My, nearly 50-year-old Roller furl ( a device for handling the front sail ( jib) of a sailboat) has begun to crumble. and needs replacement. It is a perfect candidate for 3D printing, but to have that done, I need a CAD file to give the printer. At this point, I am not sure if it will be less expensive to get it printed or buy a whole new Furler. See photos.