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---
tag: m0871
title: Probe temperature config
brief: Configure probe temperature compensation
author: tompe-proj
contrib: thinkyhead
requires: PROBE_TEMP_COMPENSATION
experimental: true
group: calibration
codes: [ M871 ]
related: [ G76, M192 ]
notes:
- Requires `PROBE_TEMP_COMPENSATION`.
- Values at index zero are constant (zero).
- Compensation values are stored in µm (micrometers).
- Use [`M500`](/docs/gcode/M500.html) to save the values to EEPROM.
parameters:
-
tag: V
optional: true
description: Z adjustment value, in micrometers.
values:
-
tag: µm
type: int
-
tag: I
optional: true
description: Index at which to store the given Z adjustment value.
values:
-
tag: flag
type: bool
-
tag: B
optional: true
description: Store the value `V` as the Z adjustment at index `I` for the Bed.
values:
-
tag: flag
type: bool
-
tag: P
optional: true
description: Store the value `V` as the Z adjustment at index `I` for the Probe.
values:
-
tag: flag
type: bool
-
tag: E
optional: true
description: Store the value `V` as the Z adjustment at index `I` for the Extruder.
values:
-
tag: flag
type: bool
-
tag: R
optional: true
description: Reset all Z adjustment values to factory defaults (zero).
values:
-
tag: flag
type: bool
example:
-
code:
- M871 ; print current values
- M871 R ; reset all values factory default (zero, effectively disabling compensation)
- M871 P I1 V-5 ; set probe compensation value at index 1 to -5µm
- M871 B I2 V20 ; set bed compensation value at index 2 to 20µm
- M871 E I4 V-13 ; set extruder compensation value at index 4 to -13µm
---
Read/write probe temperature compensation values. Values for bed and/or probe can be calibrated using the [`G76`](/docs/gcode/G076.html) command.
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