I want to print some spare parts to have on-hand in case of failures.
I imagine the two herringbone gears are auto-includes on the list of must-print parts. Beyond those, what are typical failure modes for the mini that I should worry about or that people have run into?
Idler Arm, Small extruder gear, eventually the Large extruder gear. A spare extruder body isn’t a bad idea either, but those are the most common failure points in order of likelihood of failure.