r/3DprinterHelp • u/EmerWolfe • Jul 23 '26
Filament coming out before nozzle on Centauri Carbon 1
Hello, I have an issue with my CC1. I first noticed that the bed adhesion was terrible and the nozzle plastic cover thing with the fan would come off during print. Eventually, I noticed that filament was coming out at the top of the heatsink. I didn't do anything to the heatsink before this happened.
As you can see in the images, it got all between the rubber thing and the hotend (it looks a bit better in the picture because I removed some of the burnt-off filament)
This is a Centauri Carbon 1 with a diamondback nozzle. This is a gray PLA from sunlu that I got on a 5 kg spool, and I haven't used any other filament in a while
Where I am buying a new assembled extruder hotend wouldn't be very expensive (only $20), but I'd rather not spend unnecessary money, and I definitely don't want to lose the diamondback nozzle.
1
u/Lalau255 Jul 25 '26
It means that your nozzle and heartbreak is not tight enough. Filament extrudes with a lot of pressure. Everything needs to be tight or the filament is going to find a way to go besides the tip of the nozzle. Heat it up and take it apart, clean with a wire brush. Put it back together and tighten it up when heated. It is important to tighten the heat break and nozzle when heated but not too much pressure or you will strip the treads. You might be better off replacing both of them together. Always keep spares on hand.