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G38.2-G38.5 - Probe target

1.1.0 calibration Probe towards (or away from) a workpiece G38_PROBE_TARGET

Description

The Probe Target commands are used to probe towards (or away from) a workpiece to determine its precise position. You might, for example, use a grounded metal workpiece, with a metal probe spliced into the bed probe circuit.

  • G38.2 probes towards a target and stops on contact, signaling an error if it reaches the target position without triggering the probe.
  • G38.3 probes towards a target and stops on contact. No error is given if it fails to trigger the probe.
  • G38.4 probes away from a target and stops on contact break. An error is signaled if the target position is reached without triggering the probe.
  • G38.5 probes away from a target and stops on contact break. No error is given if it fails to trigger the probe.

These commands use the current homing feedrate, by default.

Notes

These commands require G38_PROBE_TARGET and a defined probe.

G38.4 and G38.5 are only available with the G38_PROBE_AWAY option.

Usage

G38.2 [F<rate>] [X<pos>] [Y<pos>] [Z<pos>]

Parameters

[F<rate>]

Feedrate for the move

[X<pos>]

Target X

[Y<pos>]

Target Y

[Z<pos>]

Target Z