pi-scan

I built one of these out of pine 2x4s and plywood. I thought it would be cheaper than buying one (I was wrong) but I'm also not a skilled woodworker and had to buy most of the tools. It works quite well and I digitised dozens of textbooks I'd purchased and needed to reference but couldn't carry around every day while finishing my masters. My one had 2 Nikon mirrorless cameras controlled via Pi-Scan. https://github.com/Tenrec-Builders/pi-scan I had a smaller toggle switch wired to the GPIO pins so I could click the scan next button without having to take my hands of the book. Once I got used to the workflow I could scan about 1000 pages per hour while watching Netflix. I replaced it with a Czur scanner that isn't as good, but is a lot smaller and is good enough for my less demanding needs now that I'm not doing a masters degree :D

I made a hardware DIY Book scanner and run it off a Rpi using https://github.com/Tenrec-Builders/pi-scan with two Nikon J1 cameras. If you're not an experienced handy-person be prepared for frustration and spending more than you think on tools. Otherwise very happy with the result and experience. I can scan about 800 pages per hour currently. Once scanned I use scan tailor to adjust the pages then a small script to tesseract OCR them before creating a PDF. I typically do all the scanning while watching Netflix as it doesn't require a lot of attention once you get in the flow.