I have an old Prusa i2 that, like an old car, has been getting some major part replacements lately after many many hours of service. Recently both the extruder and the extruder motor died. The ...

But it also looks like pillowing as well? I could clean my extruder but a set of new 1st party brass extruders is cheap enough that it's not worth the effort. No that is massive under-extrusion not ...