Point adjustments are hiding something in our handling setup (tray unloading)

BenBaker0457 · 10 Jul 2026, 12:54 UTC

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BE
BenBaker0457
Our setup uses Fairino FR5 for tray unloading with a machined aluminum puck in a supervised production bench. We've repeatedly adjusted pickup points as handling becomes unreliable. Although the tray appears unchanged, the grip no longer looks as square. I'd like an inspection sequence that helps us identify the cause before making further teaching changes or attributing it to the arm.

11 replies

NA
NaomiCarter1028
Replying to BenBaker0457

@BenBaker0457 Look at the relationship between the workpiece and fixture before contact, then during gripping. Can your existing observations show when the change in angle begins?

18 points
BE
BenBaker0457
Replying to NaomiCarter1028

@NaomiCarter1028 In the footage, it sits consistently in the checked fixture and turns during gripping. So the crooked position isn't there at the start.

11 points
NA
NaomiCarter1028
Replying to BenBaker0457

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.

23 points
BE
BenBaker0457
Replying to NaomiCarter1028

The maintenance notes show contact pads were replaced before the first point adjustment. That's the first useful clue I've found in the history.

7 points
NA
NaomiCarter1028
Replying to BenBaker0457

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

16 points
SA
SamCarter1029
Replying to NaomiCarter1028

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

22 points
NA
NaomiCarter1028
Replying to SamCarter1029

Agreed, I called it too early. Treat the replacement as a lead; verify installation and contact condition alongside tray location before assigning the cause.

9 points
FA
FarahAllen0330
Replying to NaomiCarter1028

@NaomiCarter1028 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.

22 points
BE
BenBaker0457
Replying to FarahAllen0330

@FarahAllen0330 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?

5 points
FA
FarahAllen0330
Replying to BenBaker0457

We kept a known reference configuration and had maintenance check one condition at a time. We didn't roll back points blindly after finding wear.

24 points
LI
LiamAli0229
Replying to FarahAllen0330

@FarahAllen0330 Why not just go back to the original points once the gripper's checked? Aren't those the good ones?

3 points

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