This has now happened twice when trying to print a case for an old Raspberry Pi original model B, downloaded from Thingiverse.
Yesterday, it stuck when about 5mm depth had been printed, otherwise all cleanly up to that point. I found the printer motionless, with the nozzle apparently stuck on a blob at a corner.
I didn’t think I had any option except to abort the print.
Today, it’s done it again on the same corner, but less than a millimetre depth printed. There’s a blob again on the front left corner where the printer stopped.
Printing resumed when I pressed the space bar to wake up the computer, but I’m watching now to see if it sticks again on that blob.
It seems to get over it, and aside from the residual blob printing is looking normal.
I wasn’t watching while it happened, so I don’t know exactly how that arose.
Any ideas on what the cause might be, or how to prevent it in future?
PS. An afterthought. The laptop computer is plugged in on mains power, but I wonder it if just went to sleep and stopped everything?
Will look at power settings and try to stop that, if that might be the cause.
PPS. Well, the Screen was set to turn off after 15 minutes when plugged in, but I’ve now set that to Never. And Sleep was set to Never already.