Mesh grid (557) restored to old value after homing Z

[ernstc]

My configuration is Duet3 + Raspberry + RRF 3.0 (2020-01-03b3).

In the beginning my mesh grid settings were:
M557 X38:268 Y61:254 S40.0:40.0

I changed the mesh grid in config.g as below:
M557 X38:268 Y61:254 S80.0:80.0

The problem is that when I home Z, the mesh grid is restored to the old values with spacing 40.0 instead of 80.0. I can't find any *.g file with an M557 command.

Where are stored configuration files in the SD of the Rasperry? Can't find them either navigating in the file system.

Thanks.

[gtj0]

@ernstc They're in /opt/dsf/sd.

You may want to consider upgrading to the latest versions. There have been LOTS of changes/fixes since the version you're running.

[dc42]

@ernstc said in Mesh grid (557) restored to old value after homing Z:

The problem is that when I home Z, the mesh grid is restored to the old values with spacing 40.0 instead of 80.0. I can't find any *.g file with an M557 command.

Do you have a G29 S1 command in homez.g to load an existing height map? If so, that will reset the grid to match the one in the height map.

[ernstc]

@dc42 Yes, I have. Thanks!

So, the solution is to change the grid and then execute the mesh bed probing, so that the height map file is updated.