Options for loading settings/filaments, selecting objects, output locations, logging, and 3MF metadata. See CLI Mode for general flag syntax.

• Loading Settings & Filaments
• Object Selection
• Output & Logging
• Arrange Behavior
• Metadata
• Print Behavior

These load the same per-tab JSON files produced by each settings tab's Save/Export action — see Export Preset Bundle for how those files are created in the GUI.

Flag	Input	Description	Notes
--load-settings	"setting1.json;setting2.json"	Load process/machine settings from the given file(s), semicolon-separated.
--load-filaments	"filament1.json;filament2.json;..."	Load filament settings from the given file(s), semicolon-separated.
--uptodate-settings	"setting1.json;setting2.json"	Process/machine settings to load when used together with --uptodate.
--uptodate-filaments	"filament1.json;filament2.json;..."	Filament settings to load when used together with --uptodate.
--downward-check	boolean	Check whether the current machine is downward-compatible with the machines listed in --downward-settings.
--downward-settings	"machine1.json;machine2.json;..."	Machine settings list to check against when --downward-check is enabled.
--load-custom-gcodes	custom_gcode_toolchange.json	Load a custom G-code toolchange definition from a JSON file. Related concept: Machine G-code.

Flag	Input	Description	Notes
--skip-objects	"3,5,10,77"	Skip the given object indices when printing.
--clone-objects	"1,3,1,10"	Clone count for each object in the load list.	Cannot be combined with --assemble.
--load-assemble-list	assemble_list.json	Load a full assemble object list (plates, objects, and their parameters) from a config file, instead of loading models directly.	Cannot be combined with positional input model files or with any transform flag.
--load-filament-ids	"1,2,3,1"	Filament ID to assign to each loaded object, one entry per input file.	List length must match the number of input files.

Flag	Input	Description	Notes
--datadir	dir	Load and store settings at the given directory, instead of the default user config location. Useful for maintaining separate profile sets. Related concept: Portable User Configuration.
--outputdir	dir	Output directory for exported files.	Created recursively if it doesn't exist; the process exits with an error if creation fails.
--export-statistics	boolean	Write the statistics of each sliced plate as JSON, as plate_N.statistics.json next to its G-code in the output directory and inside the 3MF of --export-3mf: print time, filament and feature totals, and the same per layer and per object.	Same files as the Export Statistics preference.
--debug	level (int, 0-5)	Debug logging level: 0 fatal, 1 error, 2 warning, 3 info, 4 debug, 5 trace.	Default: 1.
--logfile	file	Redirect debug logging to a file instead of stderr.

These correspond to options in the GUI's Auto Arrange panel.

Flag	Input	Description	Notes
--allow-multicolor-oneplate	boolean	Allow multiple materials/colors to be arranged onto the same plate. See "Allow multiple materials on same plate" in Auto Arrange.	Default: on.
--allow-rotations	boolean	Allow arrange to rotate objects to fit. See "Auto rotate for arrangement" in Auto Arrange.	Default: on.
--align-to-y-axis	boolean	Turn each object so its long side runs along the Y axis before arranging. See "Align to Y axis" in Auto Arrange.	Default: on for i3 printers, off for the others.
--avoid-extrusion-cali-region	boolean	Avoid the extrusion calibration region on the plate when arranging.	Default: off.

Flag	Input	Description	Notes
--makerlab-name	name	MakerLab name embedded when generating the 3MF.
--makerlab-version	version	MakerLab version embedded when generating the 3MF.
--metadata-name	"name1;name2;..."	Custom metadata field name(s) to add to the 3MF, semicolon-separated.	Paired positionally with --metadata-value.
--metadata-value	"value1;value2;..."	Custom metadata field value(s) to add to the 3MF, semicolon-separated.	Paired positionally with --metadata-name.

Flag	Input	Description	Notes
--enable-timelapse	boolean	Treat this slicing run as using timelapse. See Timelapse.	Default: off.
--skip-modified-gcodes	boolean	Skip modified G-code (from printer/filament presets) embedded in a loaded 3MF.	Default: off.
--allow-newer-file	boolean	Allow slicing a 3MF that was saved by a newer OrcaSlicer version than the one running.	Default: off.
--allow-mix-temp	boolean	Allow filaments with high/low temperature requirements to be printed together.	Internal use; default: off.