---
tag: m0302
title: Cold Extrude
brief: Set minimum extrusion temperature, allow cold extrusion.
author: thinkyhead

requires: PREVENT_COLD_EXTRUSION
group: thermal

codes: [ M302 ]

notes: Requires `PREVENT_COLD_EXTRUSION`.

parameters:
  -
    tag: S
    optional: true
    description: Minimum temperature for safe extrusion
    values:
      -
        tag: temp
        type: float
  -
    tag: P
    optional: true
    description: Flag to allow extrusion at any temperature
    values:
      -
        tag: flag
        type: bool

examples:
  -
    pre: Some common uses...
    code: |
      M302         ; report current cold extrusion state
      M302 P0      ; enable cold extrusion checking
      M302 P1      ; disable cold extrusion checking
      M302 S0      ; always allow extrusion (disable checking)
      M302 S170    ; only allow extrusion above 170
      M302 S170 P1 ; set min extrude temp to 170 but leave disabled

---

Set the minimum extrusion temperature, potentially allowing E movement at temperatures below the melting point of the material.