Quote Originally Posted by ajosmer View Post
Well, looks like I got ahead of myself. The ROM chip in the cartridges is a DS28E01, which is an EEPROM with SHA-1 encryption. You can read whatever you want, but you have to know the secret encryption key to change any values. So this may be a dead-end. I might see if I can find anything about the way they're implementing SHA-1 and figure out if there's a why to hand the machine a new chip with encryption disabled and have it still work. My guess is no, but I'll look into it.
You'd be much better off swapping the controllers out for open filament versions. Getting the steppers / extruder hooked up wouldn't be that much trouble and you could use whatever filament you with.