Made an Exo-skeleton for a legs disabled person. Exo-skeletons are very costly and require many electronics and balancing programming and power to operate.  My design is to use the power of ones own hands to power their legs of the exoskeleton through the oil exchange between the hydraulics of the hands and legs of the exoskeleton and thus make to walk. This model doesn't require electronics and electric power. Legs and hands have same kind of joints and are suitabe to operate the said kind of exoskeleton. My design doesnt require any external power or electronics. I have mimiced the human motions into the exoskeleton by developing certain joints. I have started this project based on a commitment of a neigbourhood company named Jami Hydraulics where they would make mini hydraulics and support me for the project. But they could not commit time to it. Since they could not deliver me mini hydraulics , i happen to modify some used mini pneumatics  from a different town and continued the project. Tested this over the disabled person and was very happy to see him walk with it. But the modified used cylinders kept leaking and since i could not invest more finance into it, I have kept this project on hold.