
Earlier this week, YouTuber and hardware hacker Emily The Engineer unveiled how she successfully converted a 3D printer into a fully functioning tattoo machine, which was then subsequently tested on her friend Dan, who reportedly came up with the whole idea, to begin with [h/t Hackaday]. Amusingly, the full video documenting the process includes Dan calling relevant family and friends to get opinions across the board, including his girlfriend expressing disapproval but slightly acquiescing when told it may end up being safe.
So, is it safe? Probably, but Emily still firmly recommends against viewers following in her footsteps in the full video. Even executing the tattoo required extensive hardware modding the 3D printer and rewriting its firmware, making it (mostly) only operate on a single axis and be able to use a tattoo gun properly.