flexi-bot/docs/marlin/_gcode/M218.md
2023-09-05 20:38:49 +02:00

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---
tag: m0218
title: Set Hotend Offset
brief: Set the offset of a hotend (from hotend 0).
author: thinkyhead
requires: EXTRUDERS>1
group: calibration
codes: [ M218 ]
notes: |
- Requires 2 or more nozzles.
- The default hotend offsets are set with `HOTEND_OFFSET_[XYZ]`.
- Z hotend offset only available with `DUAL_X_CARRIAGE` or `SWITCHING_NOZZLE`.
- View current hotend offsets with [`M503`](/docs/gcode/M503.html).
- If `EEPROM_SETTINGS` is enabled, these offsets are saved with [`M500`](/docs/gcode/M500.html), loaded with [`M501`](/docs/gcode/M501.html), and reset with [`M502`](/docs/gcode/M502.html).
parameters:
-
tag: T
optional: true
description: Hotend index. Active extruder by default.
values:
-
tag: index
type: int
-
tag: X
optional: true
description: Hotend X offset
values:
-
tag: offset
type: float
-
tag: Y
optional: true
description: Hotend Y offset
values:
-
tag: offset
type: float
-
tag: Z
optional: true
description: Hotend Z offset. Requires `DUAL_X_CARRIAGE` or `SWITCHING_NOZZLE`.
values:
-
tag: offset
type: float
examples:
---
To keep nozzles aligned to the work area between tool-changes, the firmware needs to know how they relate to each other.