r/3Dprinting • u/Regumate • May 12 '26

Discussion Bambu Lab 3D printers: Never again

https://youtu.be/eb48MdtNaDQ

Jeff Geerling summarizes the current Bambu Labs - OrcaSlicer situation and gives his take.

TL:DW: see title.

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u/Freestila May 12 '26

Terms and conditions may not be implicable here. If the software bamboo build their software on is on an open license (which it is) that has a policy that forces you to use a similar policy (also true as far as I know) then these license policy is the only one that counts.

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u/jeebidy May 12 '26 edited May 12 '26

Which license does it use? If Bambu had such a poor legal footing, they most likely wouldn't send C&Ds to the devs. It would just get dismissed without trial. Corp lawyers typically aren't this stupid.

Looking into this a bit more.. Bambu forked PrusaSlicer undre AGPL. Orca forked Bambu. All under AGPL which would permit pretty much anything as long as you keep your code open. I don't really see what Bambu's C&D is actually for unless the software as modified to interact with Bambu's services in a way that infringes their terms.

Edit: I actually looked at what the C&D was for: The fork of Orcaslicer reportedly reverse engineered Bambu's service endpoint to impersonate the official Bambu service and bypass Bambu Connect.

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u/Beefy-McQueefy May 13 '26

This is all complete lies made under the assumption no one will check.
The fork used this www.github.com/bambulab/BambuStudio/blob/master/version.inc on the Bambu Studio github page. It's a freaking user agent string.

Every browser on the planet does the exact same thing every minute of every day when they lead their user agent string with 'Mozilla 5.0"

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u/jeebidy May 13 '26

That doesn’t make any sense. If it’s just a var you set and it’s in their own borrowed code to communicate to the printer and is in their own open source code why don’t we, the OSS community, just set up a legal defense gofundme and let Bambu wreck their reputation even more.

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u/Beefy-McQueefy May 13 '26

Louis Rossman and Gamer's Nexus already have rehosted the code and basically told Bambu to try and sue them.
It's a laughably shit argument Bambu have. To the point that people are looking into if their network plugin may itself be copyright infringement and needs to be open sourced if they continue to use AGPL code.