3d Printer Issue

fabians_life · April 17

Hello, my prints have been failing lately.

I have a ender 3v2 with BL touch and a 300C hotend. I have installed the firmware for it, so that shouldn't be the problem. I am printing PLA. Sometimes the extruder gear just stops feeding the hotend. It still turns, but the Filament doesn't move. I cleaned the extruder and I don't think it is the problem. After another failed print, I disassembled the hotend and found it very dirty. Is it the hotend or the filament or something else causing that? My filament is blue by the way. Any answer would be appreciated.

OddOod · April 17

16 minutes ago, fabians_life said:

It still turns, but the Filament doesn't move

That's likely one of three problems: dirty nozzle (should be an easy clean which you already did), bad filament (if it's not perfectly consistent and has thin areas, the feeder can fail to grip), or the feeder is wearing out

18 minutes ago, fabians_life said:

I disassembled the hotend and found it very dirty. Is it the hotend or the filament or something else causing that? My filament is blue by the way

This is just kinda the way with printers. They get dirty.

manikyath · April 17

i see some blue in the threads of the hotend, i'm gonna guess some crud just leaked out over time and caked on some dirt.

a 3D printer is in essence still a piece of industrial machinery, you're extruding plastics with additives (dye, probably some other stuff), sometimes it's just some annoying piece of gunk that's stuck.

if you heat the extruder to printing temp and feed while the print head is away from the print bed, it should come out straight and vertical. if it comes out sort of to one side, your nozzle is dirty.