Filament Tube Holder - MakerBot Replicator 2X
I made this to help prevent the filament from unspooling and winding around the spool holder between my Replicator and the spool by holding the filament away from the back of the case. It seems to work quite well for me. I also found that when I tried to put it on the tubing holder, that I needed to slot all the way around the the holder and not just the slots I added. A little filing or cutting works great. It's was designed as a tight fit.