Applicability is in the eye of the beholder… of bureaucracy.

It is not really enforceable what people grow in their nook with led lights, or what they produce with metal lathes and metalworking tools, or what they mix up with common chemicals, and yet!

With EURion, printers/scanners that are capable of somewhat convincing replica go into the “definitely need to do this thing” money bracket I guess.

Printer instructions are also usually quite convoluted (don’t event know if anybody really knows the actual format), but definitely it’s not the actual document being sent to a printer (except some last decade printers perhaps), just the actual dithered inkjet patterns, though I am heavily guesstimating. And yet, from inkjet patterns, the printer knows to crash, presumably, though I dont know, the knowledge of currency steganography seems spotty…

There is a semi-infinite amount of processing that can be done on the slicing machine, so detecting gun-like item is wildly possible. Making your own slicer is the same as making your own photoshop (or hacking it). I definitely don’t see 3d printers having enough horses to figure out a non-watermarked-model produced geocode to have gunlike things. But! We forget! With legislation, everything is possible. Probably will require any decent (especially things like metal) 3d printer to have an ISIC specifically programmed to rebuild a model from geocode and do analysis :D (Honestly, completely easy with current technology, MNIST 99.99% accuracy fits into 10k transistors or so)

But I guess this assumes same amount of know-how and confident skills that they had in 90s. It will probably all crash and burn and make all honest customers very unhappy.

Additional note: Since 2003, image editors such as Adobe Photoshop CS or PaintShop Pro 8 refuse to print banknotes. According to Wired.com, the banknote detection code in these applications, called the Counterfeit Deterrence System (CDS), was designed by the Central Bank Counterfeit Deterrence Group and supplied to companies such as Adobe as a binary module.[13]

Everybody with Photoshop / Paintshop pro literally has an unexplained (likely uninvestigated) government binary blob that might be a backdoor :D

Ever heard of the EURion constellation?

This is the same, just an additional dimension.

“Markus Kuhn, who uncovered the pattern on the 10-euro banknote in early 2002 while experimenting with a Xerox colour photocopier that refused to reproduce banknotes.[2] The pattern has never been mentioned officially; Kuhn named it the EURion constellation as it resembled the astronomical Orion constellation, and EUR is the ISO 4217 designation of the euro currency.[3]”

It would seem governments always poke into corporations for debatable “safety”. Even if they don’t say it.

You can of course build your own printer from stepper motors and belts. Good luck, see you in a year. Also 3d printing in general has improved lightyears, so it’s becoming a decent-sized corpo thing => tools becoming scrutinized by government vogons.

Oh sorry… I guess I was projecting…

I mean… That’s their job… But yes!