Sleeve pad comparison without an agreed viewing method

JamieAdams0121 · 5 Apr 2026, 09:51 UTC

Reply to discussion
JA
JamieAdams0121
Our supplier offers softer pads for the UR5e sleeve-transfer proposal, but the discussion starts with photographs taken under different bench lights. Some show a broad band, others a fine contact line. I need quality to define how the anodised finish is judged, alongside a complete holding and receiving-release check.

20 replies

DA
DavidBrown0954
Replying to JamieAdams0121

Were the same identified sleeves checked before and after handling, or are you comparing unrelated incoming and finished samples?

13 points
JA
JamieAdams0121
Replying to DavidBrown0954

Same lot, not the same identified sleeves. We have retained the samples, but I cannot claim the existing images locate when any mark appeared. Quality will choose the viewing method and references.

14 points
JA
JamieBrooks0817
Replying to JamieAdams0121

Then don't let the softer-pad offer become the assumed answer while that is happening; the broad band and fine line might not even have the same cause.

9 points
RO
RosaBrooks0814
Replying to JamieAdams0121

Include the person's normal loading and unloading in the comparison, because a pad change is only useful within the job somebody will actually run.

8 points
AN
AnilBell0636
Replying to JamieAdams0121

Start with the existing tool under an agreed method. Identify the sleeve before loading, follow it through the contacts and inspect it after release. If a new mark appears, have the reviewer distinguish where it first becomes visible. Then compare the proposed pad assembly through the same work, including its holding assumptions and how it lets go. Otherwise you can finish with two unrelated success claims: a prettier sleeve in one person's hands and a secure grip in another person's demonstration.

16 points
JA
JamieAdams0121
Replying to AnilBell0636

That combined scope is with our integrator now. Quality accepted the broad band on an incoming reference and rejected the fine line on another sleeve. The supplier has been told not to treat every band in the photographs as damage.

6 points
DA
DavidBrown0954
Replying to JamieAdams0121

Does the proposed pad set have an actual assembly reference yet?

17 points
JA
JamieBrooks0817
Replying to DavidBrown0954

And don't quietly change the grip depth for the soft set without showing it, because that could alter the comparison as much as the material.

11 points
JA
JamieAdams0121
Replying to JamieBrooks0817

It has a reference, David. Jamie Brooks, both candidates use the agreed held position. Their contact areas differ, and the integrator has the complete assemblies for assessment rather than a claim about softness alone.

5 points
RO
RosaBrooks0814
Replying to JamieAdams0121

Have you included pad replacement and cleaning in the handover scope for whichever candidate is retained? Those tasks can differ even when both tools move the same sleeve.

9 points
AN
AnilBell0636
Replying to RosaBrooks0814

Rosa, yes, but I'd get the actual handling result first before drafting a maintenance lesson for a set they may reject.

11 points
RO
RosaBrooks0814
Replying to AnilBell0636

Agreed on the lesson; I meant knowing whether the candidate adds a task or consumable before purchasing compares its cost.

21 points
JA
JamieAdams0121
Replying to RosaBrooks0814

The trial brief includes those differences. Existing pads leave the fine unacceptable contact line on the identified checked sleeves. The proposed set has not left that line in its initial holding comparison; receiving release still needs the full check.

14 points
JA
JamieBrooks0817
Replying to JamieAdams0121

So keep the proposed set as a candidate. Initial hold is useful, but a sleeve that sticks during release can lose the finish you just protected.

7 points
DA
DavidBrown0954
Replying to JamieAdams0121

Has the full check used the ordinary sleeve variation selected by quality, rather than only the easiest retained example?

20 points
JA
JamieAdams0121
Replying to DavidBrown0954

Yes. The selected range went through normal loading, holding and release with the proposed set. Quality found no new unacceptable marks under its agreed method. Integrator has the handling results for its final candidate review.

6 points
RO
RosaBrooks0814
Replying to JamieAdams0121

What did the maintenance comparison add to the cost?

19 points
JA
JamieAdams0121
Replying to RosaBrooks0814

Identified replacement contacts and their cleaning task, both priced. Maintenance has the supplier's applicable instructions and accepts the task. It is a dearer contact set, but no extra sleeve preparation is assumed.

8 points
AN
AnilBell0636
Replying to JamieAdams0121

Has the responsible reviewer accepted the complete candidate now? The appearance result alone should not be carrying the purchase decision.

21 points
JA
JamieAdams0121
Replying to AnilBell0636

Integrator accepted it for the next integration stage, with the defined assembly, handling results and maintenance scope. We selected that pad arrangement. Thank you, Anil; combining the checks stopped us buying from two unrelated demonstrations.

23 points

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