G29: Bed Leveling (3-Point)

Related codes:

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Описание
Automatic (3-Point) Bed Leveling probes the bed at 3 points and enables bed leveling compensation using a rotation matrix to compensate for bed tilt.
The printer must be homed with before .
Automatic Probing
Using an electronic probe Marlin can probe all three points with a single command. See parameter descriptions and examples below for details.
Manual Probing
Auto Bed Leveling now includes a PROBE_MANUALLY option for systems lacking a probe.
PROBE_MANUALLY adds these parameters to

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:

• Q : Query leveling and
  
  

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  state
• A : Abort current leveling procedure

To do manual probing simply repeat until the procedure is complete.
The first accepts the same parameters , shown in the section below. The exact parameters available will depend on which style of bed leveling is enabled. (Note: UBL parameters are not covered on this page unless they coincide. See the page for a full list of its options.*)
Probing Procedure
Примечание
Any arguments left out of will use your configured defaults.
By default disables bed leveling. Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after .
To save time and machine wear, save your matrix to EEPROM with and in your slicer’s “Starting G-CODE” replace with M420 S1 to enable your last-saved matrix.
Использование
G29 [A<bool>] [C<bool>] [D<bool>] [E<bool>] [J<bool>] [O] [Q<bool>] [V<0-4>]
Параметры
[A<bool>]
Abort leveling procedure in-progress (PROBE_MANUALLY)
[C<bool>]
Create fake points for testing. (DEBUG_LEVELING_FEATURE)
[D<bool>]
Dry-Run mode. Just probe the grid but don’t update the bed leveling data
[E<bool>]

• By default G29 will engage the Z probe, test the bed, then disengage.
• Include “E” to engage/disengage the Z probe for each sample.
• There’s no extra effect if you have a fixed Z probe. (without PROBE_MANUALLY)

[J<bool>]
Jettison the leveling data stored in SRAM and turn off leveling compensation. Data in EEPROM is not affected.
[O]
Optional. If leveling is already enabled then exit without leveling. (1.1.9)
[Q<bool>]
Query the current leveling state (PROBE_MANUALLY, DEBUG_LEVELING_FEATURE)
[V<0-4>]
Set the verbose level
Examples
G29 ; Probe 3 points and compensate