Can't rank two sleeve demos with different tray pockets

ImranAllen0305 · 11 Mar 2025, 08:32 UTC

Closed
IM
ImranAllen0305
I'm comparing a UR5e proposal with another arm for sleeve sorting. One demonstration used generous chamfered pockets; the other used our narrow square-entry tray. The easier one looks smoother, naturally. What should we hold constant in a repeat demonstration so this becomes a useful comparison?

5 replies

OM
OmarChen1187
Replying to ImranAllen0305

Use the same part and tray conditions, then state what each demonstration must show. I can't tell how much of the current difference belongs to the arm.

22 points
IM
ImranAllen0305
Replying to OmarChen1187

We've asked both suppliers to use our tray drawing and retained sleeve samples. One says their preferred tray is part of the proposed package. Fair enough, but that makes it a different buying decision.

8 points
OM
OmarChen1187
Replying to ImranAllen0305

Compare complete proposals in that case, including the tray change and its cost. Or keep a separate test of the existing tray requirement; don't mix the two scores.

7 points
IM
ImranAllen0305
Replying to OmarChen1187

That's helped. We now have an existing-tray requirement plus an optional redesigned-tray proposal. Our supervisor hadn't realised the smoother video meant replacing all the trays, so that cost is getting proper attention.

11 points
OM
OmarChen1187
Replying to ImranAllen0305

Does the redesigned tray still work for manual handling and inspection? I'd check those uses before treating its effect on robot loading as the whole benefit.

21 points

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