I can hear a squeek in the axis Y in the middle, its annoying.
I already watched the lubrication videos, I did it just like the video(with the bambulab oil) and the noise continues
I’ve printed 3 times only and the squeak started, I think the noise is from inside D:
I waited 2 month for the printer, What can i do?
Contact customer support and allow them to take you through any remediating steps
try making sure you don’t have any filament fibers in your y axis, the a1 has sort of the same problem, but much less often as it is fully covered. move each axis separately to make sure it is really the y axis, normally it is the z axis that squeaks and is fairly unidentifiable since it moves so little so often. if it is the z, then lift your printer, underneath the z axis motors are exposed, check for jams or anything that could be the cause of the noise. same with the top and bottom of the lead screw. make sure you lubricate plentifully as well, the more the better. you can always get more lube, less said about printers.
I had the same problem and I found a solution/workaround
The guilty piece (red arrow) is twisted and when it reaches the end of the rail, it collides more than it should. It’s not a solution but it is a workaround: apply grease along the entire blue strip.
Grease, not oil, but be careful dont touch de belt. Only the metal.
If somebody know a trully fix I’ll appreciate.
At least we know where’s the problem.
i had the same issue and unfortunately i had to lubricate the y idler pulley which is located deep inside the printer. basically to reach it you gotta disassemble the whole printer down to the y and z axes group. i am sorry dude
Oil the axes, all of them.
I solve my problem by free the tension of axis Y, in the back of the machine there are two screws and inside you can regulate the tension, in my case it was too much tension, No more squeek 
what screws you are meaning?
Does the base plate have to be removed for this? Are these all just screws on the base plate?
Oh, thank you!
Under the cap are the two screws to tensioning the belt, right?
Thanks a lot
The squeaking occurs due to the friction of the side of the belt against the side of the roller limiter (the belt on one side rubs more against the side of the roller), I added super small drops of grease along the side of the belt, the friction and squeaking disappeared, the main thing is not to get the grease on the surface of the roller to avoid slippage of the belt, lubricating the belt from above makes no sense at all
What I found was a small sensor at the back was rubbing against the belt. adjusting the sensor slightly away from the belt stopped the rubbing and stopped the squeak.
Hey guys! Sorry to hijack this old banger, but im experiencing squeaking too and im afraid to just “grease away”, so i thought i’d check in.
Is this similar to your squeaking?
And if so, what did you actually end up greasing? The literal side of the belt (A) or top of the belt (B).
I’d be extremely greatful for any pointers!
Mhh, all my media was declined. Do i need to be verified to post links and images?
Update: Seems to work now. Added missing media.
@pge
Bambu helpdesk sent me this video regarding the same problem:
Later I found this link with the detailed instructions:
Thank you so much!
This solved the entire problem excellently!
TY for posting this here! Was looking all over for a solution for this, will give it a try!
I have the same issue and the question is, what grease to use? Same as instructed with A1, PTFE grease? Because I got only an oil tube with my A1 mini combo…
Alright, finally figured out how to fix the issue I was having! My printer was quiet and great, then about 1 week in, it would make a sort of barking sound when the heat plate would move back (Y-Axis). I tried the lubrication suggested in the videos - no luck. Finally, I found a solution that has to do with loosening the Y-Axis slightly, and it appears to have completely solved the issue!
I thought I was loosening the Y-Axis earlier, but realized I was not doing it in the right place.
After you remove the 2 screws to access the back of the Y-axis, look for the screw that is under the visible one - it is in a gap. You will see there is some room for movements on both sides of it. Loosen, push forward slightly, then re-tighten.
I did not have to push it forward that much at all for it to solve the issue. I had to push harder than expected, but it worked.
After performing this action, if you receive an error from your Robot assistant on the machine that says it appears your Y-axis may be loose, rather than going in and tightening the belt at the same place I loosened it, I lined up the 2 screws with the wholes on the left side of the base and slightly tightened those. Machine sounds like it did on the first day.
