Ender 3 metal extruder filament guide for lead screw (updated 29.12.21 -

thingiverse

When upgrading to Creality's metal extruder arm, I ran into an issue where the metal would scrape the filament as it passed. This is because the original and upgrade parts have the feed-through hole at slightly different locations, and my old guide was too far off to the side causing the filament to enter the hole at an angle. Now I took Ragheera's design as a base and made the filament curve slightly around the lead screw. Now it enters at a smaller angle and doesn't get scraped by the metal hole's edge it is guided through. Update 29.12.21: After printing my original remix I noticed the squeal and screech was back after printing for some time, so I revised the hole size and position. I also made it shorter as to not waste material.