I have a laundry list of problems with this printer.
Some kind of black liquid is pouring out of every part or the extruder and it’s ruining my printing
And when I print, no matter what program I use, the printer always moves the second layer out of alignment.
What color are you printing with?
Looks like black.
It also looks like the nozzle is not tight enough.
Do not try to tighten cold you will break it.
Heat to 190C for PLA.
Remove the white Teflon tube
Gently grip the top nut with pliers and use a 13mm wrench on the nozzle to tighten it.
Use small increments as this is a very fragile part.
Reassemble and retry your print and watch for leaks.
Looking at your picture I don’t see the black washer that should go over the barrel.
I’m using the “natural” colour plastic and I never used anything else.
I also already broke one nozzle bz trying to tighten it, but that black stuff seems to come out of no were.
Kind of thinking about buying a different extrude, so any recommendation would be much appreciated.
The black substance has to be overheated natural filament then.
Even if the hot-end isn’t too hot filament material will degrade if kept at elevated temperature.
If it hasn’t leaked out, then the only time I’ve seen a hot-end covered like that was when I had an unattended print break off the bed and it gradually melted onto the hot-end.
Hi,
I had a similar issue with my K8200 printer last week, even worse, the extruder was completely clogged.
The K8200 did not print anymore at the recommended 190°C, even not at 220°C.
I extremely heated the nozzle to 260°C and suddenly, the same brown/black substance, as in your pictures, dripped out.
I kept it dripping till nothing came out anymore, I dismounted the extruder gear and pushed filament till the natural colored PLA came out.
After mounting the gear again, I started printing a simple object.
Occasionally, the brown/black substance came with the plastic, however, this stopped after a few minutes.
I’m not sure if this happens only with natural PLA (I did not use natural PLA before).
The last 6 months, I used a lot of PLA colors, but so far, only saw this now with natural PLA.
As Paul compton wrote, this is most likely overheated PLA filament.
I think, this will be a maintenance point, which have to be don on a regular base, to keep the nozzle clean.
I hope this will solve the problem you have with this PLA type.
Thank you for all of your responses.
I have discovered that the isolation on the ntc fell apart and it was directly in contact with the casing, and I also discovered that the ntc’s resistance isn’t right.
It gives me 115Kohm at normal room temperature. Now I’m looking for a new way to isolate it and trying to find a replacement.