I find that the spindle is a little too fast, but here is something I did about 18 months ago on the Shapeoko3
I hot glued a 3M Scotchbrite to the head of a 1/4-20 flathead screw, and then a piece of 120 grit paper to the Scotchbride (This acted a cushion/spring). I placed the screw (thread) into the 1/4 collet
