The robot were totally fabricated using 3d printing. For the soccer robot crank-rocker based shooting mechanism was used. The crank–rocker mechanism is essentially a four-bar mechanism in which the output link oscillates when the
input link spins entirely, in accordance with Grashof's Law.
Whereas for the all All-Terrain rover a Rocker Bogie chassis was used. The Rocker-Bogie design lacks springs and uses stub axles for each wheel, allowing the rover to climb over obstacles up to twice the diameter of
the wheel while retaining all six wheels on the ground. The tilt stability is restricted, as with any suspension system, by the height of the center of gravity. As the loaded side of a spring system yields, the system tends
to tip more easily. The technology is intended to be employed at slow speeds of roughly 10 cm/s to reduce dynamic shocks and subsequent vehicle damage when overcoming large barriers.
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