If you were to bring a letter opener to school and sell it to your friends you would still get a nice meeting with the police. The existence of the journal article is more related to the fact that a kid was stabbed to death in school last week, than to the fact that a dumb kid did something stupid and marginally related to his 3d printer.

It’s not because they are 3d printed. He was distributing them at school! That is the problem.

If he were to file down toothbrushes and do the same he would still be arrested and his files confiscated.

Wow, that is absolutely mind-blowing. I never expected it to work with such complex designs! Mind sharing some tips or examples of how you accomplished this? I’m really curious about the notes around the ring