Thanks, that makes sense. Was thinking of something like RB-231X2. Maybe a little pcb with them mounted in a radial planer array in series, to detect failure in different directions.

Is is possible to mount tilt sensor in the bed frame, such that, if a Z axis motor failed, a tilted bed could be detected/ triggered and send a shut/ emergency stop all signal to the processing job? Wondering... If it is possible to wire up such a sensor into my duet 2 wifi and perform an emergency stop.

Thanks.