M558 - What is 'Dive Height'?

SnowCrash

Hi,

The gcode wiki specifies a 'Dive Height' parameter (Hnnn), but I couldn't find an explanation about what this parameter does or how it works.

Could anyone please clarify?

Many thanks,
SnowCrash

T3P3Tony

The Dive height is the height above the (assumed) height of the bed that a probing move will start:

The H parameter defines the Z probe dive height, which is the height above the trigger height from which probing starts. The default is 3mm or 5mm depending on firmware version. You may wish to increase it during initial calibration.

https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Z_probe_section

I have updated the gcode page as well to explain that.

dc42

It's also the maximum depth below the assumed position of the bed that probing will go to try to find the bed.

SnowCrash

@t3p3tony said in M558 - What is 'Dive Height'?:

The Dive height is the height above the (assumed) height of the bed that a probing move will start:

The H parameter defines the Z probe dive height, which is the height above the trigger height from which probing starts. The default is 3mm or 5mm depending on firmware version. You may wish to increase it during initial calibration.

https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Z_probe_section

I have updated the gcode page as well to explain that.

@dc42 said in M558 - What is 'Dive Height'?:

It's also the maximum depth below the assumed position of the bed that probing will go to try to find the bed.

Thanks for the clarifications, @T3P3Tony & @dc42!