I’ve been idly searching for this level of info for a while. Takerbot’s ‘smart extruder’.
And while nothing here justifies the hot-end being a ‘consumable part’, the device actually IS somewhat ‘smart’.
Hall effect based Z probe sensor… filament ‘ran out’ sensor.(microswitch) filament jam sensor(encoder wheel).
And all the parts of the hotend that can go wrong in one unit. It’s a shame the end result and corporate mess behind it sucks. On paper it actually looks not bad.
I have been looking for a way to ‘jam’ sensor for my RepRap based on this idea but haven’t found any printable parts yet.