has anyone seen or heard about this?
They want 3D printer to block gun printing.
Like photocopier block money copying.
Wishful thinking. They can block a print that looks like a “gun”. Can’t block anything that works like a “gun”.
And this is only for Washington.
Just walk across the street to another state and get a printer there.
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The state of Washington has lost its mind.
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Maybe it’ll leave USA and join Canada 
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Hopefully it will take Minnesota with it.
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It’s worse than “looks like a gun”… It’s “looks like a piece of a gun”. Can you imagine trying to programmatically recognize a 3D object that looks like a piece of a gun? Nobody will even try to sell 3D printers in the state anymore.
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Oh that trigger looking thing? BAN!
This looks like a firing pin, BAN!
Don’t deny it. Most reading this already thinking how to design one to test the ban 
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Not only would it have to recognize that something looks like a gun part, it would have to recognize if any part of the print looked like a gun part. Like, how easy would it be to model a blob off the side that can easily be cut off afterward?
And how easy it is to build a printer without all the restriction.
Most 3D printer don’t even have enough brain to use camera. No way they can find a gun in GCode.
They can target slicer but again they can’t control all the open source one.
Anyone with half a brain can make a weapon but lawmaker don’t have enough brain to stop that.
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We got enough ice here, don’t need more.
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So many questions.
Is this functionality supposed to be built into the slicer, or the printer itself?
What if I 3d print a mold, and cast the gun part into that. Is it smart enough to identify that?
What about all of the 3d CNC routers / mills in the world. Is CAM software going to be required to identify gun parts and not generate G-Code?
I made a 1911 shaped bottle opener. Completely non-functional, but probably not legal in Washington.
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It is more than just the 3d printing, they are including all cnc machines in it. That is what is really disturbing is that it could affect all manufacturing.
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I think it was on the news. There is one desktop CNC for gun making.
Gone is the day when I can carry BB guns and not get SWAT.
Bunch of teenager running around with M-16, 1911, AUG, M-1000 and nobody call the cops.
So I guess designing my own NERF guns and printing them is off the table now. 
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If you live in Washington, and they do pass the bill, you won’t be able to 3D print anything unless you already have a printer or go buy one out of state. I’ll be surprised if anyone even tries to sell them unless they figure out how to make the govt responsible for analyzing the model rather than requiring software to analyze the model inside the printer. So every print gets sent to some Govt server before printing…
Do they make a special printer to be sold only in Washington, or do they change the manufacturing requirements of all the printers to match the law? It is kind of like when they build cars did they build one just for California requirements and another version for the rest of the country?