Ender 3 tight extruder

thingiverse

I designed this extruder remixing various extruders then started from scratch. It's very tight and is working fenomenal even with flexible filaments, I manage to print at much higher speeds with no clogging. It has a small guide that avoids clogging altogether unlike any other Bowden extruders. Simply use any extruder arm with a spring and it should be good to go.