Retort of the famous crawler crane DEMAG CC-12600 at the 1/30 scale, the construction began february 2007 on MLCad.
It can be disassembled for the transport like the real model in several modules and lockable by technic axles.
It's built only with the help of pictures i found on the web and the crane's pdf file.
The crane count 18 motors:
  - 2 for the right crawler
  - 2 for the left crawler
  - 2 for the turntable
  - 1 micro-motor to turn the cab
  - 1 for the main boom
  - 1 for the fly jib
  - 1 in the A frame for the superlift
  - 2 for the main hook
  - 1 for the runner(second hook)
  - 1 for the compressor
  
For the conterweight carrier:
  - 2 motors to drive it
  - 2 motors to turn the axle-trees

For the pneumatic part, there is 17 cylinders(maybe 21 with the main boom and superlift):
  - 8 to lift the crane to put the crawlers
  - 1 to tilt the cab on the rear
  - 8 for the counterweight carrier  

For the extras, there is 2 leds for the lighting, 2 exhausts on the rear, 1 flashing light on the cab and several stairs and
ramps.
When it will be ended, the crane will weigh 20kg and the height will be 4m(SWSL configuration).
There is about 400m of rope for all hoists and about 13000 parts.

If you want more info, visit here: http://www.setechnic.com/Forum/topic948.html

And if you have any question or comment please ask me on: slyks4@club-internet.fr