Hi there,
I would like to present my modification of Lego Technic Mobile Crane MK 2. It is full PF modification with 9 motors 3 XL, 1L, 5M. Two Battery boxes (independent superstructure, full rotating 360 degrees). Body extended with 13 studs, added 6th axle (steering angle is same as first one). In chassis are mounted two XL motors for driving, one M for steering and another two M for outriggers. Also fake V10, battery box and two receivers. In superstructure is one XL motor for raising boom, L for its extending, one M motor for winch and one M for rotation the superstructure. Boom is extended also only 12 studs. Overall lenght raised from 56 cm to 71 cm, height with extended boom from 75 cm to 98 cm. Weight is 3,7 kg. I found one major problem and it is only one powered axle. With its weight it is imposibble to drive on carpet or drive through sharp turn.
More pictures: http://www.brickshel...ry.cgi?f=531902
Video: