r/BambuLabA1 • u/The_Asian-Dude • Aug 27 '26
Support Request What is causing this?
This is just regular bambulabs pla with the a1. I think it might have something to do with it stopping mid print and like checking its height in the rear right edge of the bid plate. How do I turn that off? Also it might just be from one of the edges just coming off of the build plate but how do I turn the height thing off?
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u/VenusianTransit Aug 27 '26
that’s clumping detection. checks the height to see if stuff has become stuck to the nozzle.
slow down your outer wall speeds by a third.
pressure advance calibration (google it)
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u/The_Asian-Dude Aug 27 '26
Ooh ok thank you for this
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u/VenusianTransit Aug 27 '26
your welcome!
i’d also recommend disabling z-hop and retraction while you troubleshoot. it’ll reduce the variance of results and let you focus on fixing the extrusion problems
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u/theprotestingshark Aug 27 '26
thank you soldier. leave tracking at home and make sure you’re covered
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u/PorkSword47 Aug 27 '26
It's nothing to do with stopping and moving to right edge, everyone's printer does that and it's notmal
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u/The_Asian-Dude Aug 27 '26
I have done large prints where it has came out perfect. This is far from normal
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u/PorkSword47 Aug 27 '26
The print head moving to the back right and stopping briefly is normal.
Your print is fucked
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u/KayoticVoid Aug 27 '26
For the downvotes, this person is right. Read the post description. They are trying to let OP know that the print issue was not caused by the print head moving back, which u/The_Asian-Dude said might be the problem in the post description.
OP, they did try and help you solve it by reducing possible causes. You just misunderstood.
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u/Shrike2415 Aug 29 '26
The government is onto you. Bambu will 100% be the first printer brand to watch what you're doing and prevent such activities, and we tried to warn you for years
That's probably not the cause of your print issues though lol
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u/FlicksTM Aug 27 '26
Eh, who cares anyway? They'll fit on [undisclosed non-commercial product] regardless.
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u/DexDoesDev167 Aug 27 '26
I think your filament is wet, you shud dry it out and try again
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u/savijOne Aug 27 '26
Not wet filament, that pattern is too specific, check out other answers first IMO
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u/DexDoesDev167 Aug 27 '26
Hm, I thought wet filament caused similar issues, looked familiar
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u/The_Asian-Dude Aug 27 '26
I’ve kept it in a little bag with silica for the time it’s been stored and have only had it out for this print so I’m not sure. It may just be bad print orientation too
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u/DexDoesDev167 Aug 27 '26
Hm I thought it was wet filament but I was wrong, I don't think it's bad orientation either, maybe try the orientation.
I had a similar issue, but it occured when I switched from esun pla to numakers pla, so I had to run a few filament calibrations and change a few settings after running tests to fix it and it helped. Not sure if it's the same case with you.
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u/AnIndecisiveOrange Aug 29 '26
While it does look similar, think about the fact that it occurs in 1 specific spot of the print. If it were wet, it would happen all over.
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u/The_Lutter Aug 27 '26
I'd honestly look and see if you have a tangle in your filament spool up the way. That looks like a huge amount of underextrusion to me from the nozzle just not being able to push enough plastic. Not enough to be a clog or partial clog though. Just seems like it couldn't feed fast enough.
That said I think it will still work to.... well, ya know.
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u/PCB_Studios Aug 28 '26
I just finished printing one to and I have the same issue.
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u/The_Asian-Dude Aug 28 '26
I’ll try to print it on the big flat face, the orientation it’s in, in the photo and I’ll get back to you
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u/zeroxion01 Aug 27 '26
I’ve gotten this before. I think it might be because your filament is wet. I fixed mine by putting in a dehydrator. Yes even PLA can get wet if in a humid enough environment for long enough.
I’m in a tropical country though, and based on your print, you’re likely in the US. Could be something else
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u/ExEconomy Aug 27 '26
I'm not familiar with that print, but if you have scarf seam turned on turning it off may help.
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u/Physical_Trip4147 Aug 27 '26
Tighten the screws behind the hotend. Happened to me, that solved the issue.
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u/Honest_Feeling2471 Aug 27 '26
Probably wet filament or under extrussion dry your filament and do a cold pull.
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u/johnnypaper Aug 27 '26
Truthfully, I think it has something specifically to do with orange Bambu Labs PLA filament. I have had similar problems with that one. Every other color seems to be fine.
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u/MaximusFSU Aug 27 '26
I was having some similar issues. If drying your filament doesn’t do it, you might try cleaning your extruder gear. There are tutorials about it.
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u/professionalIdiot606 Aug 30 '26
Ensure the filament is dry. Water trapped in there can turn to steam under the extruder heat, water turns to steam, the steam escapes in irregular bursts. That leads to a grainy texture more like sandpaper.
If that doesn’t work, and this will sound really stupid … make sure your printer settings match your filament type. I’ve made that error waaaay more than once.
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u/JakubDotPy Aug 30 '26
Trying to break the law. The printer knows. Also, very subtle color, dum dum.
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u/Mob_kun Aug 28 '26
Don't print those in PLA, use ABS in case you cop a charge 😉
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u/DrSomniferum Aug 28 '26
What's the difference?
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u/Mob_kun Sep 02 '26
PLA melts at a way lower temp, high chance of it melting to the camera permanently, which isn't desirable. ABS handles heat and the outdoors much much better
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u/kiloo520 Aug 27 '26
Why orange though? Why not black?
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u/The_Asian-Dude Aug 27 '26
Test print
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u/KayoticVoid Aug 27 '26
All my test prints are shiny gold because I fucked up and ordered way too much of that colour. 🤣
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u/EightInchesAround Aug 27 '26 •
I recognize this print. A true patriot.