Replicator 2 filament tube mount

The semi-clear flexible tube that guides the PLA filament in my Replicator 2 started popping out of the clips on the back; the tube had many indentations from the two clips on the back of the Makerbot. On rare occassions, the tube would pop out and cause a failed print when the PLA filament got twisted and jammed. This simple part slides down from the top and holds the tube snuggly with a lot more surface area. The lower part of the hole where the tube fits is smaller in diameter so the tube