> Some people are okay with using OrcaSlicer and printing through Bambu's cloud. It's convenient if you're on the road and want to start a print on your printer at home

Do such people really exist? Are there actually people who are comfortable blindly starting a robot in their home, with a part that heats to 150 C, and then hope that everything will work out and when they get home the part will be waiting for them, instead of the firefighters?

Yes, very common use case. I print things remotely from home on the printers at the office all the time, as do many of my colleagues. Probably not a common use case for people with at-home printers, but if you use them professionally people do it all the time. That said, you probably don't want bambu's cloud if you're working on protected IP...

I would have never done this 10 years ago with the garbage printers that were pieced together like science projects rather than finished products.

But a modern enclosed bambu printer is a much better engineered device. Bambu is mature enough as a company that they've issued formal recalls for device issues before. This would never happen with the aliexpress specials that used to dominate the market.

Bambu printers (and other reputable modern printers) are being run unattended at scale all the time without issue.

Closer to 200C. But the gantry constraints movement, the 200C nozzle can only really touch its holder, the print bed, the filament and some metal or silicon cleaning surfaces. None of those are flamable at those temps.

Maybe if it knocks itself down to the ground? But I worry much more about faulty wiring or stuff like that. And that's more a function of the brand and model

That isn’t a significantly different risk from how you are required to use a FDM printer, regardless of circumstance.

Prints regularly take ten+ hours to complete. No one is vigilantly guarding their printer during this time. Fire spreads so quickly in a house that a smoke alarm is often just a signal to get out, you don’t necessarily have the time to grab a fire extinguisher and put it out.

And how big is the risk, really? The materials that you use do not ignite so close to their melting point.

3D printers aren't the fire hazards of yore. They're quite reliable, fused, with multiple interlocks for various conditions (mainly around heating not matching expected rate) that will kill power.

The main potential problem these days (in my view) is whether a print finishes without crashing or delaminating from the print plate, which also has workarounds... but that's only potential printer damage, not a fire.

Pretty common for us to leave the printer unattended. The prints are 8 h or more at times and I’m definitely not watching the device. During that time I might be asleep or out of the house. I’ve never actually started a print from outside but that’s not from a safety standpoint just I’ve never needed to.

At worst the sprinklers above it will wash it but that’s in a catastrophic instance.

My P1S has a camera built into it. If the print begins to fail, I can stop the printer and turn off the heat immediately before anything spirals. Very easy and convenient to remote control from my phone.

Does your house have an HVAC system? Water heater?

These people exist.

I do this occasionally, but am fine with using Bambu's integrated Slicer and Remote Control software. It works well enough.

I don't know, do people exist who will run 220 V wiring through their house, even though a few mm of plastic separate the two wires from conflagration? Who use devices running on thousands of volts, with mere inches separating their hands from death?

Perhaps one or two.

That's what homeowner's insurance is for. I often run my printer when I'm not home.

I don't run prints when I'm not home. I have a fire suppression system in my H2S, and I had one with my A1. You only need it to fuck up once, and your house is toast.

I think this sort of person definitely exists

There are people who are simply careless

There are people who think of the 3d printer as a toy, not as a piece of industrial (or semi industrial) equipment

There are people who are arrogant, who think they have figured out and solved anything that could possibly go wrong so they have made it safe to do

There are people who kind of think they are invincible and are just convinced that bad stuff won't happen to them

Idk. It's not a stretch at all for me to imagine this sort of person, based on the people I've met in the past. I mean people remove safety guards from power saws that are designed to protect you from losing fingers, so...