Just want to note that we have already solved this by swapping it out with an unused vortex. Kristina and I found another tube-holder attachment in a drawer under the Qubit (look there for more vortex attachments and manuals!), so we are all set with this. However, the original one ("BenchMixer" from Benchmark scientific) is still broken. I called the company that makes them and they would provide no information about fixing it, but said they would be able to provide more information if I could provide the original PO.
Just want to note that we have already solved this by swapping it out with an unused vortex. Kristina and I found another tube-holder attachment in a drawer under the Qubit (look there for more vortex attachments and manuals!), so we are all set with this. However, the original one ("BenchMixer" from Benchmark scientific) is still broken. I called the company that makes them and they would provide no information about fixing it, but said they would be able to provide more information if I could provide the original PO.