For both methods, if your firmware has AUTO_REPORT_TEMPERATURES enabled, set the temperature reporting period to longer than it takes for your levelling to complete (in seconds) to prevent pollution of the output by using M155.
See G29 - Bed Leveling (Bilinear)
M140 S60 ; starting by heating the bed for nominal mesh accuracy
M117 Homing all axes ; send message to printer display
G28 ; home all axes
M420 S0 ; Turning off bed leveling while probing, if firmware is set
; to restore after G28
M117 Heating the bed ; send message to printer display
M190 S60 ; waiting until the bed is fully warmed up
M300 S1000 P500 ; chirp to indicate bed mesh levels is initializing
M117 Creating the bed mesh levels ; send message to printer display
M155 S30 ; reduce temperature reporting rate to reduce output pollution
@BEDLEVELVISUALIZER ; tell the plugin to watch for reported mesh
G29 T ; run bilinear probing
M155 S3 ; reset temperature reporting
M140 S0 ; cooling down the bed
M500 ; store mesh in EEPROM
M300 S440 P200 ; make calibration completed tones
M300 S660 P250
M300 S880 P300
M117 Bed mesh levels completed ; send message to printer display
See G29 - Bed Leveling (Unified)
G28 ; home all axes
M420 S0 ; Turning off bed leveling while probing, if firmware is set
; to restore after G28
M155 S30 ; reduce temperature reporting rate to reduce output pollution
M190 S65 ; (optional) wait for the bed to get up to temperature
G29 P1 ; automatically populate mesh with all reachable points
G29 P3 ; infer the rest of the mesh values
G29 P3 ; infer the rest of the mesh values again
@BEDLEVELVISUALIZER ; tell the plugin to watch for reported mesh
M420 S1 V ; enabled leveling and report the new mesh
G29 S0 ; Save UBL mesh points to slot 0 (EEPROM).
G29 F 10.0 ; Set Fade Height for correction at 10.0 mm.
G29 A ; Activate the UBL System.
M500 ; save the current setup to EEPROM
M155 S3 ; reset temperature reporting
M140 S0 ; cooling down the bed
G80 ; run mesh bed leveling routine.
@BEDLEVELVISUALIZER ; instruct plugin to start recording responses from printer.
G81 ; report mesh bed leveling status.
Note the i3 MK3S requires the Y-axis to be flipped.
This may or may not work for you on 5.x firmware. Some users have reported issues with this gcode. There is some updated gcode below which is reported to be working on 5.1.2 firmware.
M104 S170 ; set extruder temp for bed leveling
M140 S60 ; set bed temp
M109 R170 ; wait for bed leveling temp
M190 S60 ; wait for bed temp
G28 ; home all without mesh bed level
@BEDLEVELVISUALIZER ; instruct plugin to start recording responses from printer.
G29 ; mesh bed leveling
M104 S0 ; cool down head
M140 S0 ; cooling down the bed
;
; MBL Prep
;
G0 X0 Y-4 Z15 F4800 ; move away from printbed
M140 S60 ; set bed temp
M104 S170 ; set extruder temp for bed leveling
M109 R170 ; wait for temp
M84 E ; turn off E motor
M302 S160 ; lower cold extrusion limit to 160C
G1 E-2 F2400 ; retraction
M84 E ; turn off E motor
G28 ; home all without mesh bed level
M106 S100
G0 Z40 F10000
M190 S60 ; wait for bed temp
M107
;
; MBL
;
M84 E ; turn off E motor
G29 P1 ; invalidate mbl & probe print area
G29 P3.2 ; interpolate mbl probes
G29 P3.13 ; extrapolate mbl outside probe area
;
; MBL Update Mesh
;
@ BEDLEVELVISUALIZER
G29 T ; print bed topography report
;
; Cleanup
;
M104 S0 ; turn off temperature
M140 S0 ; turn off heatbed
M107 ; turn off fan
G0 X0 Y-4 Z15 F4800 ; move away from printbed
This updated gcode should solve any issues on 5.1.2 firmware
M104 S170 ; set extruder temp for bed leveling
M140 S60 ; set bed temp
M109 R170 ; wait for bed leveling temp
M190 S60 ; wait for bed temp
G28 ; home all without mesh bed level
M155 S30
G29
@BEDLEVELVISUALIZER ; instruct plugin to start recording responses from printer.
G29 T ; mesh bed leveling
M155 S3
M104 S0 ; cool down head
M140 S0 ; cooling down the bed
M104 T1 S0
M104 T2 S0
M104 T3 S0
M104 T4 S0
M140 S60 ; set bed temp
M109 T0 S175 ; wait for temp
; Home XY
G28 XY
; try picking tools used in print
G1 F24000
; select tool that will be used to home & MBL
T0 S1 L0 D0
; home Z with MBL tool
M84 E ; turn off E motor
G28 Z
G0 Z5 ; add Z clearance
M190 S60 ; wait for bed temp
G29 G ; absorb heat
; move to the nozzle cleanup area
G1 X32.0999 Y-6.90006 Z5 F24000
M302 S160 ; lower cold extrusion limit to 160C
G1 E-2 F2400 ; retraction for nozzle cleanup
; nozzle cleanup
M84 E ; turn off E motor
G29 P9 X260 Y-6.90006 W32 H7
G0 Z5 F480 ; move away in Z
M107 ; turn off the fan
; MBL
M84 E ; turn off E motor
G29 P1 ; invalidate mbl & probe print area
G29 P1 X30 Y0 W50 H20 C ; probe near purge place
G29 P3.2 ; interpolate mbl probes
G29 P3.13 ; extrapolate mbl outside probe area
G29 A ; activate mbl
@BEDLEVELVISUALIZER
G29 T
G1 Z10 F720 ; move away in Z
G1 F24000
P0 S1 L1 D0; park the tool
; set extruder temp
M104 T0 S0
M140 S0
Use the following command for Klipper (per #92):
@BEDLEVELVISUALIZER ; instruct plugin to start recording responses from printer.
BED_MESH_OUTPUT ; report the bed leveling mesh points.
M104 S200 ; set extruder temp for bed leveling
M140 S60 ; set bed temp
M109 R200 ; wait for bed leveling temp
M190 S60 ; wait for bed temp
G28 ; home all without mesh bed level
@BEDLEVELVISUALIZER ; instruct plugin to start recording responses from printer.
G29 ; mesh bed leveling
M104 S0 ; turn off extruder
M140 S0 ; turn off bed
G1 X0 Y0 F1000 ;
M84 ; disable motors
M106 S0 ; turn off fan