You need to make an "L" shaped block that is exactly the same thickness on both legs of the "L". Then screw a backer to it. The "L" rides the table and the fence. It will raise the blank the same ammount that it offsets it. You rotate your saw blade exactly 45 degrees toward the fence. Run the piece through one pass, then flip the cut side up and do it again. Then turn the piece end for end and make cuts on the same two sides. You now have two "V" grooves. Glue the points in these grooves and trim them flush, not close to flush, be exact. Now do the same for the two sides that have not been cut yet. For best results, ensure your blank is perfectly square, the fence is perfectly parallel to the blade, the blade is exactly 45 dgrees. You have to experiment with scrap wood to get the blade height just right. It's not the easiest way to do it, but with patience, it is a very good and cheap way to get it done.Glenn Deneweth said: