I agree, but I note that the 3d printing people are making progress in making really cheap injection molds. I wouldn't count on the difference in cost remaining prohibitive enough that only reasonably serious people can afford it for much longer.

Edit: And I hope the lesson that the safety critical people take away from this is "actual engineering work is needed for airplane components" and not "3d printed parts are scary" because sooner or later they'll run into the same issue with parts made in other ways

> 3D printing (especially using filament) allows idiots to enter entirely new areas of endeavor.

That's true for any tool.

And when someone makes a new affordable tool that opens up making new types of things…. What happens?

Stuff gets made.

Just imagine, chainsaws, lathes, welders and now <gasp> 3D printers. What will they come up with next to give these irresponsible dilettantes a way to create their own objects... what we need here is some proper gatekeeping. Maybe a certificate or two, and some very expensive software that proves that you're a company that is serious.

And while we're at it we should forbid home brew software too.

Sounds like you’re the one who isn’t getting the point.

Personally, I think 3D printed drop in auto sears are pretty awesome.

But it changes the game, and the laws don’t know what to do on that front.

I also bet I own more chainsaws than you do.