home/ history/ 2006/ march/ robotarm RobotArmIt was fun building the arm with my seven year old daughter. The manual was great. Simply following it through step by step lead to a functioning devicethis might be a replacement for the broken crane... Not very easy to control tough - 5 DC motors, no detectors for position of jamming I have some ideas how it could be implemented without adding too much electronics - by simply measuring the current that is drawn by the motors. This would have to be tested, possibly a 'arm up' move does not draw detectably less current that the 'arm blocked' move If you'd like to see this arm online, post to the Forum
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