M500 - Save Settings in EEPROM
M500
Description
Saves all current settings in EEPROM. Makes them persistent after printer reboot or shutdown.
Requires EEPROM_SETTINGS enabled.
Arguments
Examples
M500; Save settings
M501 - Load Settings from EEPROM
M501
Description
Loads all previously saved settings from EEPROM and immediately applies them. This can be also used as UNDO of the settings changes you made.
No need to save them as they are taken from EEPROM.
Requires EEPROM_SETTINGS enabled.
Flashing a new version of Marlin may reset the stored settings.
It it not recommended to execute it during print process. It can can only be guaranteed to work properly before and after printing.
Arguments
Examples
M501; Loads settings
M502 - Factory Reset
M502
Description
Restores all settings as they were in Configurations.h.
Does not rely on EEPROM_SETTINGS
To make those changes persist after reboot or printer shut down you have to save them to EEPROM with M500; command.
Arguments
Examples
M502 ; Reset M500 ; Save
M503 - Print Settings Currently in Memory
M503 S<verbose>
Description
Prints out all current print settings as set in memory. Those settings might differ from EEPROM contents if they were changed since the last load / save.
Very useful when tweaking printer settings as you can quickly print out to console all the settings made using LCD after each test print. When you are done you can take those values and put back to configuration.h or use in auto0.g
Does not require EEPROM_SETTINGS
Relies on DISABLE_M503
Arguments
| Argument | Required | Description | Default value |
|---|---|---|---|
S<verbose> | No | Show detailed output | 1 |
Examples
M503; Print detailed settings M503 S0; Print shorted gcode settings
Sample output of M503:
G21 ; Units in mm M149 C ; Units in Celsius Filament settings: Disabled M200 D1.75 M200 D0 Steps per unit: M92 X100.00 Y100.00 Z398.70 E100.00 Maximum feedrates (units/s): M203 X400.00 Y400.00 Z8.00 E50.00 Maximum Acceleration (units/s2): M201 X1000 Y1000 Z100 E10000 Acceleration (units/s2): PR T M204 P400.00 R1000.00 T1000.00 Advanced: S T B X Z E M205 S0.00 T0.00 B20000 X10.00 Y10.00 Z0.30 E5.00 Home offset: M206 X0.00 Y0.00 Z0.00 Auto Bed Leveling: M420 S1 Z0.00 Material heatup parameters: M145 S0 H195 B55 F0 M145 S1 H205 B60 F0 PID settings: M301 P52.25 I5.60 D122.00 Z-Probe Offset (mm): M851 Z-2.41