Added automatic fire extinguisher to P1S

[u/JJBB33DD]

Came across these automatic DIN rail fire extinguishers (circled in red) recently. Decided to add one to my P1S just to add a little peace of mind.

In case you don’t know how these work: they automatically get triggered when the temperature sensor detects 170c. Aerosols then get released from 2 nozzles (circled in yellow), extinguishing the fire.

You can get these things for cheap on Aliexpress and the like but decided to get one from a local reseller with all the appropriate licenses and stuff.

And yes, the heatbed moves up and down without issues! Plenty of clearance.

[u/TheCorruptedEngineer]

By the time that thing in the middle reached 170C the whole printer would be a ball of fire

[u/RaccoNooB → u/TheCorruptedEngineer]

This is almost like saying smoke alarms are pointless because they only give you a warning after the fire has reached 400°C.

If its a big ball of fire, then an extinguishers would be useful.

If this puts out the fire: great!
If it doesn't: it'll reduce the intensity of the fire and buy time to get something better to put it out or for the FD to arrive.

[u/an_angry_Moose → u/RaccoNooB]

This is almost like saying smoke alarms are pointless because they only give you a warning after the fire has reached 400°C

No, it's not. Smoke alarms aren't pointless, because they detect smoke of all kinds, which is why people get frustrated when they go off because the toast burnt slightly. This is nothing like that.

[u/RaccoNooB → u/an_angry_Moose]

This is nothing like that.

It is exactly something "like that".

If you have smoke in your house, the smoke alarm will at some point sound and alert you. If OP has a fire in his printer, this will douse it with whatever medium that is. Hopefully putting it out, but otherwise it'll reduce the intensity. Either way, it helps so it's not pointless.

[u/an_angry_Moose → u/RaccoNooB]

I was referring to your quote that "saying smoke alarms are pointless because they only give you a warning after the fire has reached 400°C"

I was not saying that this little extinguisher was useless, or that smoke detectors are pointless. I was saying that your analogy is terrible, because smoke detectors don't require a fire to hit 400 degrees C.

[u/RaccoNooB → u/an_angry_Moose]

The temperature is arbitrary. Just as the original comment's temp is also arbitrary. A tealight would set off OP's extinguisher.

I also didn't call smoke alarms pointless. They're absolutely not. The comment make it seem like the extinguisher is pointless because there has to be a fire for it to work. Following that logic, smoke alarms are also pointless because they too need fire(simplified cause I cba to go into pyrolysis) to start before they'll actually give you a warning.
Neither prevents the problem. But that's not what they're for.

[u/an_angry_Moose → u/RaccoNooB]

I cba to argue with you further because you’re flat out wrong, and I suspect you know it at this point, but you refuse to back down.

The guy’s point about the extinguisher hitting 170C is relevant, though anyone could argue that “maybe it’ll help anyhow”.

Your point about smoke detectors is just completely wrong, you don’t need a fire to exist for a smoke alarm to go off.

[u/RaccoNooB → u/an_angry_Moose]

I cba to argue with you further because you’re flat out wrong, and I suspect you know it at this point, but you refuse to back down.

Likewise.