Hey guys, Any help trying to identify what is wrong with this one?
The first layer was pretty flawless except for the top-right side, where it looked kind of grainy. Maybe the plate needed cleaning on that side, but generally the adhesion is solid.
I was away while the second layer was printing, but apparently it failed and it looks like shit. When I got back, it was air-printing, still on the second layer as far as I can tell. However it seems like the nozzle was causing some of the artifacts to form, like maybe it was hitting the first layer or something? I am not sure.
This is on a Bambu A1 mini, with Bambu matte filaments. It is on a brand-new 0.2 nozzle, first print just out of the package. And the reason I got the nozzle was that I had some maybe similar failures before, where my previous nozzle seemed like was showing signs of clogging - i tried some cold and hot pulls, I could do some prints but some where failing so I thought to take this part out of the equation.
Any ideas what maybe could have caused something like this? The filament? I had tried drying it a while ago i believe, I can try again and I got a brand new one as well, but I wouldn’t believe so because the first layer seems pretty good at the beginning. Could the plate maybe being dirty have caused buildup of crap on the nozzle and lead to a failure? Could it be something I can try maybe with the Z axis (although I have no experience with this? I did another calibration now though). I had read about AMS tubes as potential reason, but not sure how to tell. Any ideas what to check?
For reference I am trying to print something similar to this in different colors. I have already done 4 prints in other colors successfully.
It’s always so hard to tell lol. I just know a similar thing helped for a similar problem on my Voron 2.4
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.
What OP meant was volumetric flow, not the extrusion multiplier. Volumetric flow caps the volume of plastic the slicer will ask your extruder to deliver per second. Fiddling with this value can help prevent under extrusion.
What you did by reducing speed is similar, but you could run into issues if you were to modify extrusion width or layer height.
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.