How to automatically cancel job/routine when G29 fails?

oozeBot

Background: Our printers only probe where needed for the active job.

Issue: We just had a printer fail to complete the mesh bed probing (G29 S0) portion of our startup routine. When that happened, the error was logged to the console, but the job continued on as if nothing happened..

Question: How can we programmatically verify G29 S0 completes successfully and, if not, immediately pause the job to warn the user?

Firmware: RepRapFirmware for Duet 3 MB6HC 3.4.4

OwenD

@oozeBot
You can check the result returned from each command
https://docs.duet3d.com/User_manual/Reference/Gcode_meta_commands#named-constants

In my mesh.g I use it to check the validity of the M557 values.
I'm not 100% sure what it would return if a single point in a mesh failed

e.g

G30
if result !=0
	abort "Error during probing - print cancelled"

oozeBot

@OwenD perfect! I had it in my head that wouldn’t work outside of specific macros.. I’ll give this a go and report back on this thread if it for sure works for future reference.

Thanks!

oozeBot

Confirmed this works:

G29 S0
if result !=0
	abort "Probing Error - canceling job"