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SuperDroid I, II and III were all built from salvage windshield
wiper motors, surplus gears and switches. They were wood construction. The arm from SuperDroid I was too heavy and made it tip too easy. The arm
was transferred to the next generation SuperDroid II. The arm worked better on the chassis, but it was still out
rigged from the wheel base, so when carrying heavy loads it would go off
balance. SuperDroid II added a
base that could rotate helping in the positioning and use of the arm. The lessons learned from
SuperDroid I and II were applied to SuperDroid III, along with their parts. SuperDroid III’s arm was positioned over the wheel base. In addition its arm was actuated using winches. The winches were in the base of the robot, making the arm lighter, hence able to lift more. All the cables were brought through the axis of each joint, so the if the shoulder moved the other functions of the arm would stay in position. The arm was a 5 axis arm. They were the Shoulder, elbow, forearm (twist), wrist, and gripper. The shoulder was spring assisted to counterbalance the weight of the remainder of the arm. It was capable of lifting 50 pounds. It was also very agile. The are motors had two speeds. The robot stacked twelve empty beers without any help (other than the operation of the remote) SuperDroid 3 then evolved into SuperDroid IV.
(Click on the images to enlarge the view)
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