Updated 2 November 2026. I am not a lawyer, and this is not legal advice. It is a plain-English explanation of what has been reported, with my own commentary clearly marked as opinion.
If you upload 3D models anywhere, the biggest copyright story of the year is worth five minutes of your time. A Chinese toy giant took Bambu Lab to court over models its users had shared on MakerWorld, Bambu Lab removed the files and apologised, the two settled before trial, and almost everyone concluded that nothing had really been decided. That conclusion is correct, and it is also the problem. The legal question at the centre of the case, whether a model-sharing platform is responsible for what its users upload, was never answered, so every uploader is now living with the consequences of a fight that ended without a ruling. This post explains what happened, what did not happen, and what it means for you.
First, which lawsuit?
There is no single “MakerWorld lawsuit”. Bambu Lab is involved in several legal disputes at the moment, and they are easy to confuse, so here is the map.
| Dispute | What it is about | Where it stands |
|---|---|---|
| Pop Mart v Bambu Lab | Copyright. User-uploaded Labubu and other Pop Mart character models on MakerWorld. Filed in the Pudong court in Shanghai | Settled on 16 March 2026, before an 2 April trial. Terms not disclosed |
| The “Luo Xiaohei” studio v Bambu Lab | Copyright. Models based on The Legend of Luo Xiaohei. Hearings were reported for 25 December 2025 and 20 March 2026 | I found no public outcome. The IP no longer appears on MakerWorld, according to one report |
| Shanghai Xinchuanghua v Bambu Lab | Copyright. An IP licensing agency whose portfolio includes Ultraman, Detective Conan, Hatsune Miku and Evangelion. Reported in June, with a hearing set for 20 July 2026 | I found no public outcome. A search for Ultraman reportedly no longer returns models |
| MakerWorld v Creality Cloud, Nexprint and MakerOnline | MakerWorld as the complainant, over reposted “exclusive” models and licence breaches | A lawsuit against Creality Cloud and Nexprint and a letter to MakerOnline were reported in October 2025 |
| Stratasys v Bambu Lab | Patents on printer technology, not models. A Texas jury awarded $27.6 million in September | Post-trial motions and an appeal. Nothing to do with uploads |
When people say “the MakerWorld lawsuit”, they almost always mean the first row. The rest of this post concentrates on it, because it is the case that actually changed behaviour.
What happened in the Pop Mart case
| Date (2026) | Event |
|---|---|
| Late February | Pop Mart files a copyright claim at the People’s Court of Pudong New Area in Shanghai, naming Bambu Lab and affiliated companies. The complaint concerns user-uploaded files for Labubu and other characters |
| Around the Chinese New Year | MakerWorld removes the disputed models, according to Chinese business outlet Yicai. Searches for Labubu return nothing |
| Early March | The case becomes public through reporting. Users complain that unrelated models have been swept up in a mass delisting |
| 5 March | Bambu Lab says some models were delisted by an “operational error”, apologises and restores most of them |
| 16 March | Bambu Lab announces on Weibo that it has settled with Pop Mart through “friendly consultations”, with all related content removed |
| 2 April | The date the trial would have started |
Pop Mart’s argument, as reported, was that hosting and distributing the files infringed its rights of reproduction, distribution and communication over information networks. The character at the centre of it, Labubu, accounted for more than 30% of Pop Mart’s total sales in 2025. Bambu Lab did not create or upload any of the files, and the case was against it as the platform operator. That is the key point: the defendant was the platform, not the people who uploaded.
The legal question nobody answered
The case turned on what lawyers call safe harbour. In broad terms, a platform that hosts user content is protected from liability for infringing uploads as long as it acts promptly when it is told about them. The sticking point, as legal commentators described it, is a “knew or should have known” test: if a famous character such as Labubu is visibly being shared in huge numbers, can a platform claim ignorance until a formal complaint arrives? Several observers pointed out that the files were removed after the lawsuit was filed rather than proactively, which could have weakened a safe-harbour defence had the case gone to judgment. Others noted that Bambu Lab both makes the printers and runs the platform, which Chinese legal commentators suggested put it in a stronger position to know what its users were doing.
Then it settled. As a result, there is no judgment, no precedent and no court statement about where a 3D model platform’s responsibility starts and stops. 3D Printing Industry put it bluntly: the question “now remains legally unresolved”. The settlement ended one dispute but left the rule untouched. It also did not stop the pressure. One analyst described the case as the largest copyright enforcement action by a well-known rights holder against a 3D printing platform to date, and another noted it was the first time a 3D printing platform had been dragged into court as a defendant.
What changed on MakerWorld
- Labubu content is gone. Bambu Lab confirmed all related content was removed, with an apology to both Pop Mart and its own users for the disruption.
- The sweep was clumsy. Users on Reddit and Bambu’s forum reported unrelated models being delisted: printer mods, cable clips, paint-brush holders, lock-related tools and a joystick design. Bambu said it was an operational error and restored most. The lesson for uploaders is that a platform under legal pressure may over-remove first and sort it out later.
- Other franchises were reported to linger. One report said designs based on other major IP, including Pokémon and Hello Kitty, remained accessible after the lawsuit. That is a snapshot from the spring, not a statement about today.
- Pressure on the whole sector. Analysts expect rights holders to be more assertive and platforms to lean towards proactive moderation rather than waiting for complaints. Western platforms such as Printables, Thingiverse, Thangs and MyMiniFactory were reported to still carry Labubu files, with no takedown requests reported against them, which suggests the enforcement push is concentrated in China for now.
MakerWorld has also been on the other side
It is worth remembering that MakerWorld is not only a defendant. In October 2025 it published a statement saying that sharing on MakerWorld does not give away your rights, that public availability is not permission, and that copyright remains with the creator. It said its legal and operations teams had helped around 2,000 creators resolve over 4,000 cases of unauthorised reuploads and misuse. It then began legal action against competing platforms, and in early 2026 launched a Creator Copyright Protection Program for designers in its Exclusive Model Program, working with outside IP agencies including CopyrightShark and FirstBrave. In the beta, over 100 creators reported cases and more than 200 links were removed. The program is restricted to exclusive models, and designers must confirm the work is entirely original and uses no third-party IP, with identity and ownership proof required for formal claims.
That creates a slightly awkward position, and the press noticed. MakerWorld wants strong protection for its creators’ original work while carrying a vast library of fan-made characters that other people own. The two aims pull in different directions, and the Pop Mart case is where they collided.
What it means if you upload models
The lawsuit targeted the platform, not uploaders, and rights holders have generally preferred to go after platforms rather than individuals. But platforms are your landlord, and a landlord under legal pressure changes the house rules. Here is how I would think about the risk, from lowest to highest. This is general background, not advice about your specific model.
| What you are uploading | Risk level | Why |
|---|---|---|
| Your own original design, from your own CAD | Low | You own it. The main risk is a mistaken claim, so keep your proof |
| A remix of a model under a licence that allows remixes | Low to medium | Follow the licence terms, give credit, and check it allows your use, especially if non-commercial or no-derivatives |
| A part that fits a branded product, with no logos | Medium | Shape and fit are not usually the issue, but trademarks, trade dress and patents can be. Avoid brand names and logos in titles and tags |
| Anything carrying a brand logo or trademark | High | Logos are protected. Forum users reported car-brand logos being removed from MakerWorld after reports |
| Fan art of characters, toys and films | High | The characters are copyright and often trademark. “Free” and “non-commercial” are not a defence. This is the Labubu category |
| A scan or copy of a commercial figurine or toy | High | A direct copy of a protected work |
| An AI-generated model of a famous character | High | The output may still reproduce a protected character, and the platform will treat it as such |
Two clarifications. First, “fan art” is a grey area in culture and a red flag in law. Copyright arises automatically when someone creates an original work, and the creator does not need to register it or put a notice on it. Many makers assume non-commercial fan art is harmless, and rights holders have repeatedly shown otherwise, with takedowns reaching Star Wars models on Thingiverse, Honda-related models on Printables and derivatives of the 3DBenchy. Second, I am writing from the UK, where there is no broad US-style “fair use”. Our exceptions, called fair dealing, are narrower and cover specific purposes such as criticism, review and parody, so “I only made it for fun” does not help.
What MakerWorld’s own rules say
- Terms of use. MakerWorld says that if user content is reasonably determined to violate, or potentially violate, a third party’s IP rights, it will remove the content provisionally or permanently. Note the word “potentially”.
- IP policy and counter-notification. MakerWorld publishes an IP policy with a report process and a counter-notification process aligned with the US Digital Millennium Copyright Act. The version I could read relates to crowdfunding campaigns and sets short windows for a counter-notification (seven days to start one, with a claimant response period of 14 days). Check the general policy page for the rules that apply to ordinary uploads, because I could not confirm they are identical.
- Exclusive and membership programmes. Creators in those programmes agree to originality and IP requirements, can be asked to prove originality and identity, and risk losing upload rights if a model infringes. The membership terms also appear to include an indemnity clause covering claims over models you upload, which is worth reading carefully if you earn money from the platform.
Complaints from creators
These are user statements on the Bambu forum, not verified findings, but they show a pattern worth knowing about.
- One creator described a model being removed and deleted with no way to dispute it, then removed again after he reuploaded a changed version, before winning on appeal and receiving an apology.
- Others described models flagged as copies when they were original, and said innocent designs were caught in takedown sweeps.
- One user said MakerWorld told him it had no grounds to penalise an account because the infringing product was not hosted on MakerWorld.
- Another argued that MakerWorld does not actively prune infringing models and mostly acts after complaints. I cannot verify that, and a platform under legal pressure may now behave differently.
Taken together, those experiences suggest uploaders can lose in two directions: a rights holder may flag something that is not infringing, or an infringing copy of your own work may stay up elsewhere. Both are reasons to keep your own records.
A practical checklist
- Keep proof of originality. Save your CAD source files, work-in-progress screenshots and dated exports. If a claim comes, evidence of how you built the model is your best defence.
- Back up everything you upload, including the description and print settings. A mistaken takedown can remove the model and its page.
- Choose a licence deliberately, and check the licence of any model you remix. Public availability is not permission, as MakerWorld itself says.
- Keep brands out of titles and tags unless you own them, and avoid logos on anything you upload.
- Think twice about characters. If you did not create it and do not have a licence, assume it is protected.
- Know the dispute route before you need it, including the counter-notification windows, and respond promptly.
- Read the programme terms if you are in an exclusive or paid creator scheme, particularly the indemnity wording.
- Do not assume other platforms are safer. Western sites still operate under safe-harbour rules, but they do remove content when notified, and rules vary by country.
And if you only download and print?
Nothing in the Pop Mart case targeted people who printed files at home. The claim was about the hosting and distribution of the files, and rights holders have not gone after individual hobbyists. But “nobody has sued individual printers” is not the same as “it is fine”. Printing a character for yourself is a different level of risk from selling it, and selling prints of someone else’s character is where the real trouble lies. If you sell prints, make sure the underlying model is either yours or properly licensed for commercial use, a point I raised in the KOGI LAB post, where recolouring or exporting a model does not override its original licence. The free STL sites guide covers the licence differences between platforms.
What happens next
- The other Chinese cases. I could not find public outcomes for the Luo Xiaohei and Xinchuanghua suits. A ruling in either could answer the question the settlement dodged, so they are worth watching.
- Proactive moderation. Expect more automated screening and more caution about famous characters, and with it more false positives.
- Western enforcement. Nothing reported so far, but the same logic applies to any large platform with a global audience.
- Bambu’s wider legal position. The Stratasys appeal is a separate track, covered in the Formlabs vs Bambu post, but it shows how many fronts the company is fighting on.
My take
I do not think the settlement was a failure of nerve, and I do not think it was a victory for rights holders either. It was a pragmatic exit from a case neither side wanted to risk losing, and the cost of that pragmatism falls on everyone else, because the rules are still unclear and the platform has every incentive to clean house first and ask questions later. For uploaders the sensible response is not panic but housekeeping: upload your own work, keep your receipts, and treat famous characters as someone else’s property. The community’s habit of treating every file as fair game was always more fragile than it felt, and 2026 is the year the people who own the characters noticed.
Sources and further reading
- 3D Printing Industry: Bambu Lab and Pop Mart lawsuit settled out of court
- 3D Printing Industry: new IP case against Bambu Lab heads to Shanghai court
- Tom’s Hardware: Labubu sues 3D printer maker Bambu Lab
- Yicai Global: Bambu Lab resolves Pop Mart copyright case
- AM Insight Asia: how far does platform liability reach?
- Asia IP Law: platform liability in the age of downloadable manufacturing
- Manufactur3D: Bambu Lab and Pop Mart settlement ends 3D printing IP battle
- Sixth Tone: Pop Mart sues Chinese 3D printer company over Labubu copies
- 3DPrint (3Druck): Bambu Lab in court over copyrighted models on MakerWorld
- MakerWorld: Protecting Creators’ Rights on MakerWorld
- Tom’s Hardware: MakerWorld launches Copyright Protection Program
- MakerWorld Terms of Use and MakerWorld Intellectual Property Policy
- Bambu Lab forum: we need the ability to dispute copyright violation claims
