Yuri D'Elia

> IF hot end and bed are equal, then heat for 20 seconds and check sensor values again. To handle all cases discussed here you should start with "IF hot...

How did it crash? By self-restarting showing a "FIRMWARE CRASH!"?

These behaviors can be quite different internally, so it would be helpful to be extra-precise if you saw this happening. A printer crash should self-restart and show a "FIRMWARE CRASH!"...

It helps tremendously if you write down everything you do. After flashing the FW, the printer resets. From this point, make a note of every single action (push encoder ->...

@ldboehm the same as above applies. Please attach the gcode of the print, and if you can also take a video of how the printer crashes. If there's a "FIRMWARE...

@ldboehm that's completely different from what I was expecting. Can you attach the gcode of the print that shows this?

I did try this early on (the discussion is still in the issue) using the built-in ramming sequence in mmu.cpp, but it didn't work as nicely. I still frequently got...

Also, the unload jams on the MK3 (w/o MMU) are often caused by a complete cooldown of the hotend. An unload which was performed during a filament change and/or just...

How does the tip look in such cases?

Indeed, that's the classic result of a normal unload for me. With this patch, we extrude the blob. The result is a tip which is completely flush though-out. With PETG/PC...