This is the second test of this kind i have done, the purpose here is to demonstrate what happens during a thermal runaway event where the mosfet can fail in a "on" state

this is why we all say not to leave your printer unattended while printing,  this can happen to any 3d printer

in this video the heater cartridge gets hot enough to melt through the aluminium block  and set fire to pla print below it, the reading on the meter is obviously incorrect, as it seems to have finally failed, after i pull it out of the block it actually had a little bit of molten aluminium on it,


powersupply : 19v
hotend : Aluhotend-V5B
fan: 40mm 12v
mount: pla extruder body


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