People are elected to office, and they appoint additional people to form our government. You can shake your fist at the government, or you can accept that voters have the ultimate responsibility in the government we have.
Democracy doesn’t give you the best possible government, it only gives you the government you deserve.
cracks knuckles
“An individual may generally make a firearm for personal use. However, individuals engaged in the business of manufacturing firearms for sale or distribution must be licensed by ATF. Additionally, there are certain restrictions on the making of firearms subject to the National Firearms Act.” - From the ATF’s FAQs
As I understand the laws and regulations, you are permitted to make your own firearms, as long as:
it is for personal use (i.e. you cannot sell it or do business making them- you need a manufacturer’s FFL for that)
it must have a serial number (unless it was manufactured before 1968)
It must not fall afoul of the National Firearms Act of 1934 (NFA) (i.e., you can’t make your own fully automatic firearm, or short barreled shotgun, or silencer, or explosive devices- you need to have a (different!) manufacturer’s FFL and follow all the usual rules for those items)
As far as gifting one, or passing it along to one’s descendants, that’s… tricky, and complicated.
I am not a lawyer, and you should consult one if you have serious intent instead of following advice from some yahoo on the interwebbertubes LIKE ME.
The problem is that the slicer software then needs to know what shape (or set of shapes) constitutes a firearm, and then it needs to be able to either error out or refuse to slice the job. that’s a very complicated task. (it’s worse than an image editing program being able to detect that some yahoo scanned in an actual dollar bill and throwing an anti-counterfeiting message on the screen.)