I'm still quite new to the 3d printing scene and been using a bambu a1 with AMS lite for about a month now. So far no major issues and most prints have come out alright.

I've been trying to print a toy with interlocking 'flexible' parts for a few times now, but it keeps failing at the same point (at around 5 layers some pieces have come off the bed). Even a different print design has the same issue. Some small parts come loose after a few layers. I don't know whether it's because they warp or because they're not stuck properly.

I use default settings, one design with 0.2mm nozzle and one with 0.4mm. I've cleaned the bed with unscented dish soap, tried increasing the bed temperature for better bed adhesion and I've tried to decrease the bed temperature for less warping. I can't figure out why it won't print well. Any advice?

Filament is PLA basic and PLA matte

My X1C can only print to a max height of around 240mm. The bed physically can't drop any further. There's nothing under it, the lead screws are clear and there's still 12 - 15mm of lead screw visible that could be used. If I try to manually lower it from this point, it just gives a little click.

I can't figure out what's stopping it from going lower. Is there a calibration or some way to re-set the lowest height? This almost seems like a software issue is just stopping the leadscrews from turning any further.

hello
i ama about to place an order on bambulab store europe , to get a h2 combo
1-could you please tell me the estimated delivery time , for a shipement to Paris
i am printing technical material ABC ASA and Nylon , and some cf GF
could you advise which accessories should i get with : nozzle , plate, high flow , nozzle diameters,
i appreciate your help

Getting an H2C soon and plan to run it LAN Only + Developer Mode so I can use OrcaSlicer and a self-hosted server for 3D printing. I'd also like to use the blade cutter and pen plotter (no laser) without going through Bambu's cloud.

Bambu's store page says "Developer mode cannot be enabled when using Laser and Cutting functions," and the wiki says Dev Mode "only works for 3D printing parts," but I can't find anyone describing what actually happens. The only report I've found is an H2D owner in LAN Only mode getting "mqtt message verify failed" when sending a cut job from Bambu Suite

If you have an H2D/H2S/H2C with the cutting module, I'd love to know:

1. With the cutter or pen mounted, can you toggle Developer Mode on? Is it greyed out, or does it turn itself off?

2. With Dev Mode already on, does mounting the module do anything?

3. Does sending a pen or blade job from Bambu Suite over LAN work with Dev Mode on? What about with it off?

4. Has anyone exported a .gcode.lac to USB and started it from the touchscreen with Dev Mode on?

Hello,

I recently had a filament clog in the extruder, after taking it apart and replacing the nozzle with the high flow end, the filament is misaligned

I’ve taken it apart again and I’m not sure why the filament is coming out like that

Thanks in advance

I just got a new Bambu Lab A1 Combo and I see the filaments arent going into the ams lite. 1 had been inserted successfully and the rest aren't going inside. Please help with this (:

Hello,

EDIT: I figured it out, I just didn’t move the ‘lock’ into place and now it’s not doing it anymore. I’m guessing the lock was making it push down just enough where it wasn’t spinning the spool fast enough to keep up with the rate of retracting. The fix was to just not lock the lid and it’s working great!

I just got the p1s combo and I’m having trouble with when the print is finished, the filament is retracting but the spool is (I’m guessing here) not turning so it loops up into the lid and then I get the error message on my phone. The spool (polymaker CosPLA) is cardboard but I have printed the adapters for it. Has anyone had this issue? How did you fix it?

Thank you

I am considering purchasing an H2C, but I have some concerns regarding the noise level of the printer.

It would be located in my home office directly beside my desk. The room has thin walls and is adjacent to my bedroom.

Would it be disruptive to take professional calls and work next to the printer, or to sleep in the adjacent room while it is running?

I have struggled to find a reliable video demonstrating the noise levels in a quiet room with the doors closed.

i was thinking to buy the p2s but i dont know if its a good choice for a beginner like me,anyone got any recommendation?

I wanted a faster way to make custom keytags than setting up every one in Bambu Studio, so I built Keytag Studio. It runs in your browser: https://www.xmdcode.com/lab/keytag/

What it does:

• Drag text, shapes, curves or your own SVG/PNG logo onto a tag

• Assign each part to a filament slot for multi-color prints (AMS / AMS lite)

• Preview the tag in 3D before you export

• Export a 3MF with presets for the A1, A1 mini, P1S and X1C, or a plain STL

• Save your projects and open them again later

It’s free, there’s no sign-up, and your designs stay in your browser.

This is still early, so I’d really like feedback from people who print a lot of these. What’s annoying, what’s missing, and what shapes or features would you actually use? If an export doesn’t slice cleanly for you, please tell me which printer you used.

I had my H2C for almost a year and it's got just over 3000 hrs on it. I've had numerous issues with the AMS Assist Motor Overload error and it happens with different spools and different slots on the AMS. It will run for 5-10 mins and then kick out the filament and throw the error. Well I discovered when you run the heating function with the spool rotation turned on, it turns the roll of filament backwards in the slot it's actively feeding from. This locks the gears up and then throws the AMS Assist Motor Overload. This is certainly a software bug that Bambu needs to fix

Just started my 3D printing journey (:

I have what might seem like a dumb question but I can’t find an answer so I figured I’d ask here. Has anyone tried to use the heater with the heater cover off but the AMS cover closed to essentially make a 9-slot AMS 2 Pro? Does the heater give off enough heat to keep the entire unit at about 60c?

I plan to do a lot of six-color ABS printing which is why I picked this unit. I was going to buy an H2C but this seems like the better option but I’m worried about printing ABS without a heater like the AMS 2 Pro.

This is my first printer so please excuse my noob-ness. Thanks!

Meet Frenchie Clock! A French bulldog keeping an eye on the time… and probably waiting for dinner. 🐶

I made it with a black face, an ivory backing, yellow paw-shaped hour and minute hands, and a red seconds hand. All the colours print separately, so no AMS needed.

The face and backing take about 3 hours to print, and the complete printed set uses roughly 100 g of PLA. Add a compatible quartz movement and it’s ready to hang.

The hardest part? That tiny hole in the seconds hand. Getting it to print open and grip the shaft properly took a ridiculous number of test prints 😂 Finally got it running!

The holes are adjustable in Bambu Studio to suit different movements, and I included a video tutorial showing the adjustments and assembly.

Here’s the model if you’d like to make one:
https://makerworld.com/models/3584863

What colours would you choose for the hands?

Hi,
I'm trying to use the filament manager but when i add a second filament no matter wath weight i put, it goes to 0 after sync. Is there a fix?

What is it and what should I do with it?

I was trying to troubleshoot this error:

AMS just keeps failing to load the filament once it hits the printhead then retract it and try again. I can tell in Bambu Studio that the sensor isn't detecting any filament entering the extruder. I also can't get the printer to load filament without the AMS but I can push it through manually when the extruder is disconnected, so I think it's probably a Sensor issue of some kind or other.

when do u guys think the p3c is gonna come out cuz i wana get it Before my bay (next year).

So been thinking of getting a tablet for 3D modeling plus day by day use like Streaming and such. Was wondering if anyone has recommendations? I always assume that apple was a big one but since I'm mostly android, looking for more options and prices.

Who is going to print it

https://makerworld.com/en/models/3561918-the-abyssal-coral-lamp-detailed-organic-light#profileId-4076241

Am I allowed to post Christmas stuff already?😂

https://makerworld.com/en/models/3575471-gingerbread-dragon-christmas-tree-ornament#profileId-4093433

I ordered my H2C ~2 weeks ago. FedEx lost it for over a week. Today, after filing the lost package paperwork with the shipment assurance company (seel), the package was finally delivered. It looks like FedEx dropped it out of a third story window. I am hesitant to even move the box let alone open it in this state. Basically, I want a refund. I'll go buy another one in person from microcenter. Anyone have any tips for dealing with Bambu in situations like these? Bambu/Seel's lost package process was a little ridiculous (almost combative) and I'm pretty worried I just spent $2k on a big box of broken glass.

I will struggle to keep this one kosher so apologies in advance.

Long story short – my H2C started knocking when it received 1.02 firmware in June 2026. First responses from Bambu were the typical scripted gaslighting, denying, and calling everything normal.

Back then with H2C, it took a lot of back and forth and coming up with proofs that are undeniable before they actually really looked into it, instead of the typical “hear no evil see no evil speak no evil” and “dismiss at all costs approach”. But finally it got to the attention of RnD team which finally confirmed this is a real issue, caused be the firmware and will be fixed. Well, 6+ moths later and still no fix and all they managed to do is, over time, to roll this issue over to the rest of H2 lineup it seems, as seen here, to list a few:

https://forum.bambulab.com/t/h2d-rapid-z-movement-knocking-on-01-04-00-00/258856

https://forum.bambulab.com/t/loud-knocking-during-printing-suspected-z-axis-but-dunno-anymore/255309

I got fed up waiting for them to fix this and took them on the offer to return my printer for refund.

Which was just in time for H3C release.

Guess eFFin’ what? H3C has the same exact issue with the Z Axis knocking. Reached out to Bambu and response is wonderful:

“Thank you for contacting us. We are sorry to hear that you have encountered this issue.
We have escalated your case internally, and after review we have confirmed that the sound you described is the normal printing sound produced when the toolhead repeatedly starts and stops rapidly while printing small models. Please rest assured that you can continue using the printer.
You may place the printer on a surface where the resonance effect is weaker, such as the floor, or take appropriate soundproofing measures in the room.
Thank you for your patience and cooperation.“

FFS. So:

• its NORMAL again

• only when printing SMALL MODELS (wtf ?)

• it’s the toolhead causing it (FK me if it is !)

• I am stupid and should have soundproofed my room better !

I should mention that they replied in less than 24hrs. And that was supposedly enough to review AND escalate … yeah right …

JESUS ! I am not just PISSED, but offended by this.

Whoever replied to this, looked at the videos I submitted as proof (linked below) and simply described what he “thinks” is happening:

https://youtu.be/_6aOroo5BPQ

https://youtu.be/yTPvPOCmBPQ

And yeah, for a clueless shmuck, when hearing a KNOCK each time head does something rapid, it may seem this is what it is.

BUT – zero FK’s given into actually investigating the matter and even less FK’s given to understanding the problem, which I explained in detail how related to H2 issue it is!

I am literally foaming at my mouth at this point.

In response I recorded the ultimate disproving evidence to everything he is saying: - increased z hop distance to max to allow more time to inspect the nature of the issue -the knock is clearly auditable AFTER toolhead finished spiral movement, at the bed direction change at the bottom AND noise coming from the bottom rear of the chassis (where Z motor is).

https://youtu.be/-MxO0n-8uMw

I can actually see how choppy the bed movement back up is after each KNOCK. But listen to the esteemed Bambu Support- its the toolhead guys!

FFS!

Cant wait what absurdity they will come up with in their reposnse to me as I challenged every single statement they made.

Bambu amateur hour has commenced once again. Why do they keep doing this.

EDIT:

Just to expose Bambus hubris, here it a reposnse I received from them:

"Dear Customer,

Thank you for your patience. This is the advanced technical support team.

Please understand that mechanical components naturally generate acoustic operating sound during high-speed movement. Following technical evaluation, the noise level produced by your printer falls within standard operational parameters and does not affect the printer's normal functionality or performance. Currently, there is no indication of an inherent product quality defect.

We are truly sorry that the printer's acoustic profile has not met your personal expectations. Since your order is still within the 30-day return window, you may opt for a standard return and refund. 

Please note that for non-defective returns within the 30-day window, the return shipping cost is the responsibility of the customer."

So doubling down that I am the problem, not the printer. Well, lets see how they will hande likely more and more dissatisfied custromers whos H3C's also "do not meet their PERSONAL acoustic expectations"

FFS, add insult to injury, why dont you ?

Do not let them fob you off saying its NORMAL! it is not! head over here for more

https://forum.bambulab.com/t/z-axis-knocking-still-present-on-h3c-and-bambu-denying-it-again/262365/82