Adeor

New update. Bottom sides are now complete and according to studio.io, this project has almost 2200 parts (and articulated section is not even finished). In the future, part colors and some elements are about to change. Current dimensions - Width: 25,1 studs/20.1 cm (I tried to make it thinner by two studs but double wheels makes it impossible), Length: 74.3 studs/59,4cm; height is 18.1 studs/14.5 cm. Weight is almost 2 kilograms.

I would very like to see your progress in the future.

Thanks for the replay. This bus actually is not a Jumbocruiser anymore since I decided not to build it double decker (for now). This MOC does not feature pneumatics since it is expensive and complicated. If I ever decide to rebuild/ build another coach, I probably would consider pneumatics. I am not sure about the scale. As for Power Functions vs Powered Up, I did a research and decided to use PF. Again, rebuild/ new build probably has PU motors. This MOC would not have tag axle. I tried to include it but that would make it longer. The engine and rear end is copied from this MOC https://rebrickable.com/mocs/MOC-5161/HallBricks/motorized-bus/#details

A year later and I basically started over and made some progress. I started building from articulated unit and dropped the suspension. Also. I have read that there are articulated buses out there that has a rear engine that powers both third and middle axle. I have no idea if this works for Lego Technic build, but I am trying that out. Coach will now have two lighted toilets with kitchen corner on top. The bus will be powered by two PF L motors on the rear and possibly two PF L motors for middle axle. with current update, MOC is 53 cm long and has roughly 1000 parts. I would very much like to read some feedback.

Over a year later and finally having sort of progress with my project. Decided to drop the second floor entirely. The main part of the coach has currently 1002 parts and while I also started building artuculated unit, I have no idea how many part that section has. As a recurring issue, I still cannot figure out how to create perfect steering axles with springs. There are not enough examples as all of the suitable ones are for low-floor city buses. Issue with current setup is that main floor is too high up from the bottom and same issue makes clearance very low, even with bigger wheels. And I guess the body is also too long since second steerable axle has huge freerun when I turn front wheels manually. When I turn the wheel, rear axle doesn't turn at all. I hope this issue can be fixed in the future when I add a servo motor.

Yes. I will plan to use bigger wheels. I got recommendations to use 62.4x20 tires with 43.2x18 wheels

Small update for test build v2 First row of seats got "installed" and springs from the suspension got connected to the upper floor. Spring connection to floor was a tricky connection at first. Tested the suspension and discovered that the middle floor section between seats started to bend too much. I don't know if it is fixable when I finish the the frame but just in case I will add some crossbeams under the floor. What's better - powered up or power functions?

Update. Tried different approach and now I have a test build v2 for articulated double decker. Sorry for bad picture quality. Front and middle axles have different styles of suspension. Front is based on Mercedes-Benz Arocs truck but got modified to fit with my build. Middle axle suspension is custom made. I am not sure If I should go back to steerable central axle. I want to fit a motor for steering into that section I had not enough parts to build first floor's floor and raise the ground clearance for rear section. For future build I will change the height of articulated joint, raise the rear section and possibly add independent suspension for each wheel. In conclusion - version 2 might look better than version 1 but there might be some issues like suspenion building style for both front and middle axle and wheels being too small not to mention wrong style. If there are more, I am eager to listen to your suggestions. In future I also want to add motors for steering (1x), engine (2x) and possibly for doors but I have no idea which are better - power functions or powered up. PS? How do I change the title of my post?

Amazing work but the the articulated joint kinda looks it needs something to cover it. Could you tell how did you added the brick skin to cover the chassis?

Update Test build

Test chassis for the front part of the bus Test articulated joint Test seatpair Thanks. Pictures uploaded and shared

Only test items I have are seatpair and the chassis for the first part of the bus and I haven't started with other items as I don't have neccessary parts yet. I could add some pictures but this site has some restrictions to size of the pictures.

Planning to build a double decker articulated coach based on Neoplan Jumbocruiser and I now I thing it might be too ambitious as it technically challenging work Planned features * 25 studs wide and 1.2 meters long * 3 floors - cargo floor for technical stuff like motors and 1st & 2nd floor for passengers * "detailed" interior with double seach on each side and at least 40 seatpairs at the first floor of the first section of the bus and each seatpair is 9 studs wide * 4 axles - front, middle and 2 rear axles * independent suspension for all wheels * 3 steerable axles - 1st and 2nd axle through powered up motor (no idea if I need a clutch) and 3rd axle through articulated joint * functioning rear V6 engine with powered up motors * functioning steering wheel * functioning doors possibly through motors  No idea how much it will eventually weigh and if powered up L motors or even XL motor can evem move it. Most challenging parts to build are V6 engine (already built for my other MOC that got cancelled) with two motors on its side to unite with drivetrain (no idea if I need a clucth), independent suspension, rear steering through articulated joint and independent suspenion for front steerable axle that links with functioning steering wheel and powered up motor. Any adivice?

I am a relatively new member, started in June, altough I followed Eurobricks like a year now. I am a Lego fan since 1998 altough interest "got lost" for 20 years then it surfaced again and since then I have bought surprisingly 40 sets (5 of them are from late 90s as my original sets) My favorite themes are Technic and City and for some reason when I build a City set, I don't care about small accessories or minifigures I have also built small scale MOC's but now I have really ambitious MOC in mind as I want to build double decker articulated coach based on Neoplan Jumbocruiser. Planned features * 25 studs wide (at least) and 1.2 meters long * 3 floors - cargo floor for technical stuff like motors and 1st & 2nd floor for passengers * "detailed" interior with double seach on each side and at least 40 seatpairs at the first floor of the first section of the bus * 4 axles - front, middle and 2 rear axles * independent suspension for all wheels * 3 steerable axles - 1st and 2nd axle through powered up motor (no idea if I need a clutch) and 3rd axle through articulated joint * functioning rear engine with powered up motors * functioning steering wheel * functioning doors possibly through motors No idea how much it will eventually weigh and if powered up L motors or even XL motor can evem move it. functioning rear engine with powered up motor, articulated joint and front steerable axle with suspension are most technically challenging to build and so far I know, there are no examples to get a sample.