this post was submitted on 10 Oct 2026
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San Diego County jumped into California’s sprawling ghost gun fight this week, suing a 3-D printing filament manufacturer it says hocks material for homespun firearms in violation of state law.

Working with the Giffords Law Center, the county counsel sued manufacturer Polymaker, alleging the company made a “strategic business choice” to market and sell 3-D printer filament to Californians for the express purpose of building illegal weapons. The polymer filament is sold in spools that feed into 3-D printers, allowing the devices to form designs created by their owners.

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[–] BigTrout75@lemmy.world 26 points 2 days ago (2 children)

Is this filament specifically designed for guns?

[–] Munkisquisher@lemmy.nz 33 points 2 days ago (1 children)

No, polymaker just have a big range of engineering friendly filament, just as they have pretty artsy ones, and low cost workhorse filament for makers

[–] nanometer1625@thelemmy.club 3 points 2 days ago (1 children)

Sounds like the lawsuit is on thin ice, then.

[–] chiliedogg@lemmy.world 8 points 2 days ago

They apparently sponsored a maker who prints guns, which is the justification.

Still stupid for a mountain of reasons, not least of which is that 3D printing guns is perfectly legal in many places.

Saudi Arabia can't go after the companies that sell oak barrels to Jack Daniels because alcohol is illegal there.

[–] humanspiral@lemmy.ca 7 points 2 days ago

It's like saying steel is specifically designed for guns. For plastics, stronger is a nice property for many applications.