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A comment on The Dangers of California's Legislation to Censor 3D Printing. Parent comment

Re:The Dangers of California's Legislation to Censor 3D Prin... by kube-system on Tuesday April 14, 2026 @04:59PM (#47771457)
There was a panic about plastic guns back in the 80s too when the Glock came out, and Congress passed the Undetectable Firearms Act.

But it was just as misinformed as it is today -- practically speaking, only metal is suitable for the high pressure components of a gun. A common 9mm cartridge produces upwards of 35,000 psi.

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Re:The Dangers of California's Legislation to Censor 3D Prin... by saltyoldman on Wednesday April 15, 2026 @01:01AM (#47774862)
Aren't there metals that are undetectable/less detectable, like titanium or even stainless steel?
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Re:The Dangers of California's Legislation to Censor 3D Prin... by jandrewrogers on Wednesday April 15, 2026 @01:57AM (#47775202)
No, it doesn’t work like that in the modern world. The nature of the materials are pretty obvious to a remotely competent sensor.
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Re:The Dangers of California's Legislation to Censor 3D Prin... by RugnirViking on Wednesday April 15, 2026 @08:06AM (#47777940)
using what physical process? How exactly do they detect any metal? A genuine question.
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Re:The Dangers of California's Legislation to Censor 3D Prin... by kube-system on Wednesday April 15, 2026 @09:44AM (#47778888)
You can detect nonferrous metals by inducing eddy currents in them, then they become magnetic.
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