The next part for me is to design what I'm after on the computer using the shaping program AKU shaper. I already have a bank of shapes that I use and will change to suit what I'm building. From AKU I then send the file to the program Hollow Wooden board maker, which converts the shape into ribs and spine. Then I print these out and stick them onto marine ply and cut out using a jig saw. I then clean them up with a planer and file. This is the point where I will put concaves or vee into the board.