You can get decent ocr from using thinner books to level the pages by supporting one side of a book as you flip and holding open with your hands. Source: I have

You can get decent ocr from using thinner books to level the pages by supporting one side of a book as you flip and holding open with your hands. Source: I have ocred approx 200,000 pages this way for one of my websites. It is not the best, but it works surprisingly well as a poor man's just get it done method. Aim for at least 300 ppi and ABBYY can figure it out. 200 ppi still works well.