There are several pages describing the process of getting the board perfectly centered on the bit. The centering test cuts need to be in scrap stock the same exact width as the real project wood.
it’s been awhile, but once you get the bit perfectly centered you start cutting on the edge and move the fence, cutting the piece from edge to edge on each subsequent pass. You don’t actually start in the center. If there is any error in the centering it will show up on edge of board where it can be sanded, not in the middle of the board from turning it around and cutting from both directions.
it’s been awhile, but once you get the bit perfectly centered you start cutting on the edge and move the fence, cutting the piece from edge to edge on each subsequent pass. You don’t actually start in the center. If there is any error in the centering it will show up on edge of board where it can be sanded, not in the middle of the board from turning it around and cutting from both directions.