I know it sounds very crude, but when I had a larger router (Magnun 1200x1500, but sold when I downsized house/garage) I made a fixed dia. fly cutter (36mm) by brazing a lathe tip onto an M10 bolt head and cut off the thread. this surfaced the table easily and cost £0.00. I may even still have, and you are wellcome to it if I can find it. G.