The Mobile Gantry Crane & Turn-Table System operates with a one dimensional crane at the centre of the system. The crane will always lie above the ramp and move only perpendicularly (vertical) to the ramp that holds the blocks.

The crane hooks onto a harness system that will lift the blocks individually. The crane has one dimension of movement in the z-axis direction (denoted in figures below). Once the block is lifted, the block will be locked in place with one-way threaded gears working with the cable and therefore, the block will remain suspended a safe distance above the artwork.

The horizontal movement of the block is now achieved by using the mobility of the crane which includes four wheels attached to tracks. Once the system is moved over the desired position on the ramp, the wheel lock on the current track position and the crane slowly lowers the block onto the ramp.

All movement involved in the design will be accomplished using turn-tables that require students to push horizontally onto them (demonstrated in sketches below). The turn-tables will be attached to the crane using a cable winding around the table’s base (acting like a pulley). There will also be two more turn-tables control the forward and backwards movement of the crane respectively.