Overview

Slic3r supports a variety of placeholders from settings and some internal values for use in Custom GCode.

All situations

Any configuration setting.
- For easy reference, export your current print configuration to an .ini file and open it with a text editor.
[input_filename] - Input filename
[input_filename_base] - Input filename with extension stripped
- object.stl -> object
[timestamp] - Current date/time
- Each component from the timestamp is available: [year], [month], [day], [hour], [minute], [second]
[scale]
[scale_0], [scale_1], ... for specific scales
[print_preset] - name of the current print preset. Only available when using plater GUI.
[filament_preset] - name of the current filament preset. Only available when using plater GUI.
[printer_preset] - name of the current printer preset. Only available when using plater GUI.
[layer_z] - Z height of the active layer.
- Automatically set by Slic3r.
[layer_num] - Integer number of the active layer.
- Automatically set by Slic3r.
[current_extruder] - Currently selected extruder.
- Automatically set by Slic3r.

Note: Multi-value options can be called with indices, like [nozzle_diameter_1].

The following items are available only for Filament Start/End GCode.

[filament_extruder_id]
- Value of this setting is the current extruder this filament profile is loaded.
- Automatically set by Slic3r.

[current_retraction] - Amount retracted for the current extruder.
- Automatically set by Slic3r.

The following items are available only during Toolchange Custom GCode.