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operational crane with gears

this crane can rotate 360 degrees. without walking against it, it can pull itself up and down. the whole crane was designed to use less ropes as possible, thanks to the gears, it can rotate and lift cargo in a controllable way. without the spring tension of the ropes.

in the base of the crane you can rotate the arm 360 degrees. due to being heavy. it needs a "start" sometimes turning it the other way around can work to get the arm in motion.

behind the crane are 2 more cranks. 1 is lowering/rising the arm. the other is for bringing the cargo up and down. playing with these two will cause swinging. but, with some help with others, you can bring cargo further away to its destination.

because of the design it will be easy to climb on top of it for maintance. and/or repairing the crane.

the extra hooks are used for tension springs. the rope should be connected in a respected manner, that the crane can operate fully. without tearing itself apart.