Me and a buddy, victor teisller, hacked the most popular 3D printer a few years ago (flashforge) to turn it into a major fire hazard through reverse engineering the firmware update remotely. Changed the max temp of the extruder to the temp of the Sun lol. These things are a fascinating security target because they're an easy place to turn abstract digital hacking into physical repersussions that can literally murder.

https://www.theregister.com/security/2020/04/13/how-to-make-...