The Probe Target commands are used to probe towards a workpiece and 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.
These commands use the current homing feedrate, by default.
These commands require G38_PROBE_TARGET and a defined probe.
G38.2 [F<rate>] [X<pos>] [Y<pos>] [Z<pos>]
Feedrate for the move