Bambu Lab Authorization Control System: Difference between revisions
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On January 16, 2025, the 3D-printer manufacturer '''[[Bambu Lab]]''' announced that future firmwares for its 3D printers would introduce an authorization | On January 16, 2025, the 3D-printer manufacturer '''[[Bambu Lab]]''' announced that future firmwares for its 3D printers would introduce an authorization and authentication mechanism for printer connection and control, [[Deceptive language frequently used against consumers|in the name of security]].<ref name="firmware-update-introducing-new-authorization-control-system-2">{{Cite web |last=Bambu Kidd |date=2025-01-16 |title=Firmware Update Introducing New Authorization Control System |url=https://blog.bambulab.com/firmware-update-introducing-new-authorization-control-system-2/ |url-status=live |archive-url=https://ghostarchive.org/archive/qwL63 |archive-date=2026-03-07 |website=[[Bambu Lab]] Blog}}</ref> The change restricted the use of third-party accessories and slicers such as Panda Touch and OrcaSlicer, and it gated print initiation, motion control, fan and hotend control, AMS configuration, calibrations, remote video, and firmware upgrade behind a Bambu-issued authentication path.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> Bambu Lab also publishes its own slicer, [https://github.com/bambulab/BambuStudio Bambu Studio], under the [[GNU Affero General Public License|AGPL-3.0]],<ref name="bambustudio-license">{{Cite web |title=BambuStudio LICENSE (AGPL-3.0 verbatim) |url=https://github.com/bambulab/BambuStudio/blob/master/LICENSE |website=GitHub |publisher=Bambu Lab |access-date=2026-05-10 |url-status=live}}</ref> while its [[Terms of Service|Terms of Use]] § 3.4 forbid users to modify, copy, reverse engineer, or create derivatives of "the Product."<ref name=":2">{{Cite web |date=2024-04-24 |title=Terms of Use |url=https://bambulab.com/en-us/policies/terms |url-status=live |archive-url=https://ghostarchive.org/archive/vPu9I |archive-date=2026-03-09 |access-date=2025-05-01 |website=[[Bambu Lab]]}}</ref> In April 2026, Bambu Lab sent a private cease-and-desist demand to a Polish community fork maintainer, Pawel Jarczak, who had restored direct printer control on top of that AGPL source; on May 7, 2026, Bambu Lab published a blog post recharacterizing the dispute as "impersonation" through "falsified identity metadata" rather than as a question about open-source rights.<ref name="bambu-blog-record-straight">{{Cite web |title=Setting the record straight on Cloud Access and Community |url=https://blog.bambulab.com/setting-the-record-straight-on-cloud-access-and-community/ |website=Bambu Lab Blog |publisher=Bambu Lab |date=2026-05-07 |access-date=2026-05-10 |url-status=live}}</ref><ref name="jarczak-readme">{{Cite web |last=Jarczak |first=Pawel |title=OrcaSlicer-bambulab — This is the end…. |url=https://github.com/jarczakpawel/OrcaSlicer-bambulab |url-status=live |archive-url=https://web.archive.org/web/20260430001537/https://github.com/jarczakpawel/OrcaSlicer-bambulab |archive-date=2026-04-30 |access-date=2026-05-04 |website=[[GitHub]]}}</ref> | ||
==Controversy regarding firmware updates== | ==Controversy regarding firmware updates== | ||
[[File:Bambu tos screenshot.png|alt=bambu terms stating print jobs may not function properly if update is not performed to new firmware which is highly limiting. |thumb|Bambu terms regarding printer functionality | [[File:Bambu tos screenshot.png|alt=bambu terms stating print jobs may not function properly if update is not performed to new firmware which is highly limiting. |thumb|Bambu terms regarding printer functionality and potential for disrupted print jobs if users do not update to a new firmware that radically restricts the autonomy of the owner of the printer]] | ||
===Potential for remote disabling of printers=== | ===Potential for remote disabling of printers=== | ||
A concern raised by the community revolves around the wording in Bambu Lab's [[Terms of Service]] (ToS) and firmware update announcements. Critics and users argue that the phrasing leaves open the possibility for the manufacturer to [[Remote disabling|remotely disable]] printers that are not updated to the latest firmware. Specifically, Bambu Lab's ToS warns that printers may block new print jobs if updates are not applied,<ref name=":2" /> which some users interpret as a potential pathway for forced obsolescence.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> While defenders of Bambu Lab point out that offline modes such as SD-card printing and [[wikipedia:Local_area_network|LAN]]-only setups would remain functional, others point out that the ToS do not explicitly limit this restriction to [[Cloud (service)|cloud]]-based printing. This ambiguity has led to speculation that Bambu Lab could enforce broader limitations, effectively rendering printers inoperable for users who choose not to update.<ref name="theverge-bambu-2025">{{Cite web |last=Hollister |first=Sean |date=2025-01-22 |title=Here's what Bambu will — and won't — promise after its controversial 3D printer update |url=https://www.theverge.com/2025/1/21/24349031/bambu-3d-printer-update-authentication-filament-subscription-lock-answers |url-status=live |access-date=2025-05-01 |website=The Verge |archive-url=http://web.archive.org/web/20251122143504/https://www.theverge.com/2025/1/21/24349031/bambu-3d-printer-update-authentication-filament-subscription-lock-answers |archive-date=2025-11-22}}</ref> | A concern raised by the community revolves around the wording in Bambu Lab's [[Terms of Service]] (ToS) and firmware update announcements. Critics and users argue{{CitationNeeded}} that the phrasing leaves open the possibility for the manufacturer to [[Remote disabling|remotely disable]] printers that are not updated to the latest firmware. Specifically, Bambu Lab's ToS warns that printers may block new print jobs if updates are not applied,<ref name=":2" /> which some users interpret as a potential pathway for forced obsolescence.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> While defenders of Bambu Lab point out that offline modes such as SD-card printing and [[wikipedia:Local_area_network|LAN]]-only setups would remain functional, others point out that the ToS do not explicitly limit this restriction to [[Cloud (service)|cloud]]-based printing. This ambiguity has led to speculation that Bambu Lab could enforce broader limitations, effectively rendering printers inoperable for users who choose not to update.<ref name="theverge-bambu-2025">{{Cite web |last=Hollister |first=Sean |date=2025-01-22 |title=Here's what Bambu will — and won't — promise after its controversial 3D printer update |url=https://www.theverge.com/2025/1/21/24349031/bambu-3d-printer-update-authentication-filament-subscription-lock-answers |url-status=live |access-date=2025-05-01 |website=The Verge |archive-url=http://web.archive.org/web/20251122143504/https://www.theverge.com/2025/1/21/24349031/bambu-3d-printer-update-authentication-filament-subscription-lock-answers |archive-date=2025-11-22}}</ref> | ||
====Editing of initial announcement==== | ====Editing of initial announcement==== | ||
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==Bambu Lab's justification and rebuttal== | ==Bambu Lab's justification and rebuttal== | ||
Bambu Lab has stated that the authorization system is in place in order to protect against "remote hacks," "printer exposure," and "abnormal traffic or attacks. | Bambu Lab has stated that the authorization system is in place in order to protect against "remote hacks," "printer exposure," and "abnormal traffic or attacks". The cited security incidents have specific context: | ||
*The "remote hacks" cited as an example in the article followed a reported security vulnerability in a 3D printer product; according to Bitdefender's reporting, the researcher infected machines to display a harmless message in order to publicize the unpatched flaw.<ref>{{Cite web |last=Cluley |first=Graham |date=2024-03-01 |title=Someone is hacking 3D printers to warn owners of a security flaw |url=https://www.bitdefender.com/en-au/blog/hotforsecurity/someone-is-hacking-3d-printers-to-warn-owners-of-a-security-flaw?ref=blog.bambulab.com |url-status=live |archive-url=https://web.archive.org/web/20260216002646/https://www.bitdefender.com/en-au/blog/hotforsecurity/someone-is-hacking-3d-printers-to-warn-owners-of-a-security-flaw?ref=blog.bambulab.com |archive-date=2026-02-16 |access-date=2025-05-01 |website=[[Bitdefender]]}}</ref> | *The "remote hacks" cited as an example in the article followed a reported security vulnerability in a 3D printer product; according to Bitdefender's reporting, the researcher infected machines to display a harmless message in order to publicize the unpatched flaw.<ref>{{Cite web |last=Cluley |first=Graham |date=2024-03-01 |title=Someone is hacking 3D printers to warn owners of a security flaw |url=https://www.bitdefender.com/en-au/blog/hotforsecurity/someone-is-hacking-3d-printers-to-warn-owners-of-a-security-flaw?ref=blog.bambulab.com |url-status=live |archive-url=https://web.archive.org/web/20260216002646/https://www.bitdefender.com/en-au/blog/hotforsecurity/someone-is-hacking-3d-printers-to-warn-owners-of-a-security-flaw?ref=blog.bambulab.com |archive-date=2026-02-16 |access-date=2025-05-01 |website=[[Bitdefender]]}}</ref> | ||
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This change has drawn criticism for many reasons: | This change has drawn criticism for many reasons: | ||
*'''Privacy concerns''': Requiring authentication for LAN mode raises concerns about data being unnecessarily exposed to Bambu Lab's servers, even for local-only operations, though previously, the printer was also connected and could be controlled by the cloud even when sending prints locally. | *'''Privacy concerns''': Requiring authentication for LAN mode raises concerns about data being unnecessarily exposed to Bambu Lab's servers, even for local-only operations, though previously, the printer was also connected and could be controlled by the cloud even when sending prints locally. | ||
**Confidentiality required by US Law: this is in conflict with users that have to comply with internal U.S. government classified information handling regulations. | **Confidentiality required by US Law: this is in conflict with users that have to comply with internal U.S. government classified information handling regulations.{{CitationNeeded}} | ||
*'''Loss of offline independence while also using cloud''': Before, users could have hybrid offline setups. The requirement for authentication removes this option unless users revert to older firmware versions; Bambu Lab initially indicated rollback would not be permitted, though The Verge later reported that users could still downgrade and use LAN access keys while signed into the cloud. | *'''Loss of offline independence while also using cloud''': Before, users could have hybrid offline setups. The requirement for authentication removes this option unless users revert to older firmware versions; Bambu Lab initially indicated rollback would not be permitted, though The Verge later reported that users could still downgrade and use LAN access keys while signed into the cloud. | ||
*'''Increased complexity''': The added authentication layer complicates workflows for users who built custom setups or relied on third-party integrations for LAN control while retaining cloud functionality.<ref name=":4">{{Cite web |last=@edlboston |date=2023-01 |title=Full Non-Cloud Based Network Option Needed |url=https://forum.bambulab.com/t/full-non-cloud-based-network-option-needed/3643 |url-status=live |archive-url=https://ghostarchive.org/archive/1ee4F |archive-date=2026-03-30 |access-date=2025-05-01 |website=[[Bambu Lab]] Community Forum |quote=Yes, I know about the LAN mode. But as has been stated by many people, things like the camera will not work, nor will the Handy app. There is no technical reason that these are bound to the cloud. This is the problem and why I titled this FULL Non-Cloud Network.}}</ref> | *'''Increased complexity''': The added authentication layer complicates workflows for users who built custom setups or relied on third-party integrations for LAN control while retaining cloud functionality.<ref name=":4">{{Cite web |last=@edlboston |date=2023-01 |title=Full Non-Cloud Based Network Option Needed |url=https://forum.bambulab.com/t/full-non-cloud-based-network-option-needed/3643 |url-status=live |archive-url=https://ghostarchive.org/archive/1ee4F |archive-date=2026-03-30 |access-date=2025-05-01 |website=[[Bambu Lab]] Community Forum |quote=Yes, I know about the LAN mode. But as has been stated by many people, things like the camera will not work, nor will the Handy app. There is no technical reason that these are bound to the cloud. This is the problem and why I titled this FULL Non-Cloud Network.}}</ref> | ||
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*While the user experience is different, the flow remains unchanged Orca Slicer slices model -> Orca Slicer Calls API of Bambu Proprietary Software -> Bambu Proprietary Software controls the printer. | *While the user experience is different, the flow remains unchanged Orca Slicer slices model -> Orca Slicer Calls API of Bambu Proprietary Software -> Bambu Proprietary Software controls the printer. | ||
Additionally, Bambu Connect software (downloaded and installed in January 2025, before the backlash response) supports adding LAN-Only printers without requiring Bambu Account authentication, the same behavior as the Network Plugin used in Orca Slicer. | Additionally, Bambu Connect software (downloaded and installed in January 2025, before the backlash response) supports adding LAN-Only printers without requiring Bambu Account authentication, the same behavior as the Network Plugin used in Orca Slicer.{{CitationNeeded}} | ||
===X1E firmware 01.01.02.00 LAN-mode connection failure=== | ===X1E firmware 01.01.02.00 LAN-mode connection failure=== | ||
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==Implementation timeline and requirements== | ==Implementation timeline and requirements== | ||
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The authorization system will be rolled out in phases, starting with the X1 series printers. A beta firmware (version 01.08.03.00) was released on January 17, 2025, with the full release scheduled for late January 2025.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> The P | The authorization system will be rolled out in phases, starting with the X1 series printers. A beta firmware (version 01.08.03.00) was released on January 17, 2025, with the full release scheduled for late January 2025.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> The P and A series printers will get similar updates at an unspecified future date. | ||
To use printers with the new authorization system, users must update multiple pieces of software:<ref name="firmware-update-introducing-new-authorization-control-system-2" /> | To use printers with the new authorization system, users must update multiple pieces of software:<ref name="firmware-update-introducing-new-authorization-control-system-2" /> | ||
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*Automate printer behaviors based on sensor data or events | *Automate printer behaviors based on sensor data or events | ||
*Access camera feeds through third-party applications<ref name="bambulab-forum-135400/9">{{Cite web |last=@hho |date=2025-01-16 |title=This new auth system will make me sell my printers |url=https://forum.bambulab.com/t/this-new-auth-system-will-make-me-sell-my-printers/135400/9 |url-status=live |archive-url=https://ghostarchive.org/archive/ro1KZ |archive-date=2026-03-30 |access-date=2025-05-01 |website=Bambu Lab Community Forum}}</ref> | *Access camera feeds through third-party applications<ref name="bambulab-forum-135400/9">{{Cite web |last=@hho |date=2025-01-16 |title=This new auth system will make me sell my printers |url=https://forum.bambulab.com/t/this-new-auth-system-will-make-me-sell-my-printers/135400/9 |url-status=live |archive-url=https://ghostarchive.org/archive/ro1KZ |archive-date=2026-03-30 |access-date=2025-05-01 |website=Bambu Lab Community Forum}}</ref> | ||
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commented out this section until someone can check and resolve the contradiction in the first paragraph | |||
===Permanent nature of the update=== | ===Permanent nature of the update=== | ||
Once a printer is updated to the new firmware, users can still revert to previous versions.<ref name="theverge-bambu-2025" /> The option still exists to disable the cloud service. | Once a printer is updated to the new firmware, users can still revert to previous versions.<ref name="theverge-bambu-2025" /> The option still exists to disable the cloud service. | ||
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For users that would want to use a third-party slicer while using their cloud service, Bambu would require those users to download and install Bambu Connect in order to send gcode wirelessly over LAN or over the cloud. While Bambu claims that they were in contact with SoftFever, the developer of OrcaSlicer, as of January 2025, SoftFever did not have any keys for Bambu Connect and the new firmware was only available as opt-in beta at the time.<ref name=":1">{{Cite web |last=@fever_soft |date=2025-01-18 |title=This is definitely a bummer. I was negotiating for an authorization key to allow OrcaSlicer to communicate with their device like BambuStudio does, but today I was told they won't support this. Only their slicer can send prints directly; others must use their Bambu Connect application |url=https://x.com/fever_soft/status/1880630570809795034?t=qJyh4SGFZFllcYrqexGW-Q |url-status=live |access-date=2025-05-01 |website=[[X]] |archive-url=http://web.archive.org/web/20251004104021/https://x.com/fever_soft/status/1880630570809795034?t=qJyh4SGFZFllcYrqexGW-Q |archive-date=2025-10-04}}</ref> | For users that would want to use a third-party slicer while using their cloud service, Bambu would require those users to download and install Bambu Connect in order to send gcode wirelessly over LAN or over the cloud. While Bambu claims that they were in contact with SoftFever, the developer of OrcaSlicer, as of January 2025, SoftFever did not have any keys for Bambu Connect and the new firmware was only available as opt-in beta at the time.<ref name=":1">{{Cite web |last=@fever_soft |date=2025-01-18 |title=This is definitely a bummer. I was negotiating for an authorization key to allow OrcaSlicer to communicate with their device like BambuStudio does, but today I was told they won't support this. Only their slicer can send prints directly; others must use their Bambu Connect application |url=https://x.com/fever_soft/status/1880630570809795034?t=qJyh4SGFZFllcYrqexGW-Q |url-status=live |access-date=2025-05-01 |website=[[X]] |archive-url=http://web.archive.org/web/20251004104021/https://x.com/fever_soft/status/1880630570809795034?t=qJyh4SGFZFllcYrqexGW-Q |archive-date=2025-10-04}}</ref> | ||
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==Impact on functionality== | ==Impact on functionality== | ||
While some functionality remains unauthenticated like in previous firmware versions (sending status information from the printer over the network, starting a print job using SD cards), the most important features now require authentication through a | While some functionality remains unauthenticated like in previous firmware versions (sending status information from the printer over the network, starting a print job using SD cards), the most important features now require authentication through a closed-source client called Bambu Connect<ref name="bambu-connect" />. These restricted features include: | ||
*Initializing prints via LAN or cloud mode | *Initializing prints via LAN or cloud mode | ||
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Previously, third-party software such as OrcaSlicer<ref name="orca-slicer-issue8063">{{Cite web |date=2025-01-16 |title=FW 1.08.03.00 from Bambu WILL BREAK ORCASLICER for X, P and A series #8063 |url=https://github.com/SoftFever/OrcaSlicer/issues/8063 |url-status=live |archive-url=http://web.archive.org/web/20250708192842/https://github.com/SoftFever/OrcaSlicer/issues/8063 |archive-date=2025-07-08 |access-date=2025-05-01 |website=[[GitHub]]}}</ref> could interact with Bambu Lab printers via the open-source Bambu Studio and proprietary network plug-ins. While Bambu Connect provides a limited URL-based API to initiate prints, most functionality previously openly available is now restricted to Bambu's ecosystem<ref name="bambulab-forum-135400/9" />. | Previously, third-party software such as OrcaSlicer<ref name="orca-slicer-issue8063">{{Cite web |date=2025-01-16 |title=FW 1.08.03.00 from Bambu WILL BREAK ORCASLICER for X, P and A series #8063 |url=https://github.com/SoftFever/OrcaSlicer/issues/8063 |url-status=live |archive-url=http://web.archive.org/web/20250708192842/https://github.com/SoftFever/OrcaSlicer/issues/8063 |archive-date=2025-07-08 |access-date=2025-05-01 |website=[[GitHub]]}}</ref> could interact with Bambu Lab printers via the open-source Bambu Studio and proprietary network plug-ins. While Bambu Connect provides a limited URL-based API to initiate prints, most functionality previously openly available is now restricted to Bambu's ecosystem<ref name="bambulab-forum-135400/9" />. | ||
Additionally, third-party accessories such as Panda Touch used to allow users to control their printers with a standalone device. Panda Touch was especially popular amongst P series printer owners since P series printers contain a monochromatic screen with a D-pad by default for printer control whereas Panda Touch featured a full-color touch screen According to Big Tree Tech (BTT), the manufacturer of the Panda Touch, they urge users of Panda Touch not to update firmware any further since doing so would foreseeably permanently break compatibility with users' printers and their Panda Touch. <ref name=":0" /> | |||
==Communication with Panda Touch developers== | ==Communication with Panda Touch developers== | ||
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Primary criticisms of Bambu were: | Primary criticisms of Bambu were: | ||
*'''Lack of transparency''': SoftFever reported that the limited warning given to OrcaSlicer developers preceded community engagement with existing customers.<ref name="orca-slicer-issue8063" /> Point to the contrary: the new firmware is in beta and Bambu Connect middleware contains temporary compromises to allow third-party slicers to work as before. | *'''Lack of transparency''': SoftFever reported that the limited warning given to OrcaSlicer developers preceded community engagement with existing customers.<ref name="orca-slicer-issue8063" /> Point to the contrary: the new firmware is in beta and Bambu Connect middleware contains temporary compromises to allow third-party slicers to work as before. | ||
*'''Lack of follow-through:''' As of January 2025, SoftFever, OrcaSlicer's lead developer, did not have API keys for Bambu Connect, a necessary layer of Bambu software that would need to be integrated into OrcaSlicer. Some community members questioned whether Bambu Lab's outreach to OrcaSlicer was a substantive collaboration effort.<ref name=":1" /> | *'''Lack of follow-through:''' As of January 2025, SoftFever, OrcaSlicer's lead developer, did not have API keys for Bambu Connect, a necessary layer of Bambu software that would need to be integrated into OrcaSlicer. Some community members questioned whether Bambu Lab's outreach to OrcaSlicer was a substantive collaboration effort.<ref name=":1">{{Cite web |last=@fever_soft |date=2025-01-18 |title=This is definitely a bummer. I was negotiating for an authorization key to allow OrcaSlicer to communicate with their device like BambuStudio does, but today I was told they won't support this. Only their slicer can send prints directly; others must use their Bambu Connect application |url=https://x.com/fever_soft/status/1880630570809795034?t=qJyh4SGFZFllcYrqexGW-Q |url-status=live |access-date=2025-05-01 |website=[[X]] |archive-url=http://web.archive.org/web/20251004104021/https://x.com/fever_soft/status/1880630570809795034?t=qJyh4SGFZFllcYrqexGW-Q |archive-date=2025-10-04}}</ref> | ||
*'''Disregard for open-source collaboration''': OrcaSlicer is open-source software developed under the AGPL-3.0 license.<ref name="softfever-orcaslicer-license" /> The decision to restrict network APIs in favor of proprietary systems such as Bambu Connect removes customer choice in how the printer is operated. | *'''Disregard for open-source collaboration''': OrcaSlicer is open-source software developed under the AGPL-3.0 license.<ref name="softfever-orcaslicer-license" /> The decision to restrict network APIs in favor of proprietary systems such as Bambu Connect removes customer choice in how the printer is operated. | ||
*'''Token support for third-party tools''': While Bambu Connect provides a workaround for third-party slicer use, it restricts functionality and complicates workflows, leading many to question the sincerity of Bambu's stated support for open-source tools<ref name="bambu-connect" />. | *'''Token support for third-party tools''': While Bambu Connect provides a workaround for third-party slicer use, it restricts functionality and complicates workflows, leading many to question the sincerity of Bambu's stated support for open-source tools<ref name="bambu-connect" />. | ||
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===Custom firmware development=== | ===Custom firmware development=== | ||
Discussions within the community | Discussions took place within the community concerning the development of custom firmware as an alternative to Bambu's official updates. One prominent project mentioned in forums is the development of custom firmware for the X1-series printers, such as the "X1Plus Custom Firmware"<ref name="bambulab-forum-134549/12">{{Cite web |date=2025-01-14 |title=Bambu Studio 1.10.2 Public Beta |url=https://forum.bambulab.com/t/bambu-studio-1-10-2-public-beta/134549/12 |url-status=live |archive-url=https://ghostarchive.org/archive/u4vpc |archive-date=2026-03-30 |access-date=2025-05-01 |website=[[Bambu Lab]] Community Forum}}</ref>. This firmware aims to: | ||
*Restore direct network control and third-party slicer compatibility. | *Restore direct network control and third-party slicer compatibility. | ||
*Re-enable previously available features such as motion-system adjustments, temperature control, and AMS settings without requiring proprietary software. | *Re-enable previously available features such as motion-system adjustments, temperature control, and AMS settings without requiring proprietary software. | ||
*Provide users with greater flexibility in integrating printers with home-automation systems and workflows. | *Provide users with greater flexibility in integrating printers with home-automation systems and workflows. | ||
However, custom firmware development faces several challenges, including: | However, custom firmware development faces several challenges{{CitationNeeded}}, including: | ||
*Limited documentation and proprietary hardware components, which complicate reverse-engineering efforts. | *Limited documentation and proprietary hardware components, which complicate reverse-engineering efforts. | ||
*The potential voiding of warranties and risks of bricking devices. | *The potential voiding of warranties and risks of bricking devices. | ||
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[[Bambu Lab LAN mode guide]] | [[Bambu Lab LAN mode guide]] | ||
==Community tools and scripts== | ==Community tools and scripts== | ||
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==Cease and desist against the OrcaSlicer-bambulab re-enablement project== | ==Cease and desist against the OrcaSlicer-bambulab re-enablement project== | ||
In April 2026, Bambu Lab sent a cease-and-desist communication to the developer of a third-party OrcaSlicer fork that had restored direct printer control after the Authorization Control System rollout. The project was wiped from public view the same day the threat was delivered, and the developer published a summary of Bambu Lab's allegations but not the letter itself, citing Bambu Lab's refusal to authorize publication.<ref name="jarczak-readme" /> The full public-record account includes a parallel May 7, 2026 Bambu Lab blog post | In April 2026, Bambu Lab sent a cease-and-desist communication to the developer of a third-party OrcaSlicer fork that had restored direct printer control after the Authorization Control System rollout. The project was wiped from public view the same day the threat was delivered, and the developer published a summary of Bambu Lab's allegations but not the letter itself, citing Bambu Lab's refusal to authorize publication.<ref name="jarczak-readme" />{{CitationNeeded}} The full public-record account includes a parallel May 7, 2026 Bambu Lab blog post and three same-day public Reddit replies from the maintainer. | ||
=== | ===OrcaSlicer=== | ||
OrcaSlicer is a free, open-source slicer: a program that converts a 3D model file into the layer-by-layer instructions (G-code) a 3D printer needs to produce the physical object. It is maintained by the developer SoftFever and draws from Bambu Lab's Bambu Studio, which is itself a fork of Prusa Research's PrusaSlicer.<ref name="softfever-orcaslicer">{{Cite web |last=SoftFever |title=OrcaSlicer |url=https://github.com/SoftFever/OrcaSlicer |url-status=live |access-date=2026-05-04 |website=[[GitHub]]}}</ref> Bambu Studio in turn descends from Slic3r, the upstream project Prusa Research forked.<ref name="slic3r-repo">{{Cite web |title=Slic3r |url=https://github.com/slic3r/Slic3r |website=GitHub |access-date=2026-05-10 |url-status=live}}</ref><ref name="prusaslicer-license">{{Cite web |title=PrusaSlicer LICENSE (AGPL-3.0) |url=https://github.com/prusa3d/PrusaSlicer/blob/master/LICENSE |website=GitHub |publisher=Prusa Research |access-date=2026-05-10 |url-status=live}}</ref> OrcaSlicer is widely used by owners of Bambu Lab printers as an alternative to Bambu Studio, | OrcaSlicer is a free, open-source slicer: a program that converts a 3D model file into the layer-by-layer instructions (G-code) a 3D printer needs to produce the physical object. It is maintained by the developer SoftFever and draws from Bambu Lab's Bambu Studio, which is itself a fork of Prusa Research's PrusaSlicer.<ref name="softfever-orcaslicer">{{Cite web |last=SoftFever |title=OrcaSlicer |url=https://github.com/SoftFever/OrcaSlicer |url-status=live |access-date=2026-05-04 |website=[[GitHub]]}}</ref> Bambu Studio in turn descends from Slic3r, the upstream project Prusa Research forked.<ref name="slic3r-repo">{{Cite web |title=Slic3r |url=https://github.com/slic3r/Slic3r |website=GitHub |access-date=2026-05-10 |url-status=live}}</ref><ref name="prusaslicer-license">{{Cite web |title=PrusaSlicer LICENSE (AGPL-3.0) |url=https://github.com/prusa3d/PrusaSlicer/blob/master/LICENSE |website=GitHub |publisher=Prusa Research |access-date=2026-05-10 |url-status=live}}</ref> OrcaSlicer is widely used by owners of Bambu Lab printers as an alternative to Bambu Studio, and it ships under the AGPL-3.0 license.<ref name="softfever-orcaslicer" /><ref name="softfever-orcaslicer-license">{{Cite web |title=OrcaSlicer LICENSE.txt (AGPL-3.0) |url=https://github.com/SoftFever/OrcaSlicer/blob/main/LICENSE.txt |website=GitHub |publisher=SoftFever |access-date=2026-05-10 |url-status=live}}</ref><ref name="xda-jarczak">{{Cite web |last=Batt |first=Simon |date=2026-04-23 |title=A developer restored OrcaSlicer's features that Bambu Lab killed — then the legal threats arrived |url=https://www.xda-developers.com/developer-restored-orcaslicers-features-bambu-lab-killed-legal-threats-arrived/ |url-status=live |archive-url=https://web.archive.org/web/20260427233833/https://www.xda-developers.com/developer-restored-orcaslicers-features-bambu-lab-killed-legal-threats-arrived/ |archive-date=2026-04-27 |access-date=2026-05-04 |website=XDA Developers}}</ref> | ||
===Restrictions introduced by the Authorization Control System=== | ===Restrictions introduced by the Authorization Control System=== | ||
The Authorization Control System announced on January 16, 2025 gated print initiation, motion control, fan | The Authorization Control System announced on January 16, 2025 gated print initiation, motion control, fan and hotend temperature control, AMS configuration, calibrations, remote video, and firmware upgrade behind a Bambu-issued authentication path. Owners who installed the new firmware could no longer send print jobs from third-party slicers directly over the local network; they had to route those jobs through a new closed-source middleware, Bambu Connect.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> SoftFever was not given API keys for Bambu Connect and stated publicly that direct print sending from OrcaSlicer would not be supported going forward.<ref name=":1" /> | ||
=== OrcaSlicer-bambulab fork=== | === OrcaSlicer-bambulab fork=== | ||
On April 23, 2026, the developer Pawel Jarczak (GitHub user <code>jarczakpawel</code>) made a public fork named OrcaSlicer-bambulab at <code>github.com/jarczakpawel/OrcaSlicer-bambulab</code>. The fork restored the ability to send print jobs from OrcaSlicer directly to Bambu Lab printers without routing through Bambu Connect.<ref name="xda-jarczak" /> According to Jarczak's own description, the fork worked by reaching the printer through a Linux-side workflow Bambu Lab had not yet disabled, | On April 23, 2026, the developer Pawel Jarczak (GitHub user <code>jarczakpawel</code>) made a public fork named OrcaSlicer-bambulab at <code>github.com/jarczakpawel/OrcaSlicer-bambulab</code>. The fork restored the ability to send print jobs from OrcaSlicer directly to Bambu Lab printers without routing through Bambu Connect.<ref name="xda-jarczak" /> According to Jarczak's own description, the fork worked by reaching the printer through a Linux-side workflow Bambu Lab had not yet disabled, and was built on publicly available Bambu Studio source code combined with the developer's own integration layer; it did not redistribute Bambu Lab's proprietary networking plugin binaries.<ref name="jarczak-readme" /><ref name="3druck-jarczak">{{Cite web |date=2026-04-30 |title=Developer ends OrcaSlicer fork after Bambu Lab threatens legal action |url=https://3druck.com/en/programs/developer-terminates-orcaslicer-fork-after-bambu-lab-threatens-to-sue-32156744/ |url-status=live |access-date=2026-05-04 |website=3Druck.com}}</ref> Jarczak also maintained a sibling fork at <code>github.com/jarczakpawel/BambuStudio-BMCU</code> that added support for a third-party multi-color unit (BMCU); that repository remained live as of May 9, 2026.<ref name="jarczak-bmcu">{{Cite web |last=Jarczak |first=Pawel |title=BambuStudio-BMCU |url=https://github.com/jarczakpawel/BambuStudio-BMCU |website=GitHub |access-date=2026-05-10 |url-status=live}}</ref> | ||
=== | ===Cease and desist=== | ||
Bambu Lab contacted Jarczak directly | Bambu Lab contacted Jarczak directly and demanded removal of the fork. According to Jarczak's own first-person account in his public archive README, Bambu Lab "referred to legal materials and stated that a cease and desist letter had been prepared," and alleged that the implementation: | ||
<blockquote>''impersonated Bambu Studio, bypassed their authorization controls, violated their Terms of Use, involved "reverse engineering", and could allow modified forks to send arbitrary commands to printers.''</blockquote><ref name="jarczak-readme" /> Jarczak rejected the reverse-engineering characterization, stating that his work was based on publicly available Bambu Studio source code, which Bambu Lab releases under the AGPL-3.0 license.<ref name="jarczak-readme" /><ref name="3druck-jarczak" /> Jarczak disputed the broader characterization and asked for specifics: the exact files or commits at issue, | <blockquote>''impersonated Bambu Studio, bypassed their authorization controls, violated their Terms of Use, involved "reverse engineering", and could allow modified forks to send arbitrary commands to printers.''</blockquote><ref name="jarczak-readme" /> Jarczak rejected the reverse-engineering characterization, stating that his work was based on publicly available Bambu Studio source code, which Bambu Lab releases under the AGPL-3.0 license.<ref name="jarczak-readme" /><ref name="3druck-jarczak" /> Jarczak disputed the broader characterization and asked for specifics: the exact files or commits at issue, and the exact legal or contractual basis. He reports receiving "further broad accusations" instead of that specificity.<ref name="jarczak-readme" /> Bambu Lab refused consent for publication of the correspondence itself, and Jarczak elected to honor that refusal while retaining the letter.<ref name="jarczak-readme" /> The repository was wiped the same day the threat was delivered.<ref name="jarczak-readme" /><ref name="xda-jarczak" /> Jarczak removed the contents voluntarily and stated this was a practical decision, not an admission that the legal or technical allegations were correct; in his own words from the public archive notice: | ||
<blockquote>''I removed the repository voluntarily. That removal should not be interpreted as an admission that all legal or technical allegations made against the project were correct.''</blockquote><ref name="jarczak-readme" /> | <blockquote>''I removed the repository voluntarily. That removal should not be interpreted as an admission that all legal or technical allegations made against the project were correct.''</blockquote><ref name="jarczak-readme" /> | ||
XDA Developers reported that Bambu Lab had not responded to its request for comment as of publication.<ref name="xda-jarczak" /> 3Druck independently confirmed the same set of allegations, citing Jarczak's GitHub statement.<ref name="3druck-jarczak" /> Tom's Hardware also covered the takedown on April 29, 2026.<ref name="tomshardware-jarczak">{{Cite web |title=Developer re-enables 3D printer features that Bambu Lab disabled, firm promptly threatens legal action — OrcaSlicer-BambuLab project now shuttered |url=https://www.tomshardware.com/3d-printing/developer-re-enables-3d-printer-features-that-bambu-lab-disabled-firm-promptly-threatens-legal-action-orcaslicer-bambulab-project-now-shuttered |website=Tom's Hardware |date=2026-04-29 |access-date=2026-05-10 |url-status=live}}</ref> The trade outlet Manufactur3D added context on May 1, 2026, including that the dispute had become a flashpoint in the wider 3D-printing community.<ref name="manufactur3d-controversy">{{Cite web |title=Bambu Lab OrcaSlicer Controversy Ignites After Legal Threats |url=https://manufactur3dmag.com/bambu-lab-orcaslicer-controversy-escalates/ |website=Manufactur3D |date=2026-05-01 |access-date=2026-05-10 |url-status=live}}</ref> | XDA Developers reported that Bambu Lab had not responded to its request for comment as of publication.<ref name="xda-jarczak" /> 3Druck independently confirmed the same set of allegations, citing Jarczak's GitHub statement.<ref name="3druck-jarczak" /> Tom's Hardware also covered the takedown on April 29, 2026.<ref name="tomshardware-jarczak">{{Cite web |title=Developer re-enables 3D printer features that Bambu Lab disabled, firm promptly threatens legal action — OrcaSlicer-BambuLab project now shuttered |url=https://www.tomshardware.com/3d-printing/developer-re-enables-3d-printer-features-that-bambu-lab-disabled-firm-promptly-threatens-legal-action-orcaslicer-bambulab-project-now-shuttered |website=Tom's Hardware |date=2026-04-29 |access-date=2026-05-10 |url-status=live}}</ref> The trade outlet Manufactur3D added context on May 1, 2026, including that the dispute had become a flashpoint in the wider 3D-printing community.<ref name="manufactur3d-controversy">{{Cite web |title=Bambu Lab OrcaSlicer Controversy Ignites After Legal Threats |url=https://manufactur3dmag.com/bambu-lab-orcaslicer-controversy-escalates/ |website=Manufactur3D |date=2026-05-01 |access-date=2026-05-10 |url-status=live}}</ref> | ||
The publicly documented allegations track Bambu Lab's [[Terms of Service]] | The publicly documented allegations track Bambu Lab's [[Terms of Service]] and an "authorization bypass" framing.<ref name=":2" /><ref name="jarczak-readme" /> Because the letter itself was not made public, no primary source confirms which specific statute, if any, Bambu Lab invoked; neither Jarczak's account nor the secondary reporting names a specific statute, including the [[DMCA Section 1201|DMCA §1201]] anti-circumvention provision, as part of Bambu Lab's claim. The upstream OrcaSlicer maintainer SoftFever was not named in the cease-and-desist, has issued no public statement on the fork or the letter, and the upstream repository remains active.<ref name="softfever-orcaslicer" /> | ||
===Public timeline=== | ===Public timeline=== | ||
*'''January 16, 2025.''' Bambu Lab announced "Firmware Update: Introducing the New Authorization Control System," describing the firmware-gated authorization model.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> | *'''January 16, 2025.''' Bambu Lab announced "Firmware Update: Introducing the New Authorization Control System," describing the firmware-gated authorization model.<ref name="firmware-update-introducing-new-authorization-control-system-2" /> | ||
*'''Spring 2026.''' Pawel Jarczak published <code>OrcaSlicer-bambulab</code> | *'''Spring 2026.''' Pawel Jarczak published <code>OrcaSlicer-bambulab</code> and a sibling repository <code>BambuStudio-BMCU</code> on GitHub.<ref name="jarczak-readme" /><ref name="jarczak-bmcu" /> | ||
*'''Late April 2026.''' Bambu Lab contacted Jarczak privately on Reddit | *'''Late April 2026.''' Bambu Lab contacted Jarczak privately on Reddit and demanded removal of the OrcaSlicer fork. Per Jarczak's public README, Bambu Lab's allegations were impersonation of Bambu Studio, bypass of authorization controls, ToS violation, reverse engineering, and the potential for modified forks to send arbitrary commands to printers.<ref name="jarczak-readme" /> | ||
*'''Around April 23, 2026.''' Jarczak removed the <code>OrcaSlicer-bambulab</code> repository voluntarily | *'''Around April 23, 2026.''' Jarczak removed the <code>OrcaSlicer-bambulab</code> repository voluntarily, and replaced its contents with a public archive notice; <code>jarczakpawel/BambuStudio-BMCU</code> remained live as of May 9, 2026.<ref name="jarczak-readme" /><ref name="jarczak-bmcu" /> | ||
*'''May 7, 2026.''' Bambu Lab published "Setting the record straight on Cloud Access and Community" on its blog | *'''May 7, 2026.''' Bambu Lab published "Setting the record straight on Cloud Access and Community" on its blog and posted a parallel announcement on r/BambuLab the same day.<ref name="bambu-blog-record-straight" /><ref name="bambu-reddit-record-straight">{{Cite web |last=BambuLab |title=Setting the record straight on Cloud Access and Community |url=https://www.reddit.com/r/BambuLab/comments/1t66ru1/setting_the_record_straight_on_cloud_access_and/ |website=Reddit |date=2026-05-07 |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''May 7, 2026 (same day).''' A Reddit user posting as <code>Low-Anything6975</code> replied publicly under three top-level comments on the r/BambuLab thread. The first reply pinpointed the file path | *'''May 7, 2026 (same day).''' A Reddit user posting as <code>Low-Anything6975</code> replied publicly under three top-level comments on the r/BambuLab thread. The first reply pinpointed the file path and code line in Bambu's own AGPL source where the User-Agent string is generated.<ref name="pawel-reddit-okg9iih">{{Cite web |last=Low-Anything6975 |title=Reply on User-Agent attribution in Bambu Studio AGPL source code |url=https://www.reddit.com/r/BambuLab/comments/1t66ru1/comment/okg9iih/ |website=Reddit |date=2026-05-07 |access-date=2026-05-10 |url-status=live}}</ref> The second reply addressed the cloud Terms of Service and AGPL rights to use, modify, and redistribute.<ref name="pawel-reddit-okguwzs">{{Cite web |last=Low-Anything6975 |title=Reply on cloud Terms of Service and AGPL rights to use, modify and redistribute |url=https://www.reddit.com/r/BambuLab/comments/1t66ru1/comment/okguwzs/ |website=Reddit |date=2026-05-07 |access-date=2026-05-10 |url-status=live}}</ref> The third reply articulated the plugin-severability symmetry argument.<ref name="pawel-reddit-okiacag">{{Cite web |last=Low-Anything6975 |title=Reply on plugin severability symmetry between AGPL forks and Bambu Lab cloud |url=https://www.reddit.com/r/BambuLab/comments/1t66ru1/comment/okiacag/ |website=Reddit |date=2026-05-07 |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''May 9, 2026.''' Jarczak's public archive README was last updated; <code>BambuStudio-BMCU</code> remained live.<ref name="jarczak-readme" /><ref name="jarczak-bmcu" /> | *'''May 9, 2026.''' Jarczak's public archive README was last updated; <code>BambuStudio-BMCU</code> remained live.<ref name="jarczak-readme" /><ref name="jarczak-bmcu" /> | ||
*'''May 9, 2026.''' Right-to-repair advocate Louis Rossmann publicly pledged $10,000 toward Jarczak's legal defense if Bambu Lab proceeded with the threatened lawsuit in a YouTube video titled "I'll put up $10,000 to teach bambu labs a lesson."<ref name="rossmann-youtube-pledge">{{Cite web |last=Rossmann |first=Louis |title=I'll put up $10,000 to teach bambu labs a lesson |url=https://www.youtube.com/watch?v=qLLVn6XT7v0 |website=YouTube |date=2026-05-09 |access-date=2026-05-10 |url-status=live}}</ref> | *'''May 9, 2026.''' Right-to-repair advocate Louis Rossmann publicly pledged $10,000 toward Jarczak's legal defense if Bambu Lab proceeded with the threatened lawsuit in a YouTube video titled "I'll put up $10,000 to teach bambu labs a lesson."<ref name="rossmann-youtube-pledge">{{Cite web |last=Rossmann |first=Louis |title=I'll put up $10,000 to teach bambu labs a lesson |url=https://www.youtube.com/watch?v=qLLVn6XT7v0 |website=YouTube |date=2026-05-09 |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''May 10, 2026.''' Tom's Hardware reported Rossmann's pledge | *'''May 10, 2026.''' Tom's Hardware reported Rossmann's pledge and accompanying public statement directed at Bambu Lab.<ref name="tomshardware-rossmann-pledge">{{Cite web |title=Louis Rossmann tells 3D printer maker Bambu Lab to 'Go (Bleep) yourself' over its threatened lawsuit against enthusiast — Right to Repair advocate offers to pay the legal fees for a threatened OrcaSlicer developer |url=https://www.tomshardware.com/3d-printing/louis-rossmann-tells-3d-printer-maker-bambu-lab-to-go-bleep-yourself-over-its-lawsuit-against-enthusiast-right-to-repair-advocate-offers-to-pay-the-legal-fees-for-a-threatened-orcaslicer-developer |website=Tom's Hardware |date=2026-05-10 |access-date=2026-05-10 |url-status=live}}</ref> | ||
===Bambu Lab's public response=== | ===Bambu Lab's public response=== | ||
Bambu Lab's May 7, 2026 blog post conceded that AGPL forks of Bambu Studio are permitted, recast the dispute as one about cloud access | Bambu Lab's May 7, 2026 blog post conceded that AGPL forks of Bambu Studio are permitted, recast the dispute as one about cloud access and "impersonation" rather than open source, and declined any responsibility under AGPL for the cloud back-end. Bambu Lab characterized the AGPL question: | ||
<blockquote>''Bambu Studio is an open-source project under the AGPL-3.0 license. Anyone can take its code, modify it, and distribute it. This is not a matter of our "permission" - it is simply how the license and open source work.''</blockquote><ref name="bambu-blog-record-straight" /> | <blockquote>''Bambu Studio is an open-source project under the AGPL-3.0 license. Anyone can take its code, modify it, and distribute it. This is not a matter of our "permission" - it is simply how the license and open source work.''</blockquote><ref name="bambu-blog-record-straight" /> | ||
The same post bifurcated AGPL code from cloud infrastructure: | The same post bifurcated AGPL code from cloud infrastructure: | ||
| Line 253: | Line 245: | ||
==Open-source licensing dispute== | ==Open-source licensing dispute== | ||
Since Bambu Studio is licensed under the AGPL-3.0 license, the attempts by Bambu Lab to exert control over the software's editing and use have been described as being in conflict with the license.{{CitationNeeded}} | |||
===Bambu Studio AGPL-3.0 licensing=== | ===Bambu Studio AGPL-3.0 licensing=== | ||
Bambu Lab elected to release Bambu Studio under the [[GNU Affero General Public License|GNU Affero General Public License version 3]] (AGPL-3.0). The LICENSE file in the upstream Bambu Studio repository is the verbatim AGPL-3.0 text.<ref name="bambustudio-license" /><ref name="agpl3-license">{{Cite web |title=GNU Affero General Public License Version 3 |url=https://www.gnu.org/licenses/agpl-3.0.html |website=GNU Project |publisher=Free Software Foundation |date=2007-11-19 |access-date=2026-05-10 |url-status=live}}</ref> The AGPL is a copyleft license: anyone who receives the code can use, modify | Bambu Lab elected to release Bambu Studio under the [[GNU Affero General Public License|GNU Affero General Public License version 3]] (AGPL-3.0). The LICENSE file in the upstream Bambu Studio repository is the verbatim AGPL-3.0 text.<ref name="bambustudio-license" /><ref name="agpl3-license">{{Cite web |title=GNU Affero General Public License Version 3 |url=https://www.gnu.org/licenses/agpl-3.0.html |website=GNU Project |publisher=Free Software Foundation |date=2007-11-19 |access-date=2026-05-10 |url-status=live}}</ref> The AGPL is a copyleft license: anyone who receives the code can use, modify and redistribute it, on the condition that they pass the same rights to everyone they distribute to, and that they make their modifications available as source code.<ref name="agpl3-license" /> The final paragraph of Section 10 (titled "Automatic Licensing of Downstream Recipients") begins: | ||
<blockquote>''You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License.''</blockquote><ref name="agpl3-section10">{{Cite web |title=GNU Affero General Public License Version 3, Section 10 (Automatic Licensing of Downstream Recipients) |url=https://www.gnu.org/licenses/agpl-3.0.html#section10 |website=GNU Project |publisher=Free Software Foundation |date=2007-11-19 |access-date=2026-05-10 |url-status=live}}</ref> The paragraph continues with examples of prohibited restrictions, including imposing license fees or royalties for exercise of the granted rights | <blockquote>''You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License.''</blockquote><ref name="agpl3-section10">{{Cite web |title=GNU Affero General Public License Version 3, Section 10 (Automatic Licensing of Downstream Recipients) |url=https://www.gnu.org/licenses/agpl-3.0.html#section10 |website=GNU Project |publisher=Free Software Foundation |date=2007-11-19 |access-date=2026-05-10 |url-status=live}}</ref> The paragraph continues with examples of prohibited restrictions, including imposing license fees or royalties for exercise of the granted rights and initiating patent litigation against users of the program.<ref name="agpl3-section10" /> | ||
Section 7, paragraph 4, lists the only kinds of additional terms a licensor may attach to AGPL-licensed code | Section 7, paragraph 4, lists the only kinds of additional terms a licensor may attach to AGPL-licensed code and states that downstream recipients may strip out anything outside that list: | ||
<blockquote>''All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.''</blockquote><ref name="agpl3-section7">{{Cite web |title=GNU Affero General Public License Version 3, Section 7 (Additional Terms) |url=https://www.gnu.org/licenses/agpl-3.0.html#section7 |website=GNU Project |publisher=Free Software Foundation |date=2007-11-19 |access-date=2026-05-10 |url-status=live}}</ref> | <blockquote>''All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.''</blockquote><ref name="agpl3-section7">{{Cite web |title=GNU Affero General Public License Version 3, Section 7 (Additional Terms) |url=https://www.gnu.org/licenses/agpl-3.0.html#section7 |website=GNU Project |publisher=Free Software Foundation |date=2007-11-19 |access-date=2026-05-10 |url-status=live}}</ref> | ||
Bambu Lab's May 7, 2026 blog post acknowledges the licensing posture.<ref name="bambu-blog-record-straight" /> | Bambu Lab's May 7, 2026 blog post acknowledges the licensing posture.<ref name="bambu-blog-record-straight" /> | ||
| Line 269: | Line 261: | ||
§ 3.5(5) states: | § 3.5(5) states: | ||
<blockquote>''(5) attempt to destroy, bypass, change, invalidate or escape from the Product and/or any digital rights management system that is part of the organic composition of the Product''</blockquote><ref name=":2" /> | <blockquote>''(5) attempt to destroy, bypass, change, invalidate or escape from the Product and/or any digital rights management system that is part of the organic composition of the Product''</blockquote><ref name=":2" /> | ||
Bambu Lab's Terms define "Product" to include Bambu Lab devices | Bambu Lab's Terms define "Product" to include Bambu Lab devices and the software contained therein.<ref name=":2" /> Bambu Lab's own May 7, 2026 blog post confirms that Bambu Studio is "the software" in question.<ref name="bambu-blog-record-straight" /> | ||
Commentators have noted{{CitationNeeded}} that AGPL § 7 ¶ 4 & § 10 forbid the licensor from imposing additional restrictions on AGPL-granted rights, and TOS § 3.4 / § 3.5 forbid the modification, copying, reverse engineering, decompilation, and redistribution that AGPL-3.0 explicitly grants, resulting in conflict between the AGPL license and Bambu Lab's terms. Both documents exist on Bambu Lab's servers; the FSF's published GPL FAQ classifies a network of dynamically linked components and function calls as "a single combined program" for license-obligation purposes,<ref name="fsf-gpl-faq-plugins">{{Cite web |title=Frequently Asked Questions about the GNU Licenses (GPLPlugins anchor) |url=https://www.gnu.org/licenses/gpl-faq.html#GPLPlugins |website=GNU Project |publisher=Free Software Foundation |access-date=2026-05-10 |url-status=live}}</ref>. | |||
The same Reddit user addressed this directly on May 7, 2026: | The same Reddit user addressed this directly on May 7, 2026: | ||
<blockquote>''Cloud ToS also cannot erase AGPL rights to use, modify and redistribute that code.''</blockquote><ref name="pawel-reddit-okguwzs" /> | <blockquote>''Cloud ToS also cannot erase AGPL rights to use, modify and redistribute that code.''</blockquote><ref name="pawel-reddit-okguwzs" /> | ||
===User-Agent identity metadata=== | ===User-Agent identity metadata=== | ||
The "falsified identity metadata" Bambu Lab | The "falsified identity metadata" Bambu Lab describes as "impersonation" is the HTTP User-Agent string the fork emits when contacting Bambu Cloud. That string is generated by Bambu Lab's own AGPL-licensed source code. The User-Agent setter is in <code>src/slic3r/Utils/Http.cpp</code>, and assembles its value from constants defined in <code>version.inc</code>. The relevant line in <code>Http.cpp</code> reads: | ||
<blockquote>''::curl_easy_setopt(curl, CURLOPT_USERAGENT, SLIC3R_APP_NAME "/" SLIC3R_VERSION);''</blockquote><ref name="bambustudio-http-cpp">{{Cite web |title=Http.cpp source file (User-Agent setter at line 175) |url=https://github.com/bambulab/BambuStudio/blob/master/src/slic3r/Utils/Http.cpp |website=GitHub |publisher=Bambu Lab |access-date=2026-05-11 |url-status=live}}</ref> | <blockquote>''::curl_easy_setopt(curl, CURLOPT_USERAGENT, SLIC3R_APP_NAME "/" SLIC3R_VERSION);''</blockquote><ref name="bambustudio-http-cpp">{{Cite web |title=Http.cpp source file (User-Agent setter at line 175) |url=https://github.com/bambulab/BambuStudio/blob/master/src/slic3r/Utils/Http.cpp |website=GitHub |publisher=Bambu Lab |access-date=2026-05-11 |url-status=live}}</ref> | ||
The constants in <code>version.inc</code> set the application name | The constants in <code>version.inc</code> set the application name and version directly: | ||
<blockquote>''set(SLIC3R_APP_NAME "BambuStudio")'' | <blockquote>''set(SLIC3R_APP_NAME "BambuStudio")'' | ||
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<blockquote>''User-Agent is not authentication. It is just self-declared client metadata. Any program can set any User-Agent. And the most important part: this comes directly from your own AGPL code.''</blockquote><ref name="pawel-reddit-okg9iih" /> | <blockquote>''User-Agent is not authentication. It is just self-declared client metadata. Any program can set any User-Agent. And the most important part: this comes directly from your own AGPL code.''</blockquote><ref name="pawel-reddit-okg9iih" /> | ||
Whichever branch of the severability dilemma Bambu Lab takes in the previous subsection, the impersonation framing relies on Bambu Lab's own AGPL-licensed code generating the very header Bambu Lab calls falsified. | Whichever branch of the severability dilemma Bambu Lab takes in the previous subsection, the impersonation framing relies on Bambu Lab's own AGPL-licensed code generating the very header Bambu Lab calls falsified. | ||
===Who can enforce AGPL against Bambu Lab=== | ===Who can enforce AGPL against Bambu Lab=== | ||
Pawel Jarczak personally cannot bring | Pawel Jarczak personally cannot bring a direct AGPL enforcement action against Bambu Lab. The right to sue for AGPL violations belongs to the original authors whose code Bambu Lab built on top of: the [https://github.com/slic3r/Slic3r Slic3r contributors],<ref name="slic3r-repo" /> Prusa Research and the [https://github.com/prusa3d/PrusaSlicer/blob/master/LICENSE PrusaSlicer contributors],<ref name="prusaslicer-license" /> and the [https://github.com/SoftFever/OrcaSlicer/blob/main/LICENSE.txt SoftFever / OrcaSlicer maintainers].<ref name="softfever-orcaslicer-license" /> Jarczak's role in any formal complaint is reporter and witness, not plaintiff. | ||
The institutional capacity for AGPL enforcement on these facts sits with several organizations: | The institutional capacity for AGPL enforcement on these facts sits with several organizations: | ||
*'''[[Software Freedom Conservancy]] (SFC).''' SFC operates the only U.S.-based copyleft enforcement program currently litigating consumer-purchaser claims against a hardware manufacturer (the Vizio matter). Its [https://sfconservancy.org/copyleft-compliance/ copyleft-compliance program] handles strategic enforcement; Bradley M. Kuhn's AGPL § 7 expert report from <code>Neo4j v. PureThink</code> remains the strongest published doctrinal anchor for the Bambu Lab TOS-versus-AGPL argument.<ref name="sfc-copyleft-compliance">{{Cite web |title=Copyleft Compliance Projects |url=https://sfconservancy.org/copyleft-compliance/ |website=Software Freedom Conservancy |access-date=2026-05-10 |url-status=live}}</ref><ref name="sfc-kuhn-neo4j-2023" /> | *'''[[Software Freedom Conservancy]] (SFC).''' SFC operates the only U.S.-based copyleft enforcement program currently litigating consumer-purchaser claims against a hardware manufacturer (the Vizio matter). Its [https://sfconservancy.org/copyleft-compliance/ copyleft-compliance program] handles strategic enforcement; Bradley M. Kuhn's AGPL § 7 expert report from <code>Neo4j v. PureThink</code> remains the strongest published doctrinal anchor for the Bambu Lab TOS-versus-AGPL argument.<ref name="sfc-copyleft-compliance">{{Cite web |title=Copyleft Compliance Projects |url=https://sfconservancy.org/copyleft-compliance/ |website=Software Freedom Conservancy |access-date=2026-05-10 |url-status=live}}</ref><ref name="sfc-kuhn-neo4j-2023">{{Cite web |title=SFC's Policy Fellow Files Expert Report in Neo4j v. PureThink |url=https://sfconservancy.org/news/2023/feb/09/kuhn-neo4j-purethink-expert-report/ |website=Software Freedom Conservancy |date=2023-02-09 |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''Free Software Foundation (FSF).''' FSF drafted the AGPL | *'''Free Software Foundation (FSF).''' FSF drafted the AGPL and operates the [https://www.fsf.org/licensing/ Licensing and Compliance Lab]. FSF will not be the lead enforcement vehicle here because FSF does not hold copyright in BambuStudio; it can supply doctrinal authority, amicus filings, and public statements. FSF filed an amicus brief in <code>Neo4j v. Suhy</code> on March 3, 2025.<ref name="fsf-licensing">{{Cite web |title=Licensing and Compliance Lab |url=https://www.fsf.org/licensing/ |website=Free Software Foundation |access-date=2026-05-10 |url-status=live}}</ref><ref name="fsf-amicus-neo4j-2025">{{Cite web |title=FSF submits amicus brief in Neo4j v. Suhy |url=https://www.fsf.org/news/fsf-submits-amicus-brief-in-neo4j-v-suhy |website=Free Software Foundation |date=2025-03-03 |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''Free Software Foundation Europe (FSFE).''' FSFE convenes the [https://fsfe.org/activities/ln/ln.en.html European Legal Network] of free-software lawyers | *'''Free Software Foundation Europe (FSFE).''' FSFE convenes the [https://fsfe.org/activities/ln/ln.en.html European Legal Network] of free-software lawyers and is geographically appropriate to a Polish maintainer.<ref name="fsfe-legal-network">{{Cite web |title=Legal Network |url=https://fsfe.org/activities/ln/ln.en.html |website=Free Software Foundation Europe |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''Electronic Frontier Foundation (EFF).''' Not for AGPL enforcement, but for the maintainer's defensive posture. The [https://www.eff.org/issues/coders Coders' Rights Project] works on the legal issues developers face under DMCA, CFAA, | *'''Electronic Frontier Foundation (EFF).''' Not for AGPL enforcement, but for the maintainer's defensive posture. The [https://www.eff.org/issues/coders Coders' Rights Project] works on the legal issues developers face under DMCA, CFAA, and similar computer-crime laws and provides public guidance for reverse engineering and vulnerability disclosure.<ref name="eff-coders-rights">{{Cite web |title=Coders' Rights Project |url=https://www.eff.org/issues/coders |website=Electronic Frontier Foundation |access-date=2026-05-10 |url-status=live}}</ref> | ||
*'''iFixit | *'''iFixit and The Repair Association.''' Press reach and [[right to repair]] coalition framing. Neither litigates AGPL; both have established media reach and legislative relationships and have publicly tracked the Bambu Lab takedown in their channels. | ||
===Consequences for FOSS forks of corporate-sponsored AGPL projects=== | ===Consequences for FOSS forks of corporate-sponsored AGPL projects=== | ||
Louis Rossmann publicly pledged $10,000 toward Jarczak's legal defense if Bambu Lab proceeded with a lawsuit in a May 9, 2026 YouTube video,<ref name="rossmann-youtube-pledge" /> | Louis Rossmann publicly pledged $10,000 toward Jarczak's legal defense if Bambu Lab proceeded with a lawsuit in a May 9, 2026 YouTube video,<ref name="rossmann-youtube-pledge" /> and directed an explicit public statement at the company's leadership; Tom's Hardware reported the pledge on May 10, 2026.<ref name="tomshardware-rossmann-pledge" /> The 3D-printing trade press (3Druck, XDA, Tom's Hardware, Manufactur3D) covered the dispute as the immediate flashpoint. Enforcement organizations including the Free Software Foundation, Software Freedom Conservancy, FSFE, and Electronic Frontier Foundation have jurisdiction to bring AGPL claims, but no enforcement action involving Bambu Lab had been announced as of publication. The same question reaches every IoT-device vendor who ships AGPL or GPLv3 components with companion mobile apps and cloud back-ends, and every consumer-electronics company publishing open-source slicers, control panels, or firmware while routing user functionality through proprietary remote services. | ||
==Impact on professional users and privacy concerns== | ==Impact on professional users and privacy concerns== | ||
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==Comparisons to similar practices by other companies== | ==Comparisons to similar practices by other companies== | ||
Bambu Lab's new authorization | Bambu Lab's new authorization and authentication requirements have been compared to a number of practices by traditional printer manufacturers, such as [[HP]] and [[Epson]], who have faced backlash and litigation over [[digital rights management]] (DRM) practices in 2D printers.{{CitationNeeded}} | ||
A parallel from the 3D-printing industry is the 3D-printer manufacturer [[MakerBot]], whose 2012 shift from open-source, DIY-focused machines to closed-source, proprietary machines drove customers to less-expensive open-source competitors, as documented by Hackaday's 2016 obituary of the company.<ref>{{Cite web |last=Benchoff |first=Brian |date=2016-04-28 |title=The MakerBot Obituary |url=https://hackaday.com/2016/04/28/the-makerbot-obituary/ |url-status=live |archive-url=http://web.archive.org/web/20251208222057/https://hackaday.com/2016/04/28/the-makerbot-obituary/ |archive-date=2025-12-08 |access-date=2025-05-01 |website=[[Hackaday]]}}</ref> MakerBot was also accused of asserting ownership over publicly available, open-source designs uploaded to its 3D print repository, Thingiverse.<ref>{{Cite web |last=Biggs |first=John |date=2014-05-28 |title=MakerBot Responds To Critics Who Claim It Is Stealing Community IP |url=https://techcrunch.com/2014/05/28/makerbot-responds-to-critics-who-claim-it-is-stealing-community-ip/ |url-status=live |archive-url=http://web.archive.org/web/20251111041317/https://techcrunch.com/2014/05/28/makerbot-responds-to-critics-who-claim-it-is-stealing-community-ip/ |archive-date=2025-11-11 |access-date=2025-05-01 |website=[[TechCrunch]]}}</ref> | A parallel from the 3D-printing industry is the 3D-printer manufacturer [[MakerBot]], whose 2012 shift from open-source, DIY-focused machines to closed-source, proprietary machines drove customers to less-expensive open-source competitors, as documented by Hackaday's 2016 obituary of the company.<ref>{{Cite web |last=Benchoff |first=Brian |date=2016-04-28 |title=The MakerBot Obituary |url=https://hackaday.com/2016/04/28/the-makerbot-obituary/ |url-status=live |archive-url=http://web.archive.org/web/20251208222057/https://hackaday.com/2016/04/28/the-makerbot-obituary/ |archive-date=2025-12-08 |access-date=2025-05-01 |website=[[Hackaday]]}}</ref> MakerBot was also accused of asserting ownership over publicly available, open-source designs uploaded to its 3D print repository, Thingiverse.<ref>{{Cite web |last=Biggs |first=John |date=2014-05-28 |title=MakerBot Responds To Critics Who Claim It Is Stealing Community IP |url=https://techcrunch.com/2014/05/28/makerbot-responds-to-critics-who-claim-it-is-stealing-community-ip/ |url-status=live |archive-url=http://web.archive.org/web/20251111041317/https://techcrunch.com/2014/05/28/makerbot-responds-to-critics-who-claim-it-is-stealing-community-ip/ |archive-date=2025-11-11 |access-date=2025-05-01 |website=[[TechCrunch]]}}</ref> | ||
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==TOS restricting development of third party devices and accessories== | ==TOS restricting development of third party devices and accessories== | ||
Archived discussion threads from January 2024 confirm that the § 3.1 | Archived discussion threads from January 2024 confirm that a clause restricting the development of third party devices and accessories - § 3.1 - has been part of the Bambu Lab Terms of Use at least since then.<ref>{{Cite web |last=@X1Plus |title=X1plus community Bambu Lab firmware - A win for everyone? |url=https://www.reddit.com/r/3Dprinting/comments/18zaay0/x1plus_community_bambu_lab_firmware_a_win_for/kggqg4n/ |url-status=live |archive-url=https://web.archive.org/web/20260222212657/https://old.reddit.com/r/3Dprinting/comments/18zaay0/x1plus_community_bambu_lab_firmware_a_win_for/kggqg4n/ |archive-date=2026-02-22 |access-date=2025-05-01 |website=[[Reddit]]}}</ref> Community reaction was split: some readers argued the clause is intended to restrict third-party development, while others characterized it as standard boilerplate in vendor terms.<ref>{{Cite web |last=@mflexx |title=Not updated. And this part is shared by pretty much every company that has ever existed on this planet. That's just blatant karma farming at this point. |url=https://www.reddit.com/r/BambuLab/comments/1ibhhg7/updated_tos_shots_fired/m9i78kj/ |url-status=live |archive-url=https://web.archive.org/web/20260222212738/https://old.reddit.com/r/BambuLab/comments/1ibhhg7/updated_tos_shots_fired/m9i78kj/ |archive-date=2026-02-22 |access-date=2025-05-01 |website=[[Reddit]]}}</ref> | ||
Bambu Lab's Terms of Use § 3.1 states: | Bambu Lab's Terms of Use § 3.1 states: | ||
| Line 400: | Line 346: | ||
*[[GNU Affero General Public License]] | *[[GNU Affero General Public License]] | ||
*[[Software Freedom Conservancy]] | *[[Software Freedom Conservancy]] | ||
*[[Reverse Engineering Bambu Connect]] | |||
==References== | ==References== | ||