Quote Originally Posted by uncle_bob View Post
In terms of crazy ideas: A microswitch that signals when you have run out of filament. Yes, it would need to *go* somewhere to actually be useful. I suppose that even without software support you could use it to fire a buzzer. With the switch on the extruder, you would have to be mighty fast to correct the problem
That's not a crazy idea at all! Marlin now has support for filament detection and if your setup can handle it, it will automatically reload a new spool of filament.