I didn't see the Craftsman Scroll Saw you refer too, but the issue of a Craftsman saw and vibration struck a cord with me. - wood reference
Maybe I'm barking up the wrong tree but here is what happened to me and my Craftsman Scroll Saw, circa 2006. - another wood pun
I have been using it a lot since I bought and it has always worked very well. However, recently, all of a sudden it began running like an out of tune Model T Ford. I checked it out and discovered that the drive bearing on the upper arm had completely blown out and in addition to being missing, the shaft had completely distorted the upper arm to to about a half an inch clearance. It vibrated awfully.
Being a former Sears employee and a Craftsman fan, I knew that replacement parts were readily available. Don't laugh there are a lot of us Craftsman fans out there and we vote.
I easily disassembled the machine, quickly ordered new parts for the damaged parts in addition to new bearings, etc. They came within a week and I reassembled the machine and it now runs like a sewing machine. Quiet, no vibration, smooth operation.
Say what you will about Craftsman machines, but if needed, repair parts are readily available on-line and they are relatively inexpensive. This is not to say that Craftsman machines break more frequently, but that the Parts and Service facilities are as close as your phone or computer.
FWIW - When I worked at Sears 5 years ago the RIKON representative was the one who came in to the store to tutor us and service and clean the display machines and check inventory.