Trail

Try the roottrees are dead.

Aaaand blocked.

I'll try the calibration cube you mention with the specific filament at high and low speed versus another filemant and try to compare the results...

Hmm I read about this in the Bambu wiki now. Seems like it could have been an under-extrusion linked to this. I'll keep it in mind and fiddle with it next time I get similar behaviour and see if my current setting would have been near the max flow or not.

Kind makes sense because the first layer was nice but the second layer had the issues, and the first layer was printed much slower than the rest.

Howuch humidity do you usually have?

Today it printed very nice at 50% speed. What changed was the speed, drying the filament athough no weight loss so I guess was already dry, and cleaning again the plate.

I had a little bit of warping, even though I had brims, probably because it was printing for 20 hours instead of 10, but it was not very noticeable.

Still not sure what is the cause.

Oh for fuck's sake.

Well, the same filament has printed the same design 3 times successfully a few days ago.

But now I think I also recall a long time ago it was again this gray that would cause air printing on a different small multicolor print.

I have another same Bambu matte gray roll which is unopened (not from the same batch). I can maybe try to see if I get another air print to swap the filament and see if it improves. I guess the filament could have been too thick at some points in the roll maybe? It is mentioned to have +-0.03mm tolerance, maybe I should get tigher ones for 0.2 prints...

Well, I dried the filament overnight just to check, and the weight before and after was exactly the same, so I guess it was dry.

That said, I tried searching for root causes and tried asking chatgpt to see what it would come up with. After some bullshit replies, it ended up telling me that the Bambu matte filaments are bad for 0.2 nozzle due to their "heavy" additives that make it matte and can cause clogs or partial clogs while printing. It told me that other brands are better than it, including polymaker which supposedly is the factory that makes bambuatye filaments, and it also told me me that some colors, including specifically they gray I am trying to print with, have more trouble printing on small nozzles because of some white particles that give the gray color.

Now, I tried asking for sources for what it told me to double-check if it was true because generally I don't trust it, but it gave me nothing concrete. In theory what it told me could make sense. Does anyone know anything about this matter or had prior experience?!

Yes, 0.2mm.

If I recall it was set to 0.98, the default from Bambu for this filament. Cranking it down would be so that less material would be pressed into the nozzle in order to avoid clogging it? I can try that next time yes. For now I tried slowing it down to 50%, looks ok so far, but I am still curious to understand what is wrong.

I guess you mean the energy symbol. It's from the terraforming mars board game.

Well, why the fuck would they.