Had zero issues with my P1P and even printed this thing (MTG Commander Deckbox) today morning with some Sunlu Rainbow and It came out perfectly.
Wanted to have a white version but the corners/radius are kinda wasted/misshaped?What I tried so far:- Kfactor calibration & flow calibration.- turning the part 45° so its not directly in the X/Y direction- 2 different filaments: Sunlu Meta PLA and Bambulab PLA
Always the same issues and the problems occour right around the same Layer. At least it seems that way.
Thanks for your reply!
MVS: 8 mm³/s
Outer Wall: 200mm/s
Flow: 0,98
KFactor: 0,04
Nozzle 0,4mm
I tried the same part with Bambulab Filament (green) and used the standard settings provided. Same result sadly. I stopped the print a bit earlier. It does not seem speed or filament related…
really bad , not only the corner but the wall a bit as well
the K factor of 0.04 looks high for PLA , but varies
8mm3/S this will slow everything , usually most PLAs are around19mm3/S in X1C hardened nozzle but at least 12mm3/s should be ok
Similar defects i have seen in the following situations :
Bad flow and K factor calibration - I do calibration only with well dried filament, I do not use auto flow or auto calibration it is rubbish error and variation is too high and causes also similar issues sometimes
Wet filament many times I had perfectly tunned and then after a day or two bad results. Also on a brand new roll of filament before i dry it. Note that speeds bellow 100mm/S (everywhere) is less problematic. But since i keep everything dried for the External spool feed directly from drier. And storing the filament in a box with with plenty of silica , after has been dried. If i open a new roll let it dry at least for 8 Hours before start using it
On a new batch of filament the same color , same brand and type . it had different K and flow settings , so my original tuning was wrong
Temperature related , printing through the night and the ambient dropped bellow 15C
Cooling was a problem in the beginning once or twice
pull friction in the Filament , that happened only once with external roll
I often change the tensioner due to TPU , but if for some reason is not tide enough , causes similar issue - Unlikely for you but wroth checking . But would have see it on a few places with under extrusion defect
The fact that is happening a bit higher in the object , points to cooling or print temperature, Drying and or flow/k factor
The above excludes real mechanical issues , but i have not had almost any and when i did was really obvious , not with Bambu yet, but with Prusa and Ender
Thanks!
Normally the printer is in the cellar and I print via extended mesh WiFi.
I went down with my laptop and tried printing and observing…
And I noticed the cooling fan was on/off and doing weird stuff.
I plugged it out and in again and did a reset of the printer.
Now the fan runs smoothly again (I will order a replacement) and the print was perfectly from layer one again.
I went down to this slow flow because the meta PLA from Kayo is on a cardboard spool and need a ring adapter to work in the ams. When I went faster I got some stuck/blocked filament.
With 8mm it takes more time but haven’t had a related issue for now 3kg…
