Prusa Lack/Platsa filament feeder

This is a filament feeder very similar to the one from Prusa's Lack table design, but I've extended it by 8mm, added M9 threads, and added an M9 washer/nut combo thing to hold it in place.

After finding that the guide from Prusa's enclosure wouldn't stay in place very well, I looked for others here on Thingiverse. The one I liked best was @Rimbalin 's, but I found the inner diameter was just a little too small and caused a bit too much friction. (Sometimes tightly coiled PLA would snap as the