Filament cutter squeak

Bambu Lab A Series Troubleshooting
1

My A1 makes a weird squeaky/creaky noise when it cuts the filament.

I thought it was a blade issue as I hadn’t changed the blade in almost 2000 hours, but it still does it after the blade change.

While, it’s annoying it gets SUPER annoying when you have to hear it 800+ times during a 27 hour print.

Also, my wife works from home and I’m pretty sure she’s about to throw the printer out the window.

Any ideas or suggestions on how to remedy the issue? Unfortunately (fortunately, idk) removing the wife isnt a super viable option.

Happens during any print that has filament changes and does it with any and all filaments.

Well, I was going to upload a video of it, but apparently that’s not allowed…so here’s a link to it Squeaky squeaky - Album on Imgur

2

It’s sounds like it’s taking pictures :grin:

3

First I was like WTF are they talking about…and now I can’t unhear it. Thanks :smile:

4

It sounds like the cutter is misaligned.

You should start the replacement process and swap in one of the spares you received. If it looks poorly seated, reseat it rather than replacing and try again.

5

How the heck does it get misaligned? There’s one slot and one screw hole.

But I will definitely try and see if that helps

6

I agree it sounds implausible but that noise is strange and this could be one answer.

7

No, like I absolutely believe you that it’s a possibility.

It was a literal question of how the heck does it get misaligned if there’s only one slot and one fastener.

I’m a diesel mechanic in my daily life, I absolutely understand weird implausible things happen all the time.

8

Mine squeaks with petg not pla

9

Same, happens to me only with PETG (Sunlu/Jayo)

10

My brand new A1 is doing the same squeaking sound when cutting filament with PETG (Giantarm). Did you find any solution for this?

11

I would guess it needs a little oil

12

Update: The AMS Lite unit was also squeaking while printing PETG. This went away when I took it apart (not recommended) and re-lubed everything. This seems to also fixed the cutting squeak for me as well.

13

how can lubing the AMS unit fix the squeaking noise cutting filament in the printer?

14

Depends if the squeak is the blade going through the filament, or the blade is rubbing on something else

18

I had the same issue, Only got about 50 hours on the printer, did my first multi color today and it started to annoy me.

After allot ot thinkering and trying stuff i ended up throwing a cutting blade from my P1S on it (because why not…). That did the trick. Looks like the color of the P1 cutting blade isnt the only difference to the ones of the A1.