---
tag: m0221
title: Set Flow Percentage
brief: Set the flow percentage, which applies to all E moves.
author: thinkyhead

group: motion

codes: [ M221 ]

parameters:

- tag: S
  optional: false
  description: Flow percentage
  values:
  - tag: percent
    type: int

- tag: T
  optional: true
  description: Target extruder (requires multi-extruder). Default is the active extruder.
  values:
  - tag: index
    type: int

example:
- pre: Set the flow rate to 150%.
  code: M221 S150

---

Set the flow percentage, which applies to all E moves added to the planner.
