Hello, I present my MOC , a functional model of the chinese giant machine SLJ 900-32. Original: length 91,8 m, width 7,4 m, 9 m high, tara weight 580 metric tons Bridge weight 900 tons 20130619084644_6093 by Wolf Zipp, auf Flickr The idea to build this with LEGO Comes from Gerd_59 in the german Forum DoktorBrick. I build it with aprox. scale 1:25 , but with the half number of wheels, because fullsize would it 3,6 m long. It is a full function model, not optical scaled. 13 Motors and pneumatic with 3 functions are on bord. Self made cabel control box with switches incl. pneumatic Switches. The Bridge box is no Lego , it has 2,56 kg weight., 60 cm x 36 cm x 8 cm The model is 2 m long, 30 cm width and high, 10,5 kg weight.  The Video at Youtube will maybe seen from many members. Funktionsbild by Wolf Zipp, auf Flickr