crazy technic Posted February 21 Posted February 21 Hi everyone, I’m excited to share my latest project: a 1:21 scale Liebherr L556 Wheel Loader. This model was designed 100% in Stud.io with an "engineering-first" mindset. While it is currently a digital prototype, it has been built with the same structural "overkill" I use for my physical builds—utilizing heavy-duty Technic frames and reinforcements to ensure zero sag. Technical Specifications: Scale: 1:21 (matches my previous Technic MOCs) Drivetrain: 1x XL Motor, 2-speed gearbox, and planetary wheel hubs for maximum torque. Functions: 4 Motors total. The XL drive motor also powers the onboard pump. (with manyal 2 speed gearbox) 2 additional motors actuate the pneumatic valves for the lift and tilt functions. the last motor is responsible for the steering The Challenge: As I am currently finished with the design, this model is not yet real life verified. I am looking for a dedicated builder to Test this MOC. What I provide: High-quality Stud.io generated instructions + .io file A feature/shout-out on my YouTube channel with photos/video of your build. Free access to any 3 of my other MOC instructions. What you provide: Hose Routing: You will need to determine the optimal pneumatic hose paths (not currently in the instructions). Verification: Confirming the mechanical clearances + working functions Media: Photos of the completed build. If you're capable of high-quality video, I’d love to feature it on my YouTube channel. Coding: Ideally, someone comfortable with the Powered Up environment to help refine the control logic. This L556 is part of a larger 1:21 scale machinery series I’m working on. I have several other heavy-duty MOCs currently in the design phase—including scania logging truck and a container handler. If you want to be the first to bring this digital design to life and have a passion for (Liebherr) machinery, please shoot me a PM or reply below! Quote
crazy technic Posted February 22 Author Posted February 22 here is a partslist for anyone who is intrested : Quote
Maaboo the Witch Posted February 22 Posted February 22 Nice choice of tyres. 42209 is a brilliant set, but those tyres would have elevated it even further. Quote
crazy technic Posted February 22 Author Posted February 22 10 minutes ago, Maaboo the Witch said: Nice choice of tyres. 42209 is a brilliant set, but those tyres would have elevated it even further. these are actualy tha audi tires, when i bought the tires + wheel hubs for another project that was what inspired me to design this Quote
Jundis Posted February 22 Posted February 22 Tires are perfect for this scale and machine. Would love to see this in brick built form and how the cables and hoses are routed :-) Quote
Maaboo the Witch Posted February 22 Posted February 22 1 hour ago, crazy technic said: these are actualy tha audi tires, when i bought the tires + wheel hubs for another project that was what inspired me to design this They're simply built for wheel loaders. I'm hoping that one of the missing sets for this year is a Volvo hauler that uses them. Quote
crazy technic Posted February 22 Author Posted February 22 9 minutes ago, Maaboo the Witch said: They're simply built for wheel loaders. I'm hoping that one of the missing sets for this year is a Volvo hauler that uses them. desperatly waiting for more new construction sets Quote
jorgeopesi Posted February 22 Posted February 22 I like to see narrow loaders as they are. In this case I would say that you could do bigger the cabin and it would be also right but without see the functions of the arm and bucket I can not say anymore. Have you think using another no-lego battery?, even me a purist I am begin to be frustrated with Lego electronic parts... Quote
crazy technic Posted February 23 Author Posted February 23 8 hours ago, jorgeopesi said: I like to see narrow loaders as they are. In this case I would say that you could do bigger the cabin and it would be also right but without see the functions of the arm and bucket I can not say anymore. Have you think using another no-lego battery?, even me a purist I am begin to be frustrated with Lego electronic parts... I have considered Buwizz and others ( and even putting a LiPo in the official hub) but Buwizz is out of my budget, and i was able to get the powered up electronics for cheap. Quote
jorgeopesi Posted February 23 Posted February 23 1 hour ago, crazy technic said: I have considered Buwizz and others ( and even putting a LiPo in the official hub) but Buwizz is out of my budget, and i was able to get the powered up electronics for cheap. I thougt the same but after losing two remote controllers, one small motor, one rechargeable battery and one receptor in two months I feel that I will save money buying another components. I have to say that they all were old components but I hace to say too that I do not play I just test my MOCs. Quote
crazy technic Posted March 21 Author Posted March 21 hello everyone, I have good news : the model has been tested and confirmed to work, here are some pictures, the new instructions are finished and will be released in the next week. only the code and pneumatic are left before i can release it ( tiny problem : the phone I used died recently and I switched back to a older model to limit distraction but that means i can't install control+, but code should be relatively simple) Quote
crazy technic Posted March 24 Author Posted March 24 https://rebrickable.com/mocs/MOC-256200/crazy_technic/lego-technic-liebherr-l556-motorized-pneumatic-121-scale/#details the instructions are now online Quote
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