After returning from the winter on the border, I haven't done much cutting, just a few orders. With this COVID mess all the craft shows I was going to do this spring and summer are shut down...bummer! So I decided it's about time to get started making stock for the winter shows.
I've noticed a vibration that wasn't there last winter. I checked over the saw, all the nuts and bolts feel tight. Doesn't look like anything bent. I'm careful transporting it and pack it in it's original box. I checked the table to blade alignment...exactly 90*. When I cut a puzzle the pieces slide through from top or bottom, so I know the alignment is good. I've tried different blades, Pegas #3 & 5 that have been very smooth in the past. Not sure what difference in feel it would make, but I've moved the motor adjustment center...forward...and back. I have the Pegas blade clamps that are normally smooth.
I have only one idea/theory. When I set up the winter shop it has a nice wood floor, so I got a ribbed mat large enough to set the saw on to protect the floor. I also bolted the saw to the stand top, and the stand top to the stand. Here at home I had just stacked the three items. So...here at home I have saw bolted to stand top, bolted to stand, sitting on concrete floor. I'm wondering if I need to get a rubber mat to put under the stand, or mount between the saw and the stand top? If so would it make any difference which?