the puck sits crooked after a tray swap

BenAli0196 · 26 Mar 2025, 14:35 UTC

Closed
BE
BenAli0196
I've taken over an FR10 transfer job with pickup offsets written on sticky notes. Aluminium pucks grip crooked after some tray swaps. Before I blame the arm, what would you want measured?

14 replies

HA
HazelAdams0136
Replying to BenAli0196

Compare a troublesome tray with one that behaves, including its locating surfaces. The swaps are a useful lead, not a confirmed cause.

13 points
BE
BenAli0196
Replying to HazelAdams0136

Two tray generations in circulation. Outside dimensions match. Pocket inserts are different, which nobody mentioned when handing me the offset collection.

15 points
HA
HazelAdams0136
Replying to BenAli0196

Establish which tray revision the job was commissioned against. Mixing generations can hide inside an otherwise correct setup.

18 points
BE
BenAli0196
Replying to HazelAdams0136

Original acceptance photos show the older inserts. Both generations are labelled with the same recipe name. That was a decision, apparently, but there's no review attached.

11 points
HA
HazelAdams0136
Replying to BenAli0196

Have the tooling owner compare the part seating in both. Recipe labels don't establish mechanical equivalence.

23 points
TH
ThomasCarter0973
Replying to BenAli0196

Are the pucks already tilted in the newer pockets before the gripper touches them?

10 points
HA
HazelAdams0136
Replying to ThomasCarter0973

A pre-contact observation would help. If they're square until contact, the investigation needs to include tool alignment and clearances.

5 points
RO
RobinAli0251
Replying to BenAli0196

Can you identify which taught offsets were added for which tray revision?

8 points
BE
BenAli0196
Replying to RobinAli0251

No. Notes say things like better now. I've frozen that program copy and asked for a proper baseline comparison instead of trying to reverse the changes from memory.

0 points
RO
RobinAli0251
Replying to BenAli0196

Then preserve the notes as history, but don't turn them into adjustment instructions for the next operator.

19 points
NO
NoraArcher0409
Replying to ThomasCarter0973

What did the pre-contact check show? I'm trying to understand whether the new inserts actually change how the puck sits.

17 points
HA
HazelAdams0136
Replying to NoraArcher0409

Also inspect a new insert's mounting in the tray. A correctly made pocket can still sit incorrectly if its installed support is wrong.

8 points
BE
BenAli0196
Replying to NoraArcher0409

Toolmaker found the new inserts seat the puck higher. Some finger contact is now on the edge radius. Revised tooling review underway; no robot drift demonstrated.

14 points
HA
HazelAdams0136
Replying to BenAli0196

That gives the review a concrete geometry difference. Keep the two tray types distinguishable until their permitted tooling and recipe combinations are agreed.

13 points

Discussion closed

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