About this 3D model

This spool is sized for 5lb rolls of loose filament. The grooves at the end of the arms are for optional rubber bands or string if you need extra tension on your spool. There is undoubtedly room for improvement here. I haven't made a holder - for the moment I bolt the threaded rod into a hole in my shelf - I may change that at some point, I'll put the files here if and when I make a holder. Well I've got it all printed out and loaded a 5lb coil - it took about 15 seconds. It works pretty darn good.