The proposed FR10 vacuum tool held a loose stainless cover panel on the supplier's bench. Useful, but our panels come from a stack, and I have had two stick together by hand. The report doesn't show how the free edge stays supported on the way to the nest either. Am I asking for a different trial, or should that have been part of this one?
A supplier once showed us a single sheet lifted from little blocks, which was a perfectly clear demonstration of lifting from little blocks. We needed sheets separated from a stack. I would ask them to demonstrate your starting condition explicitly, including what happens when two arrive together and how the tool releases into the real receiver. Otherwise everyone can keep agreeing the vacuum works while answering different questions.
Little blocks here too, Noah. I hadn't even mentioned them because I was concentrating on the cups. Thanks, that gives me a much clearer way to explain what's missing.
The supplier has withdrawn the 'stack handling demonstrated' line. They only tested the isolated panel. We have agreed a new trial using our stack samples and receiving nest, with support and double-panel handling included in the brief.