I recently started taking a deeper dive into 3D printing. No, I do not own a printer. No, I do not design things to be printed. But I've gone on a Google quest to see what kinds of .stl (stereolithography)...

One of my favorite place to browse in the world is the Withdrawn racks at our library. These are the media that have been pulled off the shelves and would wind up either as donations or dust collectors. Instead, my...