I needed to flatten an Oak board for a table top, however I have a problem with my lower spine at present and using a hand plane hurts. So I went out and bought a belt sander thinking this should do ok and all I need to do is steer it and I should have a flat board. Things looked ok to start with no gouges and a resonable finish, but when I put on the straight edge the board it was like the back of a Donkeys hind leg. No doubt there is a technique to using one of these but at the moment I think it would be ok to use on fence posts. I reverted to the smoothing plane and within in an hour it was dead flat but 1mm thinner. No gain without pain !. What a fool I am to think one of these electric monsters could compete. By the way I have a cheap electric hand planer but again I would not put that near a board based on previous experience.