Firmware 3.0.10 Major Issue with Print Stop Feature
I discovered a nasty problem with the print stop feature on my MK2S which was shipped with 3.0.10. When stopping a print before it starts, the extruder/hotend will continue to lower into the bed and will not stop until you forcefully power off the printer causing a nasty indentation from the hotend.
This is easy to recreate, start a print then once the hotend gets within 5C of target temp, simply cancel the print. The LCD will confirm "print aborted" however the Z axis steppers do not stop and will drive the hotend into the print bed. It's best to test this with your Z axis well above the print bed so you have time to power off.
Please note the print stop feature appears to work fine if you cancel well before the hotend gets to target temp. I created a short video of this problem.
Re: Firmware 3.0.10 Major Issue with Print Stop Feature
In the latest RC 3.0.11 it is mentioned that the stop print is disabled during mesh bed leveling. Maybe it something to do with this also.
https://github.com/prusa3d/Prusa-Firmware/releases
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Gert