To start auto m / c as joints of lead wire for welding arrive early permanent move to stop m / c shifting the boundaries to move forward at all position welding fixed.
The Start Auto M / C enough joint of Lead Wire move arrives first position Welding permanently to Stop M / C move to move forward at all the joints Welding permanent
Make a Auto Start M/C enough of sliding joints Lead Wire Welding positions before coming to M/C Stop, move the joints to move forward at a fixed Welding position.