this post was submitted on 19 Feb 2026
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135
California’s New Bill Requires DOJ-Approved 3D Printers That Report on Themselves (blog.adafruit.com)
submitted 4 hours ago* (last edited 4 hours ago) by Beep@lemmus.org to c/technology@lemmy.world
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California’s new bill requires DOJ-approved 3D printers that report on themselves targeting general-purpose machines.

Assembly Member Bauer-Kahan introduced AB-2047, the “California Firearm Printing Prevention Act,” on February 17th. The bill would ban the sale or transfer of any 3D printer in California unless it appears on a state-maintained roster of approved makes and models… certified by the Department of Justice as equipped with “firearm blocking technology.” Manufacturers would need to submit attestations for every make and model. The DOJ would publish a list. If your printer isn’t on the list by March 1, 2029, it can’t be sold. In addition, knowingly disabling or circumventing the blocking software is a misdemeanor.

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[–] IHeartBadCode@fedia.io 23 points 4 hours ago (2 children)

Just when I think California couldn't possibly come up with dumber laws, they deliver yet again.

There's genuine concerns they could be addressing but instead go after something that's going to be near impossible for them to enforce.

Blueprints for homemade 3D printers exist that can be built with a pretty short list of parts from Digikey.

[–] lettruthout@lemmy.world 4 points 3 hours ago

It’s not law yet, and may never be.

[–] bassomitron@lemmy.world 2 points 3 hours ago (1 children)

I was going to say, I thought open source 3D Printer designs/kits have been a thing for awhile. My friend just built his own last year using his original 3D printer to help in the process, lol

[–] CIA_chatbot@lemmy.world 5 points 3 hours ago (1 children)

The entire hobby is built on open source, it’s only very very recently that commercial hobby level printers were worth a damn

[–] grue@lemmy.world 2 points 1 hour ago* (last edited 1 hour ago)

...And even then, they're leveraging the open source under the hood. Even your locked-down Bambu piece of shit uses slicing software based on Slic3r.