A crane is a machine that is capable of raising and lowering heavy objects and moving them horizontally. Cranes are distinguished from hoists, which can lift objects but that cannot move them sideways. Cranes are also distinguished from conveyors, that lift and move bulk materials, such as grain and coal, in a continuous process. The word crane is taken from the fact that these machines have a shape similar to that of the tall, long-necked bird of the same name.
Human beings have used a wide variety of devices to lift heavy objects since ancient times. One of the earliest versions of the crane to be developed was the shaduf, first used to move water in Egypt about four thousand years ago. The shaduf consists of a long, pivoting beam balanced on a vertical support. A heavy weight is attached to one end of the beam and a bucket to the other. The user pulls the bucket down to the water supply, fills it, then allows the weight to pull the bucket up. The beam is then rotated to the desired position and the bucket is emptied. The shaduf is still used in rural areas of Egypt and India.
As early as the first century, cranes were built that were powered by human beings or animals operating a treadmill or large wheel. These early cranes consisted of a long wooden beam, known as a boom, connected to a rotating base. The wheel or treadmill powered a drum, around which a rope was wound. The rope was connected to a pulley at the top of the boom and to a hook that lifted the weight.(history)
3dmodels
Crane. Wharf Crane
Rigged and animated giant Wharf Crane.
Full true visible detail.
All details are polygonal: no texture maps except for procedural noise/bump etc.
FULLY RIGGED
IN MAX AND MAYA VERSIONS
Includes 3 animation controls: hook lift, hand lift, body rotation.
All appropriate cables/movable joints are constrained and move accordingly without any additinal adjustment.
All elements are properly parented to BASE - so you can import, scale/rotate/move the whole structure keeping all active constraints.
CONTROLS:
IN MAX: 3 named sliders
IN MAYA: 2 circles and 1 arrow - names start with 'CONTROL'
ALL OTHER versions/formats:
Aligned to world axis.
All necessary parts for rigging/animation are separated, properly named, positioned and aligned.
Originally was modelled in MAX.
Previews were rendered in MAX9, FinalRender rendererFinalShaders.
All other formats were exported, tested and adjusted in respective software.
MAX version includes 2 render setups:
MAX9.FinalRender rendererFinalShaders used for previews
MAX9.Scanline rendererRaytrace materials.
All objects in all formats are properly named and grouped - clear structure.
All materials in all formats are properly named and assigned.
Price : $175 (add to cart)
Thursday, November 19, 2009
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