Can I compare these trials without comparing the wrong thing?

AmyCarter0989 · 4 Sept 2026, 16:24 UTC

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AM
AmyCarter0989
I have two cap-loading demonstration records, including a UR5e trial. One uses new pocketed trays; the other uses our worn workshop trays. The recorded cycle times look comparable, but the presentation work is different. I need a shortlist recommendation that explains what the evidence supports. What should a common follow-up trial contain?

15 replies

DA
DavidChan1128
Replying to AmyCarter0989

Use the same representative tray set and parts for both. Include setup and operator interventions in the record. At present you have two demonstrations of different systems doing different versions of the job.

17 points
AM
AmyCarter0989
Replying to DavidChan1128

One supplier offers a replacement tray as part of its package. I omitted that from the opening. We could buy it, but our incoming caps would still need transferring into it.

15 points
DA
DavidChan1128
Replying to AmyCarter0989

Then count that transfer as part of their proposed process. It may still be worthwhile. It should not disappear outside the trial boundary.

16 points
AL
AlexCell
Replying to AmyCarter0989

Are you shortlisting arms or complete handling proposals? A supplied tray is a legitimate design choice, but it changes what you're comparing.

21 points
AM
AmyCarter0989
Replying to AlexCell

Complete proposals, although our internal sheet is headed robot comparison. I'll correct the heading. The decision is which process we can support in the available workspace.

2 points
AL
AlexCell
Replying to AmyCarter0989

Then let each proposal use its tooling, with common input condition and accepted output. Capture everything needed in between.

25 points
DA
DavidChan1128
Replying to AlexCell

Fair correction to my first reply. Identical trays are useful for isolating a tray effect, but a complete-process comparison should include the proposed tray conversion rather than forbid it.

0 points
AN
AnilAli0201
Replying to AmyCarter0989

Did either video show what happened to a cap that failed to seat?

-6 points
DA
DavidChan1128
Replying to AnilAli0201

That belongs in the follow-up. A supervised interruption and the documented recovery will tell you who must support the process when ordinary presentation varies.

5 points
YA
YasminBennett0702
Replying to AmyCarter0989

Define accepted output before comparing speed. A cap lying in a pocket is not necessarily seated correctly, and the videos may be counting different results.

25 points
DA
DavidChan1128
Replying to YasminBennett0702

Also distinguish a rejected part from a completed placement in the totals. Otherwise fast rejection can look oddly productive.

8 points
AM
AmyCarter0989
Replying to AnilAli0201

Neither video shows recovery. One skips from a seating miss to the next loaded tray. I've marked that interval as unknown rather than estimating the intervention from the edit.

10 points
AN
AnilAli0201
Replying to AmyCarter0989

Did they provide raw footage, or only the edited demonstration?

3 points
AM
AmyCarter0989
Replying to AnilAli0201

Only the edited version. Requested the underlying record and a follow-up covering input preparation, accepted output, interruptions and manual work. No ranking change yet; the missing evidence matters more than the current time difference.

5 points
DA
DavidChan1128
Replying to AmyCarter0989

Have the people who will refill and recover the station review that trial outline. They may spot a support task the demonstration team considers too obvious to mention.

16 points

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