I have a problem with the extrusor of my prusa I3.
It’s MK8 extrusor but the filament when the extrusor push it, sometimes it sounds like clack clack, and when it sounds, the hotend isn’t extruding. The first extrusor I had was the one’s it comes whit the prusa that didn’t have any system to regulate the pressure of the gear on the filament, so I bought one that has a screw to regulate. But if I grip hard it sound clack and didn’t work, if i grid slow it haven’t got pressure to press filament to hotend. If i grid not hard not slow sometimes work well and sometimes didn’t work
Without pressure screw: LINK
with pressure screw: LINK
any help? thanks