uploaded the tutorial video to Youtube. I hope you like it and support my project. Thanks you :) Lego Ideas Link Youtube tutorial link My other MOC models: [MOC] New York City Police (NYPD) Car [MOC] Lego Mini Cooper [MOC] Japan Tokyo Taxi vol.1 東京無線タクシー [MOC] Ice Cream Truck [MOC] LEGO California Highway Patrol [MOC] LEGO Police Car [MOC] Police Motorcycle [MOC] New York City Taxi / Cab [MOC] LEGO NYC News Stand [MOC] New York City Transit Bus [MOC] Newspaper Rack [MOC] Coke/Beverage Cooler Initial D AE86 Racer AC Transit Bus AC Transit Bus Short Version Ice Cream Van
