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Hi all, I just purchased a jointer. I havee never used one before. The first board I tried to joint started off fairly square (sighting down the flat edge and joint edge it looked fairly square). When I was done with my jointer effort, the board was significantly out of square. If you can imagine the original board as viewed from the end measuring 3 inches wide by 3/4 inch thick. At the end of my effort the board is 3 inches wide, 3/4 inch thick on one side and 1/2 inch thick on the other. What did I do wrong?</p>