Poster/Document Tube

thingiverse

These parts enable you to transform a standard 3-inch paper tube into a versatile poster or document tube. Since the tube is the same length as the paper, it was originally spooled on, this conversion grants you an extra inch of space to prevent crumpling the edges and features a screw-on cap for effortless access. The caps fit snugly onto the tubes, eliminating the need for glue in my case. The straps are tightened securely using an M3 machine screw and nut.