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.
Does the customer have an appearance inspection method? Get that and the cosmetic zones on the drawing beside the samples before comparing pad materials.
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.
Request that procedure and compare handled samples with untouched references under it. A softer pad is worth including as a candidate to reduce marking.
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.
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.