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All custom structural parts were created out of wood with the laser cutter, with the exception of the gears, which were also laser cut but made of acrylic in order to ensure smooth gear tooth faces. Within the leg mechanism, steel shafts were used to connect the joints, and ball bearings were installed by hand in order to create smooth motion. The steel shafts were filed down until they fit tightly into the holes within the wooden links and the bearings. The weight of the mechanism ensured proper contact between the shafts and bearings, and for shafts that weren't connected tightly enough into their wooden holes, we used super glue to strengthen the connection. For the legs that suspended the base of the mechanism, we laser cut slits into the base for the legs to fit into, and used super glue to strengthen those connections as well. The wheels on the ground where connected to shafts that ran through bearings at the bottom of the wheel legs.
