Prusa MK3s Easy PTFE for Flexible filaments

thingiverse

I have a few MK3s's and a few MK3s+'s, and I always liked how the MK3s+ had the build in drive gear cone built in, as opposed to having to cut them out of the PTFE tube as for the MK3s (I hate cutting PTFE tubing). Over the week-end one of my MK3s needed some TLC, so I decided to add the missing collar to the MK3s part without having to replace the entire extruder body parts and the filament sensor, etc etc (without having to turn it to a full blown MK3s+). FYI that little collar is what makes printing flexible filaments of FFF printer possible, prevents the filament from bunching up. So here is a drop-in replacement for the MK3s to provide MK3s-like PTFE tube collar for easy flexible filament printing. enjoy.