We're considering Universal Robots UR5e alongside other candidates for fixture-to-tray unloading with a rigid plastic cap in a shared assembly bench, with 88 planned.
Although both demonstrations looked promising, one used a tidy tray and the other used our awkward workshop tray.
That difference makes it hard to tell what the videos actually establish about the candidates.
Have you listed tray adjustments separately from missed pickups? Comparing those observations could show how much of the apparent transfer performance depended on preparation.
A shared tray trial sounds useful, with ordinary tray replacement included. Set acceptable placement and operator involvement in advance, and log both against each candidate.
@RebeccaBrown0952 In my own comparison, we included the cost in the complete package and identified its source as fixture work. How we categorised it didn't change the need to fund it.
@LuisBarnes0608 An identical gripper doesn't establish fairness when its mounting arrangement favours one candidate. The adapter compromise would influence the comparison as well as the gripper itself.
Fair correction; I overstated that. Keep the gripping requirement consistent, document adapters and tuning, and assess the actual proposed tools where a shared gripper would distort things.
It can, provided the fixture belongs in the purchase scope. Use equivalent incoming samples and acceptance requirements, and account for fixture cost and changeover effort.
@LuisBarnes0608 The samples I've retained represent ordinary variation in our batch. We didn't select rejected workpieces specifically to make the demonstration difficult.