I set my Mendelmax on fire today...
Hint to the wise, do not be printing on one, printer, forget the power switch is live on the Mendelmax... cut wires to fan so you can add two more to keep your POS Printroboard from overheating and immediately have the wire you cut erupt in flames.
Next step is to not run out of the room looking for a fire extinguisher that you wife moved while cleaning the kitchen... that would be the time you would want to ... I don't know turn the power off to the PS?
So while Mendelmax is on fire, I am in the other room looking for a fire extinguisher (power supply still on), the fire alarm goes off. Wife sticks head out of door asking what the hell is going on (Third Shifter).. I say popcorn again.. she goes back to bed.
Get back in office, no fire extinguisher, turn power off. Patt out the burnt wires. After 1 hour of trouble shooting I lost 2 RP parts, pretty much all my wires, and that's about it.... WIN! (ish)
This is the Second RepRap I have ever set on fire :)