Troubador
Moderator
if one rattles then all of the same model better rattle or there is something wrong somewhere ........
Depends how hard you shake the bins Gunny but I guess you might say they should have a rigorously observed standard shaking procedure. Some folks never notice their Swaros rattle and its a good job because its not a fault its a characteristic. Not sure how much time bino brands spend checking out the consistency of their characteristics, presumably they only spend time checking those that might indicate something useful. Probably other characteristics can look after themselves.
As has already been said, there is a great deal that can be tested for on finished bins otherwise the whole concept of 'final inspection' would be a waste of time.
As it happens one of the top guys at GPO in Germany started his career machining parts for bins and moved up from there. He knows the insides of bins better than many folks know the outsides and I have no doubts at all that he knows how to quality assure.
Lee