---
tag: m0204
title: Set Starting Acceleration
brief: Set the starting acceleration for moves by type.
author: thinkyhead

group: motion

codes: [ M204 ]

notes:
  - View the current setting with [`M503`](/docs/gcode/M503.html).
  - If `EEPROM_SETTINGS` is enabled, these are saved with [`M500`](/docs/gcode/M500.html), loaded with [`M501`](/docs/gcode/M501.html), and reset with [`M502`](/docs/gcode/M502.html).
  - Legacy `M204 S<accel>` is deprecated. Use separate paremeters `M204 P<accel> T<accel>` instead.

parameters:
  -
    tag: P
    optional: true
    description: Printing acceleration. Used for moves that include extrusion (i.e., which employ the current tool).
    values:
      -
        tag: accel
        type: float
  -
    tag: R
    optional: true
    description: Retract acceleration. Used for extruder retraction moves.
    values:
      -
        tag: accel
        type: float
  -
    tag: T
    optional: true
    description: Travel acceleration. Used for moves that include no extrusion.
    values:
      -
        tag: accel
        type: float
  -
    tag: S
    optional: true
    description: Legacy parameter for move acceleration. Set both printing and travel acceleration.
    values:
      -
        tag: accel
        type: float

videos:
  - Mnvj6xCzikM

examples:
  -
    pre: Set acceleration for printing moves to 2400mm/s/s
    code: M204 P2400
---

Set the preferred starting acceleration (in units/s/s) for moves of different types. Send `M204` with no parameters to get current settings.