Docs
Pages

Settings / Reference

Filament: Extrusion

13 settings. Keys are OrcaSlicer's own names. See the index for the other groups and the guide for how to read and apply them.

adaptive_pressure_advance

Adaptive pressure advance

  • Type: list of booleans, one per extruder
  • Default: [false]
  • Used only when: Enable pressure advance (enable_pressure_advance) is on
  • Changing it redoes: G-code only
  • PrintPilot class: guarded (always shown in the diff; approval needed outside the filament range; refused past printer limits)

adaptive_pressure_advance_bridges

Adaptive pressure advance bridges

  • Type: list of numbers, one per extruder
  • Default: [0]
  • Recommended range: no minimum to 2
  • Used only when: Enable pressure advance (enable_pressure_advance) is on
  • Changing it redoes: G-code only
  • PrintPilot class: read (not in the catalog: never written)

adaptive_pressure_advance_model

Adaptive pressure advance model

  • Type: list of strings, one per extruder
  • Default: ["0,0,0\n0,0,0"]
  • Used only when: Enable pressure advance (enable_pressure_advance) is on
  • Changing it redoes: G-code only
  • PrintPilot class: read (not in the catalog: never written)

adaptive_pressure_advance_overhangs

Adaptive pressure advance overhangs

  • Type: list of booleans, one per extruder
  • Default: [false]
  • Used only when: Enable pressure advance (enable_pressure_advance) is on
  • Changing it redoes: G-code only
  • PrintPilot class: read (not in the catalog: never written)

enable_pressure_advance

Enable pressure advance

  • Type: list of booleans, one per extruder
  • Default: [false]
  • Changing it redoes: G-code only
  • PrintPilot class: guarded (always shown in the diff; approval needed outside the filament range; refused past printer limits)

filament_adaptive_volumetric_speed

Filament adaptive volumetric speed

  • Type: list of booleans, one per extruder
  • Default: [false]
  • Nullable: A profile can store nil to take the value from another profile; the key is then left out.
  • Changing it redoes: G-code only
  • PrintPilot class: read (not in the catalog: never written)

filament_flow_ratio

Flow ratio

  • Type: list of numbers, one per extruder
  • Default: [1]
  • Recommended range: 0.8 to 1.2
  • Orca limits: 0 to 2
  • Nullable: A profile can store nil to take the value from another profile; the key is then left out.
  • Changing it redoes: G-code only
  • PrintPilot class: guarded (always shown in the diff; approval needed outside the filament range; refused past printer limits)
  • Effect: higher: More flow fills gaps and can over-extrude. lower: Less flow prevents blobs and can under-extrude

filament_max_volumetric_speed

Max volumetric speed

  • Type: list of numbers, one per extruder
  • Unit: mm3/s
  • Default: [2]
  • Recommended range: 0.5 to 80
  • Orca limits: 0 to none
  • Changing it redoes: G-code only
  • PrintPilot class: guarded (always shown in the diff; approval needed outside the filament range; refused past printer limits)
  • Effect: higher: A higher limit allows faster printing while the hotend keeps up. lower: A lower limit slows fast features to protect extrusion

filament_shrink

Shrinkage compensation XY

  • Type: list of percents, one per extruder
  • Unit: %
  • Default: [100]
  • Recommended range: 95 to 105
  • Orca limits: 50 to 150
  • Changing it redoes: contours
  • PrintPilot class: guarded (always shown in the diff; approval needed outside the filament range; refused past printer limits)

filament_shrinkage_compensation_z

Filament shrinkage compensation z

  • Type: list of percents, one per extruder
  • Unit: %
  • Default: [100]
  • Recommended range: 50 to 150
  • Changing it redoes: contours
  • PrintPilot class: read (not in the catalog: never written)

pellet_flow_coefficient

Pellet flow coefficient

  • Type: list of numbers, one per extruder
  • Default: [0.4157]
  • Recommended range: 0 to no maximum
  • Changing it redoes: G-code only
  • PrintPilot class: read (not in the catalog: never written)

pressure_advance

Pressure advance

  • Type: list of numbers, one per extruder
  • Default: [0.02]
  • Recommended range: 0 to 1.5
  • Orca limits: none to 2
  • Used only when: Enable pressure advance (enable_pressure_advance) is on
  • Changing it redoes: G-code only
  • PrintPilot class: guarded (always shown in the diff; approval needed outside the filament range; refused past printer limits)
  • Effect: higher: Higher pressure advance sharpens corners and can gap them if too high. lower: Lower pressure advance rounds and bulges corners

volumetric_speed_coefficients

Volumetric speed coefficients

  • Type: list of strings, one per extruder
  • Default: [""]
  • Changing it redoes: G-code only
  • PrintPilot class: read (not in the catalog: never written)