Scanners for unfastened papers have turn into so commonplace that nearly each printer consists of one, however e book scanners have remained frustratingly uncommon for non-librarians and archivists. [Brad Mattson] had some books to scan, however couldn’t discover an inexpensive scanner that met his wants, so he took the plain hacker answer and constructed his personal.
The scanning course of begins when a conveyor belt removes a e book from a stack and drops it onto the scanner’s mattress. Prods mounted on a rail beneath the mattress straighten the e book and transfer it into place for the overhead digital camera to take an image of the duvet. Subsequent, an arm with a pneumatic gripper opens the duvet, and a metallic bar comes down to carry it in place.
The page-turning mechanism makes use of two followers: one fan blows from the facet of the e book to ruffle the pages and separate them, whereas the opposite is mounted on a swiveling arm. This fan blows away from the web page, offering a delicate suction that holds the web page to the arm because it turns the web page over. Lastly, a glass plate descends over the e book to carry the pages flat, the digital camera takes an image, the glass plate retracts, and the scanner strikes on to the following web page.
It’s exhausting to think about, however take a look on the video within the put up in the event you actually wish to see it in motion.
All the {hardware}, apart from the digital camera, is managed by an Arduino Giga utilizing a CNC protect; the digital camera is immediately below the management of a number pc. The host pc checks every photograph to ensure it’s not scanning a previously-scanned web page, and if it finds that it’s scanned the identical web page thrice in a row, it assumes that the e book is completed. On this case, it instructs the Arduino to shut the e book, takes an image of the again cowl, and strikes on to the following e book. The design and software program for the scanner don’t appear to be obtainable but, however [Brad] plans to offer a extra detailed video someday sooner or later.
We’ve seen a few e book scanners right here previously. Some, after all, are extra helpful than others.
Due to [Stu Smith] for the tip!
