Let me introduce my Mobile Crane.
I had no intention to build scale model of any real vehicle, though I think some elements has their source in Liebherr cranes
The main objective was to build fully motorized mobile crane and keep the scale as small as possible.
There are 6 motors in the crane. 1 XL motor is used for driving (3-rd axle) and 1 M motor is used for steering (1,2 and 4-th axles, each axle has it's own angle like in the real multi-axle vehicles).
The rest of the motors (4 M-motors) are used to control the rotation of the turntable, the arm's elevation, telescoping and the hook's operations.
Three M-motors are located inside the rotating structure.
Watch the crane in action
Edited by Co1Der, 14 November 2009 - 11:46 PM.