DaddleDew comments on Are you ready for what it takes to stop ghost guns? New laws in California and New York might stop anyone from 3D printing guns — and create entirely new kinds of surveillance.

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[–] DaddleDew@lemmy.world 11 points 4 months ago* (last edited 4 months ago) (2 children)

I mean normal printers will not let you print money. That's what gave these idiots the idea to begin with I'd wager. But there are orders of magnitude in difference in difficulty between making a piece of software capable of autonomously recognizing a few existing designs of dollar bills and one that can tell a working gun part that can take a shape that can vary almost infinitely from other objects that can also take nearly infinite shapes.

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[–] elucubra@sopuli.xyz 15 points 4 months ago

They don't recognize bills. They recognize a pattern of tiny yellow rings in the bills, the Eurion constellation, which can barely be seen by the eye. This supposedly will stop copiers and printers from scanning or printing any document that has these.

Bypassing these is trivial.

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[–] 42firehawk@fedinsfw.app 9 points 4 months ago

It's not even a few existing designs... There is an exact pattern called the eurion constellation that all printers block. Then the process for printing each countries currency just involves placing a eurion constellation and you get the protection.

Its a single pattern that is very rigidly defined, to the point that many counterfeit bills that pass inspection shift one mark off by about a millimeter to get it printed.

Granted having worked at a bank when I found out was that the bill didn't have the off color threads as well, but it almost was approved despite getting a close inspection.

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