Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4777856.

I am not sure if everyone is bothered by this. But when loading filament to the extruder, I often find the filament gets as far as the fitting on the Bowden tube and gets caught on the face of the fitting. Cutting the filament to a taper does help some but, I needed more. So I designed this fitting to go between the extruder and the Bowden tube fitting. It has a flare on the extruder side that guides the filament to a 2mm hole inline with the tube. I printed with walls set to 99 and infill to zero. Depending on how well this prints for you, you will likely have to run a 2mm or 5/64 drill through the hole to get the correct size. The threads will also likely need the attention of an Xacto knife.