I tried to find the proper part on thingiverse without success. I'm finding I'm getting better with Tinkercad and decided to try this so called easy build.

It's just the pressure knob for the bottom of the weed eater which holds the spool in place. When you put pressure on it new filament comes out without issue.

I've built it in both PLA and ABS.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/dPLuADuB30w

CORE A8 XY Slim DIY printer

No

No

0.20

20%

Nothing special at all. Print as it's shown, no supports ect. I wanted it stupid proof for people like me!