Hello everybody, Im a new member on eurobricks and I want to share with you my new lego construction. Probably I finished building the world's tallest crawler crane model with LEGO. The model has already been described by me on my Polish website: naturalbornuser.pl. This is a representation of Liebherr LR 11000 and measures 700cm height: The model is my biggest and heaviest construction. Is higher than my previous model of the crane by 4 meters, was built entirely of original LEGO - except for the line and load within counterweights. Number of blocks estimate at 15,000, and the weight of the vehicle including counterweights was about 45kg (the weight of the model without counterweights this 22kg). The construction lasted 5 months. The model is a representation of the crane Liebherr LR 11000, but the proportions of some dimensions have not been preserved - especially I mean the widened portion rotational located directly on the turntable and this was associated with one of my assumptions about the construction of a specially extended arm and over the turntable. It is of course free standing construction. The model was not a collective work, but in order not to expose themselves to voices of opposition on this issue can not ignore people who helped me build: Invaluable help my brother, without which setting the vertical structure would not be possible: At the beginning of the few technical data model: height - 700cm tracked chassis length - 78s the length of the turret - 120s overall length of the vehicle (not including arms or counterweights) - 167s the width of a tracked undercarriage - 66s weight - 22kg (weight of counterweights - 45kg) Track drive - 2x XL motor with a reduction 1:40 the rotation of the tower - 2x XL engine driving a cart with counterweights (function absent when folding to a maximum of the rest of the functions of the crane (3 winder) - 6x motor XL two on rewinder (2 XLe to lift the whole arm, 2 XLe to straighten the second section of the arm, 1 XL - winder hook, 1 XL - extra winder for lifting the main arm) number of cells Track - 210 estimated target number of pieces - 15000 the estimated length of the rope - 100m Control electronics - 2x tower IR The only not lego elements are the line and load in counterweights. As soon as we found the right place to spread vertically crane sat down to prepare it for transportation in short it split up into fragments exceeding 120cm in length and repackage most of them in black foil, which stiffened the long parcels for transport to the hall offering 7.5 - 8 meters distance between the floor and ceiling. Each item has been checked against damage during transport, which could go unnoticed then lead to the weakening and destruction of the whole structure. Then he began to lasting a few hours of the submission process model with ten elements, which has been divided for transport. About 355cm: And 505cm: About 700cm: After turning the main winders driven by two motors XL by a significant ratio of the winding rope hoists running through heavy arm began to rise until it reached almost vertical. Then the second winder finished the whole process and final two-meter section of the arm was in final position: The structure is stable. At the time of publishing this article crane stands in the maximum configuration for five days to move the arms using machines is possible. When designing the construction arm of my goal was to minimize its weight which resulted in probably slightly on weakening capacity of the structure but with a substantial reduction in total weight allowed for a high altitude. The construction of most elements of the arm is as follows: Elements of a length of 105cm weigh about one kilogram each. On the other hand, the lowest situated part of the main arm weighs about 1.5 kg and is characterized by a more solid construction: Finally, a few images of a tracked chassis. And for more pictures and more information about this MOC you can visit my website.