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3

Physical Access is worse If you really want to brick a printer, physical access allows to destroy any printer physically. If you really want to mess it up only via a remote command later, you would not just run arbitrary G-code, you'd replace the firmware with one that looks and feels the same but contains neither Thermal Runaway Protection nor a Maxtemp. ...


2

Potential threat? I can imagine that this is a potential threat for printers that are operated in an environment where there are lots of people using the printer where there is access to the SD card (e.g. schools, libraries or maker spaces). It would literally take a file on the SD card to be run the next time the printer boots to change settings through G-...


7

Ethics and justification: If you have physical access to the device you could just... physically damage the device. Running arbitrary G-code is just more complicated Most printer farms have a strict no outside G-code policy for good reason. Because direct physical access to the printer does not provide any security. This is also a problem for CNC Mills and ...


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