Body will consist of plastic water bottles joined together for buoyancy. Two levels of bottles will form the hull, with the lower level being smaller and tapering inward to create displacement. The wheels will be made from spools filled with clay,the clay being molded into a ridged shape and covered with electrical tape for water resistance and traction. The arm is made from wooden sticks and a plastic fork, used for hooking objects and picking them up. Interior mechanical parts are mounted on a foam square affixed to the water bottle hull.
Solution 2:
As the previous solution, the body is constructed from plastic water bottles. The motors and other internal mechanics are mounted to a wire frame constructed of coat hangar wire arranged in a grid pattern. The wheels are constructed of bottle caps glued together and covered in tape.
Solution 3:
Body is constructed from a large foam piece that has been cut and shaped into a tapering, boat-like design for displacement and hydrodynamics. The interior is carved out to allow space for motors and other mechanics. The wheels are similar to the first design, being constructed of spools and clay. The motors in this design are allotted one per wheel, and one to raise/lower the arm.
Solution 4:
Body, like Solution 3, is constructed of shaped foam for buoyancy and structural integrity. The motors in this design are arranged so that each motor powers two wheels, leaving a spare motor to power a pulley attached to the arm, which can be raised and lowered. The wheels in this design are smaller and constructed of caps and tape.
