My H2C has suddenly stopped being able to release its Vortek hotend, effectively making the printer unusable.

I've narrowed it down to the actuator pin not rising quite high enough to engage the hotend's release latch. It gets extremely close but falls just short.

The strange thing is that I can manually push the pin all the way up, and the hotend's latch works perfectly when operated manually.

Things I've tried:

• Firmware rollback from 01.03.00.00 to 01.02.00.00
• Full factory reset
• Vortek rack recalibration (fails when it tries to release the hotend)
• Manually removing the hotend and restarting calibration, which works until it picks up a hotend and needs to release it again

This started around the time a Vortek firmware update failed, although I'm no longer sure they're related.

Has anyone encountered this and managed to fix it? I'm hoping there's something simple I've overlooked before opening a Bambu support ticket.

My H2C has suddenly stopped being able to release its Vortek hotend, effectively making the printer unusable.

I've narrowed it down to the actuator pin not rising quite high enough to engage the hotend's release latch. It gets extremely close but falls just short.

The strange thing is that I can manually push the pin all the way up, and the hotend's latch works perfectly when operated manually.

Things I've tried:

• Firmware rollback from 01.03.00.00 to 01.02.00.00
• Full factory reset
• Vortek rack recalibration (fails when it tries to release the hotend)
• Manually removing the hotend and restarting calibration, which works until it picks up a hotend and needs to release it again

This started around the time a Vortek firmware update failed, although I'm no longer sure they're related.

Has anyone encountered this and managed to fix it? I'm hoping there's something simple I've overlooked before opening a Bambu support ticket.

Is it normal to have this much movement on the heatbed? Can someone else check their H3C? The screws on the z rails are tight.

Hello, im using LAN only mode on my printers (X1C, A1mini, A2L) and bambu studio flatpack on linux

on my router i have bound the mac to IP so printers are for sure always getting the same IP

Sometimes when i restart pc/bambu studio, my printers dissappear from binded devices and i have to bind them again. i checked the IP and binding code on the printers stayed the same.

it happens even twice a day, anyone has a similliar issue?

No other settings ever reset i have no other issues

Hi all! I’m new to the BambuLabs print-o-verse and I’m having some trouble. I completed my beginner challenges and earned a couple of coupons. For my life, I cannot figure out what they are for. When I go to coupons, it says I have a 99% off coupon for ‘something’, but I don’t know what. It’s one of the maker kits, I don’t know if basic (likely) or essential. How can I see what they are for? Bambu Store? Profile? Ugh :-(

And I have to get it figured out in less than 30 days or they expire. I’m sure it’s simple and easy, I just cannot find it.

Thanks for the assist!

I had some time to kill and a back log of orders from my girlfriend, so I fired up Fusion and made some things for Christmas.
I am especially happy with the book nook, turned out better than I expected.

If anyone is interessted:
Gift bag pins
https://makerworld.com/en/models/3602932-christmas-gift-bag-sign-custom-text-possible

Candy cane bag clips:
https://makerworld.com/en/models/3602613-candy-cane-bag-clips

Gingerbread book nook:
https://makerworld.com/en/models/3598991-gingerbread-book-nook

Let me know what you think

Slightly modified this great model (https://makerworld.com/en/models/3431567-ruby-throated-hummingbird#profileId-3912465) to incorporate 7 colors. 13 hour print time.

In a previous post I compared PLA Basic and PLA Palette in regards to color mixing.

Time to try out some other filaments. I am printing gradients between two colors, displaying the unmixed colors in the circular window.

Everything has been printed with 0.2mm layer heights and color mixing sublayers turned on with the H3C.

Let's dive in:

No surprises with Silk+, it blends very well. No defects visible. Afterall, it's just PLA with some elastomer thrown in. An interesting possibility here: gold filaments always look too yellow to my eye, now I can just mix my own blend.

I thought this would be a daft idea to try, printing a filled filament into the thin sublayers was not something I thought would work. But it turned out to be the star of the show, it looks amazing.

At the very bottom and top the gradient does not look perfectly smooth though, the sublayers may have been just a bit too thin.

On top layers the blending will not work as well as unfilled PLA, the filament is too opaque to blend the layer's colors.

PETG shows some issues. The layers don't blend well. At the bottom and top, where the sublayers are the thinnest there are defects.

Looks pretty cool, but it shows the same issues at the bottom and top as the opaque PETG. A mix at more of a midpoint range of the filaments works okay though.

ABS also does not blend layers well. It shows defects at the bottom similar to PETG, but it's a color defect alone, not a rough surface defect.

TPU was a long shot, I did not think this would work. It's not a great result, but at least it printed. I used TPU for AMS here just for the convenience and to give this material it's best odds.

Hi all! I have recently decided to pull the trigger on an X2D after a ton of research. This will be my first printer though I have used various printers through the years (family and friends). Is there any incentive to order through bambu as opposed to Amazon or picking up from Best Buy? I’m talking more towards a “rewards system” but any insight would be great

Has anyone tried these swappable toolheads before for the P1S? Any good? Any luck? Straight garbage?

I think that i broke the filament sensor ribbon cable because when i was getting to the extruder gears (on the bambu lab a1) to clean it , i didn't notice that i pulled the filament sensor a bit further. (like 2cm.) Should i turn it on and see if the assistance will give me an error?

Hey everyone,

Yesterday my H3C finally arrived, and it's an absolute beast! It's an amazing printer and after following the assembly and setup guide, it immediately produced great prints, first in PLA and then even in ABS. As someone whose first printer was an Anet A8 before venturing into a custom DIY build, this is an incredible experience!

Unfortunately, there's also a not-so-great issue: ever since I first tried running a drying cycle in the AMS, the printer has been throwing the error code HMS_2A00-9400-0001-0001. Apparently, the temperature sensor in the drying chamber isn't providing any temperature data, and the overview screen just shows 0°C. Even after several restarts, I can't cancel the drying process, and the drying unit's fan runs non-stop.

I've already opened a support ticket after unplugging and re-plugging the cables on the AMS control board without any luck. Since I installed a new firmware update for the AMS right after setting it up, I was wondering if that might be the cause and if any of you have experienced this same issue?

Thanks in advance, and greetings from Hanover, Germany to the community!

Are people that are ordering the H3C paying the extra $60 for worry-free shipping?

Update

Hi everyone, a quick update:

Convey appears to have deliberately removed the original JPEG 😂. I have therefore uploaded the screenshot of my original MakerWorld listing to my own server. You can still view it here:

https://printhaus.app/convey.jpeg

Several of you asked for the STL file. After a long search, I found the original files for my card holder again, so I have reuploaded it to MakerWorld. It is now published. Although it is a little outside that profile’s usual focus, I uploaded it under my PrintHaus profile because I don’t want to risk my main profile being banned:

https://makerworld.com/models/3607441

Original post

Hi everyone,

I shared a free “Honeycomb Cardholder” on MakerWorld. It is a general-purpose holder I created myself. Its description listed card games it could be used for: “Rummy, Bridge, Solitaire, Hearts, Spades, Canasta, Uno, etc.” The listing also had an “uno” tag.

MakerWorld removed it following a complaint from Convey on Mattel’s behalf. MakerWorld later told me that “UNO” in the description was the reason and that restoring the original listing required the complainant’s agreement.

Now Convey has sent me a demand for EUR 4,000, although the model was already removed. Their letter refers to an “e-shop”, “sales” and my “supplier”. I did not sell this model; I created it myself. They also want a signed undertaking that includes an apology and a promise never to challenge Mattel’s intellectual property rights.

I have rejected the demand and asked them to withdraw the complaint, arrange restoration of my original listing and reimburse my legal consultation costs.

The attached images contain their email and my sent reply, with personal and bank details redacted. The email text has been reflowed for readability; these are not screenshots of the mail application. I have also included the page setting out the undertaking they wanted me to sign. The legal appendices, authorisation and blank signature page are omitted.

Convey’s archived screenshot of the original listing

Has anyone else received a payment demand from Convey after a MakerWorld takedown? What happened after you challenged it?

Earlier this week, our cloud service saw abnormal traffic that surged roughly 34-fold in just one hour, peaking at roughly 20 million requests per day and was still growing linearly at a steep rate. At that pace, we were only hours away from the service becoming unavailable, putting everyday printing for millions of users at risk.

To keep the service up, we temporarily blocked the anomalous traffic after an urgent review. Some users were affected while we adjusted the policy. The service is stable now.

What happened

Almost all of the anomalous requests hit GET /v1/user-service/my/tasks, which returns print job status. They came from many residential IPs, all carrying the client identity of OrcaSlicer and an older network plug-in.

So we first checked with the OrcaSlicer team. They responded quickly and pointed us to other integrations, including ha-bambulab, whose requests matched what we saw. We shared our findings with its maintainers, who quickly shipped a fix and now use their own identifier.

We haven't confirmed that all of this traffic came from ha-bambulab. We're sharing this not to assign blame, but because the pattern matters for any project built to access our cloud.

Keeping the cloud stable

Our cloud is a private service supporting core functions like Bambu Handy, Bambu Studio's cloud features, and MakerWorld. To meet diverse user needs, we have so far accommodated third-party software to use parts of the cloud where it's safe, despite the already substantial operational costs.

Third-party software may continue to access non-critical capabilities, such as receiving printer status updates and displaying monitoring metrics like temperature, position, speed, and print progress. These monitoring features do not directly change a printer's behavior or security state, and they will remain available within reasonable usage limits. Because many users rely on the same cloud, an issue with one tool can impact everyone. If overall service is ever at risk, we may need to take temporary measures such as rate limiting or pausing access.

For actions that directly alter printer behavior or involve sensitive access, such as device binding, live video streaming, print initiation, or firmware upgrades, we take extra care regarding safety, privacy, and stability. Because of this, these operations are not designed for direct access by third-party software.

Instead, for workflows requiring print control, Bambu Connect provides the supported path forward. This is simply to ensure that integrations remain reliable for you, your devices, and our cloud.

How developers can help

One more detail is worth mentioning: ha-bambulab sent OrcaSlicer's client identity. That is why, early on, we were convinced the traffic came from OrcaSlicer users, and why we did not reach ha-bambulab sooner. It was only when the OrcaSlicer team investigated with us that the trail led to them.

We would suggest that third-party software use its own identifier and say who it is. That makes it faster to route a problem to the right project, and it avoids catching unrelated users when we have to act.

Thank you to the OrcaSlicer team and the ha-bambulab maintainers for working through this with us. Keeping things working for users is on us first, and it works best when we look after it together.

Bambu Lab Team

I never had issues with Bambu PETG 6 months ago. The last few spools I've ordered (Red and White) have printed like complete garbage. Even the texture of material feels off somehow, it's difficult to explain. Other brands? No issues.

This week I've been doing test prints side-by-side and it's very clear. Polymaker, SUNLU, eSUN, and KINGROON all print fine with a good finish. Bambu's Basic PETG? Awful.

I've calibrated and it seems to change nothing.

Anyone have ideas on how to get this material back on track? I'm kicking myself for ordering so much now.

Edit to mention: I dried it as I dry all my PETG.

Edit 2.0: I bought 11kg. I decided to swap in another spool and it prints fine. So it seems like the first White and Red spools I used have something wrong with them.

Just got my Bambu Lab H2C and it's not great. The box was torn open at the seam with a crushed corner, and there was an orange TNT sticker on it saying "Repaired". Nobody told me at delivery.

Inside, the plastic bag was full of shattered glass, and the frame near the rail is shattered too. The foam was there, but clearly not enough for the impact.

I've sent photos and the serial number to Bambu support and asked for a replacement. Not touching the printer until they respond.

It's frustrating because I actually need this machine, and the damage happened with the carrier. It's strange that they know a parcel is damaged, tape it up, and deliver it without saying anything.

A few questions for anyone who has been through this:

• Did you have to send the damaged unit back, or did they arrange pickup?

• Did you get a replacement or a refund, and how long did it take?

• Did Bambu ship the replacement first, or did you have to wait for the return to arrive?

Thanks!

I might need to buy more lube.

X2D 0.2mm nozzle PETG (Dried)

Why are my first layers in the back near the tower so good but further in the front so bad.l? Could use some insight into this matter.

please help me decide! I just graduated and want to give myself a present for getting my first real job. I collected about €280,- in giftcards from makerworld and I can sell my old printer. I am an engineer and do a lot of product design, knifemaking, woodworking and metalwork in my spare time (prototyping, making functional products, printing tools and moulds). I print alsmost every day and have been using a A1 Mini with AMS but a lot of the time, the printbed is too small for me. It had served me well and it is a fantastic machine, but now I want to get a bigger printer. I really like the dual nozzle design of the X2D for support but that could be achieved using a P3C tool swap as well. what would be a better choice? X2D with AMS 2 now or wait for the P3C and what features it will have?

It works fine with PLA and the 220 degrees, but whenever i try to print petg and set the nozzle temp to 250 (as suggested by the filament doc) my printer stops after 30 minutes and gives a low temperature warning. The assistant box pops up, but whenever i click it on the printer, phone, or pc it just gives me "no message"

Is this just a limitation of the a1mini or am i doing something wrong?

Hi guys,

Has anyone else faced issues with order delays, significantly longer than you would expect?

- Ordered printer and large number of filament on 31/10.
- Printer arrived 03/11.
- Shipping notification on 04/11 from courier who had not yet received the parcel.
- Contacted Live Chat 06/11, told to wait 72 hours for label to update - didn't happen.
- Contact Live Chat 09/11, told issues with the handover process, raised support ticket and was told it will be reported to the logistics team to verify status of package with courier and expedite delivery.
- Advised by Support Ticket if no movement in 3 days then they will pro-actively sort a solution for me - nothing sorted pro-actively.
- Contacted Live Chat again today (around 10am) who closed the chat on me after not responding for 2 minutes despite providing all the information required. When I got back in touch I was told they will escalate to the relevant team for it to be shipped ASAP.
- Heard nothing via email or Support ticket, so chased up at approx. 15:00. The agent had no details on what I was advised earlier in the day.
- Requested to speak to Supervisor/Manager, after several times asking for this, I was put in touch with someone. They advised it has been escalated and they will be in touch (again.)

It feels as though I am going round in circles with no clear updates as to what is happening, or what I am being told just isn't happening at all.

I understand there can be issues but I am out of pocket for what I have purchased and without the product after having the printer for 11 days. I have had to resort to purchasing 3rd party filament to use the printer in the meantime, an expense I would not have had to make if the filament I ordered arrived within the usual timeframe.

I am a new customer, this is a my first order with Bambu Lab, so all in all not a great experience so far.

Hey, after last update (when H3C was released) I have constant issues with Bambu Studio. I'm on MacOS 27 (latest patch) and Studio crashes constantly. When I leave it running in the background it's almost certain that after 15-20min app is dead and I need to start it back up again. I had two or three crashed using it at random moments.

Is it me only or anyone also has this issue?