UR5e puck transfer keeps gaining offsets and losing a square grip

AnnaBrown0938 · 22 Aug 2026, 06:14 UTC

Reply to discussion
AN
AnnaBrown0938
My fixture-to-tray puck transfer is becoming unreliable despite repeated pickup edits. The tray only appears unchanged; the grip is visibly less square. What inspection sequence should precede another teaching change? I do not have evidence to call this arm drift.

11 replies

TH
TheoChen1193
Replying to AnnaBrown0938

Where is the puck first visibly out of square: seated in the source fixture, at finger contact, or after lift? Preserve the current program and the earlier edits before inspecting, so you can relate a physical finding to the setup that showed it.

23 points
BE
BethAbbott0063
Replying to TheoChen1193

Include the actual finger pair and mounting condition against the intended assembly. Matching-looking fingers can still be different revisions; I would not buy replacements from appearance alone.

-1 points
JA
JamieBaker0469
Replying to TheoChen1193

Keep the source fixture in the check; the destination tray may be a distraction here

15 points
AN
AnnaBrown0938
Replying to TheoChen1193

The video starts after lift, so the first difference is unknown. Saved the point versions and retained the puck. Maintenance has the source fixture and tooling inspection request.

2 points
HA
HazelBennett0745
Replying to AnnaBrown0938

Record that missing early observation explicitly. An inspection may find wear, but without the sequence evidence you should not assume every visible worn feature caused the tilt.

25 points
TH
TheoChen1193
Replying to BethAbbott0063

Can maintenance identify the intended finger drawing before comparing contact geometry? A correct-looking pair needs a reference, not just agreement between the two fitted pieces.

-2 points
BE
BethAbbott0063
Replying to TheoChen1193

Yes, and the fixture revision too. My earlier mixed-finger finding was specific to that assembly, not a reason to assume Anna has the same fault.

22 points
JA
JamieBaker0469
Replying to TheoChen1193

Who keeps the comparison together when the supplier replies to only one person?

21 points
AN
AnnaBrown0938
Replying to JamieBaker0469

Maintenance lead owns it. Supplier confirmed the finger drawing; the fitted pair matches. Source-fixture location is still unverified, and we have no authorised new observation of the pickup yet.

16 points
TH
TheoChen1193
Replying to AnnaBrown0938

Then the next useful step remains that fixture comparison and an agreed observation of when the skew appears. The matching pair removes one suspicion; it does not establish the contacts are unworn or the mounting sound.

8 points
HA
HazelBennett0745
Replying to TheoChen1193

Keep those as separate checked and unchecked items in the report. Otherwise matches drawing can travel through a handover as tooling checked, which is a much bigger claim.

5 points

Add to the discussion

Welcome to Application Robot

Everyone can read the forum. Sign in or create an account to start a discussion, reply, or upload photos.

Forgot your password?

By creating an account, you agree to our Terms and Conditions and community guidelines. Read our Privacy Policy for how your information is handled.