Makerbot Extended Spool Holder

This is a reinforced and extended spool holder which mounts to the rear of a Makerbot Replicator 2 or Replicator 2x.
It holds up to 5lb spools without deforming and letting the spool either slip off the end or bind at the bottom against the Makerbot chassis.
So far, best results with ABS at 100% infill. PLA works fine also, but doesn't seem to roll the spool as smoothly.