How to set Z-probe direction (not in plugin)

[cnconst]

Hi

I have my Probe correctly working in diag, but when i hit "prob" on the jog it goes wrong Z direction .
How to set the direction of the Z probe (not in the probe plugin but the normal probe) ?


Thanks

[cncdrive]

The probe is programmed with G31 and you programming the endpoint with that g-code.
E.g. G31 Z-100 , so then if your current Z coordinate is 0 then the Z will move downwards and if your Z coordinate is e.g. -200 then it will go upwards.

[sabrina23]

If you're using a custom macro or button for probing, check the G31 command in your macro. The standard format is:

Code: Select all

G31 Z-10 F100


If your Z-axis is moving up instead of down, make sure the `Z` value is negative (`Z-10`), which tells it to probe down.
If it’s still wrong, check your machine's Z-axis direction settings.
Retro Bowl

[alexscott]

To set the correct Z probe direction, check your CNC control software's configuration for any options to reverse the Z axis direction, and ensure that the probe settings are not conflicting. Additionally, verify that your wiring is correct, as reversing connections can also affect the probe's behavior. If the issue persists, consult the firmware documentation for relevant parameters.