My i3 V2.1 caught fire last night. Smoke and flame were coming out of the power supply box. I opened the box up to see what went wrong and didn't see anything obvious. So I plugged the machine back in turned it on. A flame started immediately from where the heated bed connects to the controller board. I pulled the power cord immediately. After looking over the wiring to heated bed and not finding anything out of the ordinary, I decided to turn it on once again to see why this obvious failure was not being stopped by a circuit inside of the machine. With my fire extinguisher handy, I turned it on once again. The flame built up intensity and smoke was filling the room but the machine never blew a fuse, breaker or any kind of safety device. After about 20 seconds I pulled the power again. This is a very concerning thing to see. Why is this machine letting something get hot enough to physically burn and not tripping any kind of safety device? I have seen electronics failures over the years but never anything that would literally start a fire.