Same problem, right now I’m testing with a bambu sample including with my A1.
Yeah ill try seeing if their filament is any better some people are saying hardened ste nozzle fixes it but idk and there out of stock
I am also having layer shifts does anyone know why these problems are happening I’m having stringing and layer shifts on larger prints
I also had a lot of stringing issues on my A1; I also ordered the nozzle set so I replaced the standard 0.4mm stainless nozzle with the hardened steel one. The stringing is almost gone now.
I also notice random layer shift issues and the printhead knocking over prints at overhangs.
I’ve read about the hardened steel nozzle, but I’ve opened a support ticket. In my opinion, the solution can’t be to buy a new nozzle.
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Bambu labs replied to my ticket they said For your issue, it is recommended to clean the guide rails and tighten the belts.
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I also have the same stringing issues from day ONE and would like to know if there is any news on this. Buying a new nozzle can’t be the only solution…
I bought the steel hardened nozzle it actually has fixed the stringing but I have still noticed some imperfections
Late to the party, but i hope this will help some of you with a specific stringing related issue. I had stringing problem but in a different way.
Luckily for me I had also printed at the same time the answer to my problem.
I was testing the 0.2mm nozzle and printed a very small,detailed and tall model, and because i needed that part multiple times i have printed it 4 times in the same run on the same plate. One of the 4 samples was absolutely destroyed by stringing, and the rest were perfect.
The reason was the “retract on layer change” setting followed by the “wipe while retracting” default settings. You can find the settings under the Printer settings → Extruder (tab) → Retraction (section).
I could clearly identify the problem because after every finished layer, the nozzle went for cleaning, and the 1st model it was returning to for the next layer, was the destroyed model. All the other copies of the same model were perfectly clean. So the issue was very obvious, and came from that (IMHO useless) option checked by default in Bambu studio slicer.
I’m not sure the purpose of that function, but feel free to correct me if i’m wrong. All i could see is no stringing after I’ve unchecked the two options. The firmware has a lot of rough bits at least on my a1, but that’s another story for another thread.
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Doing the retraction test in orca slicer unfortunately made 0 difference with your settings @razvand21 . I’ll wait for my hardened steel nozzle
Watching the Orca Slicer retraction test print I can clearly see that zhop creates a little point of filament and then the nozzle comes back and smears it around the next layer causing the stringing.
I’ve had my A1 mini for only one week. First few prints were perfect, then I tried the 0.2 mm nozzle with PLA sparkle - I now know sparkle is not compatible with 0.2 mm nozzles. However the printer/AMS gave no warning message about incompatibility before printing, and the sparkle roll also came with no warnings not to use with 0.2 nozzle.
So, PLA sparkle clogged the 0.2 nozzle and jammed the extruder, causing the gears to audibly click as it tried to feed into the blocked nozzle. After clearing the jam and re-installing the 0.4 nozzle, all of my prints have been awful, with extrusion after the extruder stops and much stringing.
Last night I opened up the extruder, and can see what appear to be sparkle fragments fouling the extruder wheel teeth - I need to find a small wire brush now to see if I can clear these out but suspect this is the problem.
Not sure why not. They’re cheaper than a roll of a filament and are going to get clogged and worn down, especially with how much most of us use our A1s and minis (as much as possible). I swapped a PTFE tube yesterday and it was comically gray even though it was clear 7 weeks ago when I got the printer. They should have included an extra hotend or at least make their nozzle replaceable like some of the generic ones on Amazon. I keep a few extra so I can swap them and rule out error, them clean them once in a while with mini blow torch and poker.
I have two A1 Minis. Both string on more intricate prints, while my P1P does not.
One of my minis has over 350 hours of print time. The other has just 40 hours. Both string equally.
I run only Bambu PLA, and I use dry boxes to keep the filament nice and dry.
Based on the fact that both printers do the same thing, and 1 is only a few weeks old, it appears to me to be a flaw in the printers. Whether hardware or firmware I can’t tell.
What are you trying to print where stringing happens? Do you try to slow the print down?
I’m very late to this forum but I’ve had the exact opposite issue as everyone else. I’ve had the A1 since January of this year and just replaced it for the heatbed recall and both printers have printed absolutely amazing.
I also just bought a (micro center) refurbished X1C and have noticed an insane amount of stringing on this thing.
I swapped the same exact filament I was using in the A1 and the issue kept persisting on the X1C.
Any idea why this can be happening? I’ve barely had the printer for a few days and am so bummed about this.
We can’t really help you with the x1 catbon, you need to poat in the x1 carbon area rather than in the a1 mini/a1 area.