It’s so ridiculously easy to assemble a 3d printer from individually sourced parts, and find some open source firmware to run it. How is this going to stop anyone who’s dishonest and slightly motivated?
What’s next is thinking about guns is a thought crime.
There’s a cynical part of me that sees this as having nothing to do with guns. Technology used to empower people. You can do anything with a computer running Linux, you used to be able to go anywhere on the web and do anything you like. There’s wasn’t a curated experience, a whitelist of apps. This is a bad thing for people who want to control and manipulate. They want us to mindlessly use our closed of devices that only show us what they want us to see and do what they approve. 3d printers can’t be allowed in such a world.