Recommended
Thermal Runaway Test #2
Why people recommend it
Drives a 3D printer heater nonstop until the aluminium heater block melts, cited to show why firmware thermal runaway protection must be enabled.
In their words
Let's look at a Thermal Runaway Test (#2) performed by one Chris Bate.
user77232 on 3dprinting.stackexchange.com, Mar 2019. CC BY-SA.
Note that Aluminium (which your heater block is made of) melts at 660 °C, so your most worrying item should be the block, which will melt, drip and melt anything below if this goes on for a couple seconds like seen here
Trish on 3dprinting.stackexchange.com, Nov 2019. CC BY-SA.
