@JoAli0244 In the footage, it sits consistently in the checked fixture and turns during gripping. So the crooked position isn't there at the start.

Preserve the current settings and pause further nudges. Have maintenance inspect finger mounting, contact surfaces and tray seating under the proper isolation procedure, using that observation to guide the checks

I've checked the maintenance history and found a pad replacement preceding the initial pickup-point correction. That establishes a relevant sequence of changes to investigate.

That sounds like the pad replacement caused it. Check the installation against the specified arrangement

Timing isn't enough to call it the cause. Check the pads, yes, but don't let one maintenance entry explain away fixture variation

You're right; the history supports a check, not a conclusion. Inspect the pad installation and gripping surfaces while retaining tray location in the investigation

My separate handling setup had both worn gripping surfaces and variation in tray seating. Coordinate corrections alone gave inconsistent results because they didn't address either underlying condition.

@VictorChen1142 With multiple point changes already in our history, I'm unsure how to distinguish tooling and tray effects. How did you structure that comparison on your setup?

@OscarArcher0358 For my setup, a documented reference configuration anchored the investigation while maintenance assessed individual conditions. Discovering wear didn't mean we automatically restored older pickup coordinates.

Why not just go back to the original points once the gripper's checked? Aren't those the good ones?

Only if they match the verified setup. Tooling, frames or presentation may have changed; your responsible technician should compare the configuration before any supervised validation

We haven't verified that match yet. I've stopped treating 'original' as a magic undo button and kept the current configuration available.

Good. Also, 'tray looks the same' isn't a seating measurement. Your pre-contact observation helps, but it doesn't cover every tray replacement

The supervised comparison found seating variation as well as worn gripping surfaces. So we really do have more than one thing to investigate.

The pre-contact and gripping observations have narrowed where the symptom develops. We haven't established an accepted remedy, so I'm holding further coordinate adjustments during the investigation.

You've located when the symptom appears, even though the remedy is still open