Or more building of the swift!
Switched to fine sandpaper on the disc sander. This cleaned up the edges nicely and allowed for some precession sanding to the line. Here are the edges with the circles still clamped together.
Finally! Our square wood is now round!
Now it’s decision time. Out of the 4 surfaces of the circles I need to choose the top of the Lazy Susan. Since this is the only surface that will be seen I choose the one with the most consistent color and grain.