93 lines
1.9 KiB
Markdown
93 lines
1.9 KiB
Markdown
---
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tag: m0421
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title: Set Mesh Value
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brief: Set a single mesh Z height
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author: thinkyhead
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requires: AUTO_BED_LEVELING_(BILINEAR|UBL)|MESH_BED_LEVELING
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group: motion
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related: [ G29, M420 ]
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codes: [ M421 ]
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notes:
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parameters:
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-
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tag: I
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optional: true
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description: X index into the mesh array
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values:
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-
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type: int
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-
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tag: J
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optional: true
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description: Y index into the mesh array
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values:
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-
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type: int
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-
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tag: X
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optional: true
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description: X position (which should be very close to a grid line) (`MESH_BED_LEVELING` only)
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values:
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-
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tag: linear
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type: float
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-
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tag: Y
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optional: true
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description: Y position (which should be very close to a grid line) (`MESH_BED_LEVELING` only)
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values:
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-
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tag: linear
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type: float
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-
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tag: Z
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optional: true
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description: The new Z value to set
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values:
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-
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tag: linear
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type: float
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-
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tag: Q
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optional: true
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description: A value to add to the existing Z value
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values:
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-
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tag: linear
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type: float
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-
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tag: C
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optional: true
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description: Set the mesh point closest to the current nozzle position (`AUTO_BED_LEVELING_UBL` only)
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values:
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-
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type: bool
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-
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tag: N
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optional: true
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description: Set the mesh point to undefined (`AUTO_BED_LEVELING_UBL` only)
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values:
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-
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type: bool
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examples:
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-
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pre: Set the Z height in the middle of a 5x5 grid
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code: M421 I2 J2 Z-0.05
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-
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pre: Set the same Z height using XY
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code: M421 X100 Y100 Z-0.05
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-
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pre: Adjust the mesh point by -0.01
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code: M421 I2 J2 Q-0.01
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---
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This command is used to set a single Z value for a mesh point in the stored bed leveling data.
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Allowed forms are `M421 In Jn Zn`, `M421 Xn Yn Zn` (`MESH_BED_LEVELING` only) or `M421 C Zn` (`AUTO_BED_LEVELING_UBL` only).
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