Non-standard Bambu G-code that has undocumented parameters or deviates from Marlin G-code .
Please contribute edits and corrections with a pull request or issue .
More guesses can be found on this thread .
Parameter
Notes
Related flags
none
Part cooling fan
P1
Hotend cooling fan
P2
Remote part cooling/big fan
P3
Chamber fan
support_air_filtration
S
speed
Bambu AMS Toolchange
Parameter
Notes
SXXA
Switch to XX filament. M620 M previous line and four spaces on next lines for conditional execution if AMS exists and material switched.
S255
pull back filament to AMS
.1 E F523 T240
Switch to XX filament
M620.1 - AMS Do Toolchange
Parameter
Notes
E
F523
Filament extrude feedrate
TXX
Extruder temperature XX
Bambu AMS Toolchange
Parameter
Notes
SXXA
Switch to XX filament
M622 conditional after M1002 Gcode between M622`` and M623`` runs if timelapse is on.
Parameter
Values
Notes
J
0 1
conditional
M623 jump location for conditional
Parameter
Values
Notes
AQAAAAAAAAA=
Parameter
Values
Notes
K
M
outer_wall_volumetric_speed/(1.75*1.75/4*3.14)*0.02
M901 end smooth timelapse at safe pos
Parameter
Values
Notes
S
0
P
-1
See thread for `M960``
Parameter
Values
Notes
S
P
Parameter
Values
Notes
S
0 1 2
P
0 1
Parameter
Values
Notes
S
5
P
2
Parameter
Values
Notes
S
4
turn off scanner
Parameter
Values
Notes
S
1
turn on mech mode supression
M991 - notify layer change M991 notifies printer display of layer change.
Parameter
Values
Notes
S
0
P
0
M1002 - judge_last_extrude_cali_success / gcode_claim_action : 0 See thread
Parameter
Values
Notes
set_gcode_claim_speed_level
0
showhide message on screen
T - Select or Report Tool T command tells the printer which filament (tool) is now selected.
Bambu firmware does not do the toolchange with T command. The actual toolchange with AMS uses the M620 command.
Parameter
Notes
255
Switch to empty tool
1000
change to nozzle space
1100
change to scanning space on X1