c) d) e) f) g) h)
2 aluminium rods 1 high torque dc motor 1 dc motor of 100rpm Hook Pulley High tension wire
TOP VIEW ii) Mechanism The base of lifting mechanism is mounted over the chassis using two aluminium rods with parallel greaves to allow motion of the caster wheels .The rods are fixed over the chassis so that they don’t move. The base of the lifting mechanism is connected to the aluminium rods using two caster wheels. The base itself has two more wheels so as facilitate forward and backward motion of the lifting mechanism. Hence the lifting mechanism is free to move over the chassis.