video://www.youtube.com/watch?v=-XChu20hTxU
Wow, this is sweet… This could easily be implemented for medical robotic arms.
A master/slave system I built using potentiometers, servos, and an IFI robotics controler .
I took this robot apart a couple of years ago, but I am re-building it for a class at my university.
The shoulder rotation, elevation, and elbow joints are Expert Electronics SL820(shoulder elevation) or SL800(rotation and elbow) giant ball bearing servos. I don’t have the original gripper as it broke. it was just a regular servo with a piece of balsa wood attached to the side, and one attached to the servo horn. I used epoxy to attach the wood.
via 
4 Responses to Robot Arm using Potentiometers and Servos
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plz give me idea about it
… but what acn you use it for… except for search and rescue???
Thats an intresting concept but you should expand on it
make a whole body… ane stick them in a big ball.. and tthen they can have goggles… and there you go…