Being cold should not be a firmware crash / reboot
Per the title really - my CoreONE lives in a shed and it gets cold, which means this evening I tried to start a print and rather than warn me about it the printer just reboots and then sits there with the Red Screen Of Doom beeping until someone comes to calm it down.
I understand using "out of bounds" values to detect sensor failure but this is a tad aggressive, and a full-on reboot means it drops off the network and I can't then diagnose the issue from my nice warm office.
A slightly less dramatic reaction - a warning, a refusal to print until the "fault" is cleared / the unit warmed up - would be perfectly acceptable. As it is I just ran the heatbed at 25C for a few minutes to bring the unit up to a more acceptable level and it's now happily printing.
Generally Prusa Printers refuse to start when the ambient temperature is so low that the print is likely to warp.
Cheerio,
RE: Being cold should not be a firmware crash / reboot
It's a chamber with a heater, it can control how warm the print area is - I'm saying that being a bit chilly shouldn't be a "fall over and die with big red error screen" situation.
Generally it's a mintemp error - and has been since some stage in the Mk2 development cycle. I don't know what your red screen was reporting.
If it's too cold for you at what temperature is your shed? I presume you have read page 6 of your Core One 3D Printing Handbook where it clearly says: "Operating Temperature Range: 18 °C - 38 °C"
Cheerio,