As the ball screw is advanced toward the table main body, {HEAD ~ the end} of the ball screw pushes {TAIL ~ one side} of the table main body to swivel the table main body in a first direction 
As the ball screw is advanced toward the table main body , { HEAD ~ the end } of the ball screw pushes { TAIL ~ one side } of the table main body to swivel the table main body in a first direction
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH