Hi.
I have 6 UP6 welding Robots, they have about 27000 servo on hrs, time ago I have been having variation on welding points, some robots becomes more noticeable variation and all the time I'm using PAM function.
I would like to know recommendations, test or inspection that I need to do in order to know what is generatin this variation, I have performed the TCP calibration but the problem persist.
I will appreciate any comments.
Thanks.