Today I messured the backlash during c-axis mode.. Messuring at a dia of 260mm the indikator moves about 1mm, this is done by hand without the M88 clamp. I ve inspected the belt drive, and one of the belts was not in good condition, but I dont think one out of 8 belts should cos this problem. I ve talked to the mechanic at work and we are going to change to new belts and try to tighten the belt drive a bit, he thougth that the belt tension were OK, but what does he know??? |