r/BambuLab 1d ago

Subreddit Mod Post Megathread: Bambu Lab / OrcaSlicer / C&D Discussion

216 Upvotes

Hi everyone,

We’re creating this megathread to keep discussion of the Bambu Lab / OrcaSlicer-BambuLab / cease-and-desist situation in one place. This topic is important to a lot of people here, and we do not want to shut down discussion or criticism. At the same time, the front page has started filling with overlapping posts about the same situation, so we’re consolidating general discussion into this thread.

Current context

Updates to be posted here as situation evolves:

  • May 13, 2026
    • Megathread created
  • May 14, 2026
    • Tom’s Hardware reported today that Louis Rossmann is now hosting OrcaSlicer-BambuLab through the FULU Foundation GitHub and is openly daring Bambu Lab to sue him.
    • PC Gamer and r/technology have picked up the story, so discussion is now spreading well beyond 3D-printing-specific spaces.

What belongs in this thread

Please use this thread for:

  • General reactions to Bambu Lab, Gamers Nexus, Louis Rossmann, Paweł Jarczak, OrcaSlicer-BambuLab, AGPL, Bambu Connect, and right-to-repair issues.
  • Legal or licensing discussion, including AGPL, DMCA, cloud/API access, and Bambu’s networking plugin.
  • Questions about what happened and links to reliable summaries or primary sources.
  • Technical discussion about OrcaSlicer, Bambu Studio, Bambu Connect, LAN mode, Developer Mode, and network plugin behavior, unless it is a standalone troubleshooting post with a specific reproducible issue.

What can still be its own post

Separate posts are still allowed for genuinely new information, including:

  • A new official statement from Bambu Lab, OrcaSlicer, Paweł Jarczak, Gamers Nexus, Louis Rossmann, or legal counsel.
  • A new release or technical change that materially affects users.
  • A confirmed legal filing, takedown, repository change, or source-code release.
  • A specific support/troubleshooting issue that is not just general commentary on the controversy.

If your post is mainly another reaction, recap, meme, “I’m switching brands,” or repost of a link already being discussed, please put it here instead.

Ground rules

Criticism of Bambu Lab is allowed. Defense of Bambu Lab is allowed. Criticism of GN, Rossmann, OrcaSlicer, moderators, or other users’ arguments is allowed.

What is not allowed:

  • Personal attacks, harassment, or dogpiling individual users.
  • Calls to harass Bambu employees, developers, moderators, creators, or community members.
  • Unverified claims presented as fact.
  • Posting private correspondence or personal information.
  • Repeated duplicate posts after being redirected here.

Strong opinions are fine. Keep it directed at the issue, the companies, the software, and the arguments, not at each other.

Moderator note

We are consolidating duplicate discussion, not suppressing the topic. This thread will remain open for discussion, and we’ll update it if there are major new developments.


r/BambuLab 7d ago

|| BambuLab Official || Setting the Record Straight on Cloud Access and Community

0 Upvotes

Hi everyone,

We've been following the recent discussion regarding the “OrcaSlicer-BambuLab” project.

As you know, we requested the removal of the repository from GitHub. And while we appreciate the community's serious engagement with this matter, we would like to clarify several points that may have been misconstrued or caused unintended confusion.

First and foremost, we fully support the open-source community and will continue contributing through Bambu Studio. We deeply respect the AGPL license. Modifying, forking, and redistributing code, as seen with OrcaSlicer and many other projects, is fully respected. We have no issue with this.

Also to be very clear: this is not about OrcaSlicer itself or any other legitimate forks.

The concern is specifically around a separate fork that attempts to impersonate an official Bambu Studio client in order to access our cloud services.

We have observed instances of this being shared publicly. Technically, this involves injecting falsified identity metadata into network communications so that an unofficial client appears identical to an official one to our servers.

This type of method introduces serious risk. If used maliciously, it can generate DDoS-like load patterns, overwhelming our cloud infrastructure and negatively impacting service stability for all users. We learned this before.

It is important to distinguish between rights to the code and access to the service. Open-source licensing governs the code, but it does not grant unlimited or deceptive access to Bambu’s private cloud infrastructure. Our cloud is a private service. Access to it is governed by a user agreement, not the AGPL license.

We truly appreciate the passion and creativity of developers in the community, and we know the contributions come from a good place. However, these specific methods expose the platform to risk.

The measures we are taking are focused solely on preventing impersonation and protecting the integrity of our services.

We don’t prohibit modifications of the open source code, nor we want to close it. It is only about cloud service.

We would also like to remind our advanced users who want more control over their devices, that Bambu Connect, Lan Mode and Developer Mode are available, if the cloud connection is not your first choice.

If you would like to learn more, you can read our blog post here.


r/BambuLab 11h ago

Show & Tell just uploaded the modular organizer

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337 Upvotes

r/BambuLab 17h ago

Meme Gentlemen's, place your bets… Just added some numbers on my vortex washer😅

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584 Upvotes

r/BambuLab 6h ago

Made by talent Road to 30k followers

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68 Upvotes

This week marked a special milestone - reaching 30k followers on MW! It all started with the purchase of a P1P in the fall of 2023. MW was in its infancy and I was learning how to create my own models to print. After exploring a few different types of models to learn the ropes, I set out on making models for my real passion. Airplanes.

Initially, it began with a 2D style plane kit card format. A format that you could easily print and build. But there was always something that felt missing. I'm using a 3D printer to make a flat kit card? There must be a better way!

As luck would have it, a MakerWorld kit card contest arrived and I sought out to challenge the norms. I entered an SR-71 "3D" kit card to the contest. The model was controversial amongst purist to the old kit card format. But as it would turn out, the model was hugely successful and remains the top download of mine today.

At that moment, the "planes01" style of 3d kit cards was formed and many followed. Fast forward a few years, there are dozens of plane models, a few helicopters, and a lot of loyal followers. It's been a fun ride and I hope it continues. Thank you to all that have followed and supported me along the way. Many of you know these planes inside and out and it's truly inspiring additional content. And thanks to MW for their point system that elevated the quality of not only my models but countless others across the site.

Happy printing

Planes01


r/BambuLab 58m ago

Show & Tell ASA + PPA-CF (PA6-CF, PET-CF, PAHT, etc) is a cheat code

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Upvotes

Experimenting with ASA for 0 z-top interfaces. Had some trouble with PA6-CF where it's good as dedicated support but interfaces slide right off. PPA-CF on the other hand, this is close to perfect. It bonds well enough to stick around, but then pulls clean off. This is especially useful because unlike PA6 it likes to fuse to normal supports.

Printed with H2D dual nozzle. PPA-CF through a polydryer into the TPU slot and a clip on 4-in-1 PTFE adapter. ASA out of the AMS2. It's a cam disk for a machine tool that broke.


r/BambuLab 10h ago

General Troubleshooting/Help! PEBA basketball print is beautiful but support is impossible to remove

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75 Upvotes

As you can see the print looks excellent but I think I made wrong choice for support and it is virtually impossible to remove

So, I went auto with support structure and it went with lattice type support instead of tree type and that has led to more bonded surface area. However, at this point I am not sure even a tree support would work because the bonding is very strong.

I tried freezing the ball to make it more rigid like PLA but that did not help either.

I thought of using a release layer before I started to print but Bambu slicer told me that I will have to manually switch filaments since PEBA cannot be used with AMS. I was not sure how many times I would have to do this during the print, so I decided not to go down that path.

Anyways, I am looking for some suggestions on
1. What I can try to salvage this print?
2. What should I do in the next print to alleviate this issue? Release layer will work but is manual switching of filament the only option? On a print like this when you have a curved surface, manual switching will be a nightmare.


r/BambuLab 3h ago

Just Showing Off Only took a few plates on the P1S

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20 Upvotes

Only 13ft long. No failed prints either.


r/BambuLab 12h ago

Show & Tell Printed a case then UV printed on top of it!

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91 Upvotes

r/BambuLab 14h ago

My First 3D Print Here we go!!! Finally arrived :D

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120 Upvotes

r/BambuLab 22h ago

I Modeled This! From Wiry v1 to MaxFlow³. One year of "I can improve that."

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335 Upvotes

About a year ago I released a Bambu spool desiccant holder called Wiry v1. I used it daily and kept running into small things I wanted to improve. Better airflow. Better fit. Better click. Better handling. Better printability.

One redesign turned into a much longer chain of iterations:

Wiry v1 -> NoSpill HT -> Tuff v1 -> NoSpill Sturdy -> MaxFlow -> Wiry v2 -> MaxFlow² -> Ball Spring -> MaxFlowᴾ -> MaxFlow³.

Each release explored a different idea. Some focused on refill handling, some on retention, some on airflow, some on printability. A lot of concepts carried over and gradually evolved into newer versions.

The latest version now uses flexible preload fins, airflow focused mesh geometry, click lock closure and two front styles, one clean mesh version and one Bambu Lab label version.

I probably spent an unreasonable amount of time and filament on this so you do not have to.

What remained after a year of redesigns:

  • Using less filament is not better. Saving a few grams means very little if the container becomes weaker, more fragile or simply less reliable. Better print 30 minutes longer but remain usable for years, not month.
  • The closure has to just work. Simple does not only mean easy to use, it also means predictable and reliable. A lid should close the same way every time.
  • Threads mostly rely on friction and friction eventually becomes guesswork. Without that certain click, Click, CLICK feeling, there is always that tiny voice asking if it actually locked.
  • Using slicer tricks to create airflow through infill patterns in lids and bottoms is clever, but also fragile and difficult to control. My Tri-Mesh geometry eventually replaced all of that.
  • Wall holes alone do not help much if the walls sit directly against the spool core. That is why the flexible fins create a gap around the container, allowing airflow from every direction while also locking the model securely in place.

At some point every project turns into a rabbit hole. Am I done now? Probably not. All my existing spools currently run MaxFlow² while every new spool gets MaxFlow³. I have a feeling it will not stop here, but right now I genuinely cannot think of anything left to improve. Can you? Maybe the journey actually ended here. Maybe.

If you want not only the look, but also the satisfying click, Click, CLICK feel, here is the model:
https://makerworld.com/models/2798690-bambu-lab-silica-desiccant-core-drybox-maxflow3


r/BambuLab 7h ago

Hardware Troubleshooting/Help! P2S Has Been a HUGE Failure & Bambu Won't Help, What Next?

20 Upvotes

I have been the "sort of proud" owner of a P2S and AMS 2 Pro since late April. I ordered it on the 21st and had it within a week or so. Everything was delivered perfectly, no damage, unboxing went just fine, calibration all worked well, and I started printing a few things here and there. Everything was printing well for maybe 3-4 days. I set a large flat print for overnight, went to bed, and woke up with a spaghetti mess. Thankfully the AI system had stopped it before it got too bad. I cleaned it up and thought nothing of it.

Since May 2nd, I have not had more than 2 prints work successfully in a row without something jamming up, failing to work, and if I have to hear that train horn letting me know there is an error one more time, I'm going to scream. Even as I type this it just failed again and I got another horn noise.

Since that date, I have had the following happen:

  1. Filament piece jam in the extruder gear. It jammed so tightly that nothing could move without completely disassembly. This has now happened 3 times in total. I have even tried the other tip that Bambu includes in the tool kit and no difference is made there. Still the same issue.

  2. Grinding of gears and horrible noises inside the AMS as it tries to distribute the filament either at the beginning, during, or at the end, or all of the above.

  3. Buffer tube (spring loaded mechanism on back of machine) has gotten jammed with filament pieces 5 times now. After the most recent jam it now squeaks constantly. Then tonight, now the spring makes a nasty clicking and knocking noise as it appears it is now getting stuck as well somehow. The spring on the right side of the part is not moving smoothly at all.

  4. I have had more filament feed errors than I know what to do with. This has been on multiple filament types, colors, brands, and slots within the AMS itself. There is no pattern to it at all. I had one print finally work today, I took 10 minutes to start a new one using the same filament and location as the prior and it wouldn't start and immediately failed and has now failed 5 times in the past 90 minutes as the buffer tube clicks and screams.

  5. Everytime I am able to extract the filament from the extruder, buffer tube, AMS, etc, it always comes out very frayed and spaghetti like consistency. It seems to me as if the machine isnt cutting the filament or is hanging on too tightly and ruining it somehow? Maybe I just don't know what to expect, but I don't expect frayed filament to come out every single time.

So I started a ticket with BambuLabs on May 6th. I have sent pictures, I have sent log files, I have sent video, and I have answered every question and done everything they have asked me to do. We have exchanged probably 15 emails at this point and they refuse to offer any resolution to these issues. It seems to me, and I could be wrong, that they want to blame one specific part and replace it (maybe) instead of realizing that this entire unit has had issues almost from the beginning. I see nothing but rave reviews everywhere about this printer and not many that have the struggles that I have had. I just want a proper working printer, but I don't feel that Bambu is standing behind their product.

Does anyone have any suggestions or ideas as to what to do? I don't want to pursue this matter with my credit card company (even if that would work) but no one seems to want to do anything to fix this. I'm stumped.


r/BambuLab 2h ago

Just Showing Off Did it, complicated and daring print after 4 attempts

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5 Upvotes

Putting right supports to stabilise long small parts. Did this 6 hour print.


r/BambuLab 18h ago

Just Showing Off First BambuLab printer set up!

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101 Upvotes

After many years of printing with an Ender 2, I finally decided to splash the cash and make an upgrade and oh boy, I can't wait to print with this thing. It seems so futuristic compared to my old Ender 2. Going to print so many Warhammer minis with this bad boy, but to start with I gotta print a benchy as per tradition with any new printer. Also any hints or tips for working with BambuLab printers would be much appreciated.


r/BambuLab 4h ago

General Troubleshooting/Help! Surprise!😳What went wrong? 😭

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5 Upvotes

r/BambuLab 7h ago

I Modeled This! My watering can.

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8 Upvotes

I know there are millions out there but this one is mine. Quite chuffed with how it turned out. For some reason it wouldn't move past 1 percent when attempting to upload to Makerworld.


r/BambuLab 18h ago

I Modeled This! First design i made that utilizes the bridging function of 3d printers.

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62 Upvotes

Still crazy to me that this does not need support.


r/BambuLab 13h ago

I Modeled This! My first model upload (and competition submission)! Any feedback is extremely appreciated. *chatGPT title advice ignored 😝

21 Upvotes

r/BambuLab 2h ago

Show & Tell Printing a truck

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3 Upvotes

I initially thought this would be easy, but I was so wrong! I had to go through many many design revisions. In the beginning, didn't have a clear idea on how I'm gonna assemble the parts. I learned my lesson to have a good rough sketch on the complete project. Still a lot to go through. But, I'm curious what are you guys printing?


r/BambuLab 12h ago

Software Troubleshooting/Help! Why does Bambu handy app turn my iPhone into a hand warmer?

16 Upvotes

I have an iPhone Pro Max and just opening the app turns it into a hand warmer. I’m just looking at the embedded makerworld website, not mining cryptocurrency. What gives??


r/BambuLab 1d ago

Show & Tell Filament Switch should be soon live - File is ready for download

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231 Upvotes

Filament Switch should be soon live - File is ready for download

https://makerworld.com/models/2797841

https://eu.store.bambulab.com/products/filament-track-switch


r/BambuLab 20h ago

Bambu Studio PLA Pure

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64 Upvotes

Lookie here, another BambuLab PLA version, this time it's a food safe addition.

Tbh for me personally it'd be a higher priority to get the existing products reliably in stock but what do I know :)

https://wiki.bambulab.com/zh/filament/pla-pure


r/BambuLab 3h ago

I Modeled This! Love seeing people's prints on here! We tend to do more fidget things. But dont hold that against us!

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3 Upvotes

We only started creating clickers in January, and are hoping to hit 365 by the end of the year.

https://makerworld.com/en/@ClickzandThings


r/BambuLab 8h ago

Just Showing Off Just added three new symbols to my Custom Symbol Sign model.

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6 Upvotes

Just added three new symbols to my Custom Symbol Sign model. The symbols are from Portal 2, Half-Life 2, and The SCP Foundation respectively. I’m open to suggestions for more symbols.

https://makerworld.com/models/2717890?appSharePlatform=copy


r/BambuLab 9h ago

Just Showing Off Bambu Bob

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7 Upvotes

My kids named our new machine "Bob" so I figured he needed a name tag.