June 26, 2026
Print, panic, repeat
We Can Still Stop California's 3D Printer Surveillance Scheme
Critics say California wants your printer snitching while commenters call the whole thing absurd
TLDR: California’s assembly advanced a bill that critics say would make 3D printers monitor and block certain designs, even though opponents argue it won’t work and could hurt privacy and creativity. Commenters are mocking it as overreaching, easy to fool, and part of a bigger crackdown on personal tech.
California lawmakers just pushed forward a bill that critics say would force 3D printers to use built-in monitoring and blocking software meant to stop people from printing gun parts. But in the comments, the reaction was less polite policy debate and more full-on digital revolt. One person flatly called it more draconian than New York’s law, warning it could trap people inside locked-down brand-approved software. Another zoomed way out and declared it part of a “coordinated attack on computing,” tying it to other recent rules around devices and online access. Casual concern? Absolutely not. The vibe is this is bigger than printers.
The jokes were flying too. The funniest jab came from a commenter who noticed the California shape shown on a printer bed in the article kind of looks like an AR-15 grip, and gleefully imagined the state’s own outline getting flagged by the very system it wants to require. That one pretty much sums up the mood: how can a law this sweeping also look this easy to fool? Even the bill’s softer edits, like no longer criminalizing private resale, didn’t calm people down. Critics say the open-source carveout is useless if free software still has to include the same censorship system, and commenters seem to agree. The lone hopeful energy came from one practical post reminding everyone the EFF action page takes 30 seconds to use. So yes, the community is mad—but also mobilizing.
Key Points
- •The California State Assembly approved AB 2047, a bill that would require surveillance and blocking software for 3D printers, and the measure now moves to the state senate.
- •An amendment removed criminal penalties for private resale of 3D printers purchased before the software mandate takes effect.
- •The article says the bill still restricts open source use by requiring alternative tools to include compliant blocking software and by imposing ambiguous standards on developers.
- •The bill's algorithm standard was revised from preventing evasion by technically skilled users to substantially reducing foreseeable circumvention attempts.
- •The bill includes a commercial carveout for entertainment-industry use of 3D printers for props and costumes, while the article says smaller creators are not similarly covered.