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G38.2 Probe toward part, error on miss
LinuxCNC Tormach G-code · Mill and lathe
Moves the probe toward the target and stops when the probe trips. Stops the program with an error if it never trips.
Format
G38.2 X Y Z F
Addresses
| Address | What it does |
|---|---|
X Y Z | Target point the probe moves toward |
F | Probe feed rate |
How it works
Non modal for the move.
Example program
G20 G90 G49 (INCH, ABSOLUTE)
T99 M6 G43 (PROBE)
G0 X1 Y1 Z0.5 (OVER THE PART)
G38.2 Z-0.5 F5 (PROBE DOWN)
…
T99 M6 G43 (PROBE)
G0 X1 Y1 Z0.5 (OVER THE PART)
G38.2 Z-0.5 F5 (PROBE DOWN)
…
The full 6-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Results go to parameters 5061 to 5069. Parameter 5070 is 1 when contact changed, 0 when not.
- Error if cutter compensation is on, F is zero or the probe is already tripped at the start.
- Probe slow. Back off and repeat at a slower feed for accuracy.
Related codes
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