Z bed error reporting

[ozgiac]

I am trying to figure out how to report the z bed error amount in mm to the Console only.

Ie If i do a Z home, then my Z is set to 0.

I would like to know if its possible i can manually run a code to prob a position giving co-ordinates X,Y and report only on Console the difference in mm.

do not reset Z, just show me the result either in console or pop up windows from webserver or on PanelDue display, or both..

Thanks in advance.

[dc42]

Place the nozzle about 5mm above the centre of the bed at the desired XY coordinates, then run G30 S-1. Compare the value it returns with the G31 Z parameter you are using.