We're picking a gripper for Fairino FR5 to handle an anodised aluminium sleeve during moving cosmetic components between nests in a small machined-components factory.
Our bench samples have marks on the visible cylindrical surface.
The supplier says softer pads; we haven't even agreed how to judge the marks.
I need holding and release covered too.
Visible cylinder, contact marks, no agreed inspection method (Fairino FR5)
ZaraChan1091 · 2 Jun 2026, 23:33 UTC
7 replies
Replying to ZaraChan1091
Does the customer have an appearance inspection method? Get that and the cosmetic zones on the drawing beside the samples before comparing pad materials.
0pointsReplying to SofiaChen1152
The drawing marks the outside cylinder as visible. Our pictures are just phone shots under workshop lights; nobody has linked them to the customer's inspection method.
5pointsReplying to ZaraChan1091
Request that procedure and compare handled samples with untouched references under it. A softer pad is worth including as a candidate to reduce marking.
5pointsReplying to SofiaChen1152
@SofiaChen1152 Softer pads can hold grit and drag on release. Your suggestion could sound like material softness is the main thing to optimise.
8pointsReplying to NoraBaker0496
You're right about the emphasis. The comparison needs contact geometry, representative contamination and release behaviour too. A softer pad doesn't get a presumed advantage.
14pointsReplying to SofiaChen1152
I've settled how to compare the contacts: use the customer's appearance method and assess handling alongside it. That's enough to move the selection review forward, with the final gripper choice still conditional on the results.
0pointsReplying to ZaraChan1091
That gives the selection review a clear basis while leaving the actual contact choice dependent on the comparison.
9pointsAdd to the discussion
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