Krotos3D

Custom Marlin firmware for Krotos3d printer

New Gcode

M777 - HW bed leveling

New custom gcode to use the 4-motor Z axis for bed leveling

Remarkable commands

G28 - Auto Home
G29 - Bed Leveling
M80 - Power On PSU
M81 - Power Off PSU
M114 - Get Current Position
M420 - Bed Leveling State
M500 - Save Settings
M503 - Report Settings
M851 - XYZ Probe Offset

Tips

M420 S1 - before printing enables bed leveling
M851 Z-X.XX - sets nozzle diff

Configure nozzle height

M777 - HW bed leveling
G29 - Bed leveling
G28 Z - Home z at center
G91 - Relative positioning
G1 Z-0.1 - Move up the bed until it touches the nozzle
M114 - Get the Z height X.XX
M851 Z-X.XX - Set the nozzle height to X.XX

Updated files

1. M777.cpp
   • Added custom gcode
2. pins_RAMPS.h
   • Added z axis motors pins
3. gcode.h
   • Added M777
4. gcode.cpp
   • Added 777
5. configuration.h
   • Updated e driver to drv8825
   • Z_MIN_ENDSTOP_INVERTING to true
   • Z_MIN_PROBE_ENDSTOP_INVERTING to true
   • DEFAULT_AXIS_STEPS_PER_UNIT to { 400, 400, 400, 98 }
   • DEFAULT_MAX_ACCELERATION to { 100, 50, 25, 10000 }
   • Update ACCELERATION
   • define USE_PROBE_FOR_Z_HOMING
   • define FIX_MOUNTED_PROBE