About this 3D model

I believe a lot of 3d printing enthusiast are sick of throwing the spool away... so do I... as it is non-environmental friendly... that's why this idea had been came out... at least we can contribute a little bit of helps to save the environment... Yes... This is a reusable filament spool... Now you can order the spoolless / non-spool / refill filament... with make well-use of this reusable filament spool... The prototype had been fine-tuned with re-adjustment of the gap between the threads... I got it printed and it just work perfectly... The photos shows the simple method of inserting the filament in the re-usable spool...