I have a strange problem
My customer has several types of job where he just changes fingers on grippers and enters 1 number in data registers
I use 5 user frames, and a couple of days ago, after successful work for some time they report a problem with gripper missing the position by about 10mm.
It misses exactly the same on 2 user frames (pneumatic pallet table, both surfaces), and it's perfect on the other 3 (inside 3 cnc machines)
I've compared all relevant positions and all user frames from current backup with the one that it worked on before, and they are identical
The only reason I can see for this happening is table moving, but I can't check that easily. Is there any other reason for something like this to happen? And a way to check for it?