Here’s a good one from a few years back. [Muranushi] built a scanner to automatically scan an entire book. LEGO is used as the primary building material. A book is placed on a LEGO balance (inset photo) with a counterweight that eases the work of raising and lower the book. The book is lowered, a LEGO carriage moves across the book to turn the page, the book is raised to the glass of an upside-down scanner and scanned into a laptop.
It seems LEGO and imaging devices are a great match. Most of the parts used here are from LEGO Technical set 8485, a set that comes with motors and a motor controller seen above, on the floor behind the computer. We’ve embedded some video after the break of a book in the midst of the scanning process.