This filament guide needs have a PTFE liner insert into it and may need to be drilled out for the PTFE liner to fit. This guides it directly into the extruder and will help you print more flexible filaments.I recommend printing in ABS if your printer will be enclosed. I used S3D for support.
I'm a 3D printer and manufacturer operating out of Copenhagen, Denmark. I also provide design support and traditional manufacturing consulting. Read more at http://www.protoneed.com