Mk8 extruder mod
thingiverse
Those Aluminium Mk8 Extruders have all that filament guiding part missing , well not all but the cheaper ones for sure, and it has been a pain to to change filament without that guiding part ! All you need to complete this is some small piece of PTFE (teflon) tubing to fit insite upper guide hole So here it is .. hope it can be helpful as much it helped me, enjoy!
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