Prusa MK2S PTFE tube guide

thingiverse

I use a 4mm PTFE tube, like this one: http://amzn.to/2tuMLzz , to steer my filament directly into the printer. I employ this tube so that I can store my filament spool in a humidity-proof container with complete confidence. In the past, I had an issue where the PTFE tube would approach the extruder at a sharp angle, and sometimes the filament would snap near the extruder due to that problem. I created this guide to facilitate a gradual turn for the PTFE into the right angle needed for the extruder. This guide snaps securely onto the extruder, then you can simply slide your PTFE tube through with ease. (Check out the pictures.)