Hey, I ran out of space, that's why I made a spool holder that can be hung from the ceiling. You could theoretically just use a rope but i was worried the rope might wear out so i overengineered it xD You need rope and optionally skateboard bearings. Assemble like in the pictures. If you don't use bearings, just print the Role that should do the job just fine. I tied little rings to the ends of my rope to make it easy to disassemble, You could certainly print these, but I used some I had flying around.