Ultimaker 2 Extruder Gear Housing + 1.75mm & 3.00mm Conversion

Recently I have been running into an issue while loading filament in my printer where it gets stuck on a part of the housing for the tension bearing and jams up the material, before even entering the bowden tube! So I decided to try and fix this. I took apart the original housing, remodeled it, and smoothed out the edges along the filaments path. As I was working on it I thought I might be able to modify it to be able to be tight enough to use 1.75mm and 3.00mm material. After a bit of work, I t