[ENHANCEMENT] Increase maximum steps/mm per extruder about prusa-firmware-buddy HOT 3 OPEN

Better to be answered by @DRracer

from prusa-firmware-buddy.

Update: I set the correct value at G-code level on M92 after which I encountered the problem in unloading the filament and I added 3mm to the displacements of the filament in the G-code end.
Having solved this I found a new problem; when I ask MMU3 to load the filament into the nozzle he takes it to the filament sensor then the extruder motor follows the value set by the firmware (1000) and fails to engage correctly.
It is absolutely necessary to have the possibility to insert a step/mm value from the firmware for the extruder motor greater than 1000 and also to set the PTFE tube length and any distance between the PTFE tube and the knurled wheel.
Everything else works correctly, providing dimensionally correct prints.

from prusa-firmware-buddy.

@danopernis @DRracer good morning, can you confirm that the steps/mm value for the extruder has a maximum value of 1000 and this value is NOT (currently) modifiable even by sending the command M92 Exxxx (where xxxx is a value greater than 1000) and then M500 for save the setting?

When I tried to enter the commands described above and then doing M503 it returns the value I entered (e.g. 1330) but then if I send the M501 command from the EEPROM it reads 1000.

Therefore the value is NOT saved in memory.

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