When printing slow and quiet I can hear a squeek every time the filament retracts and de-retracts. Is there a best practice for lubrication of the extruder? I’ve been keeping up with lubing the linear rails as it tells you this on the screen, but not come across anythign for the extruder online apart from ‘cleaning’ guides.
Wondering if I try to lube it, I may ruin it?
i have the same issues with the Squeaky Extruder and i am curious about a fix
Took it all appart and put back together… still squeey 
Same issue here. Just noticed it with a switch to another filament. Will try another one, but assuming that doesnt work, hoping to come back here to see someone successful fixed it!
Did a test print in another material, no squeaking. for now, seems my issue is Sunlu PETG squeaking as it rubs through the extruder.
Using Sunlu PLA Basic with a brand new A1. Dont think its the material…