…currently a work in progress…

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• Examples (click to enlarge)
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The gcode z offset is set with the SET_GCODE_OFFSET klipper command and you should read its documentation, at https://www.klipper3d.org/G-Codes.html#set_gcode_offset All other methods of changing the value just equate to this command. You can set it to a absolute value like

SET_GCODE_OFFSET Z=0.075

or adjust it relative to its current value like

SET_GCODE_OFFSET Z_ADJUST=0.3

Fluid provides easy to use controls and displays the current value, live.

Workflows using the Screen can be problematic as proper attention needs to be considered for how this value may be being changed by other controls. It is not displayed live and the value shown can be stale. This can result in issues when it send incremental value changes. Saving it in the Screen's workflows can also trigger changes to other values unintentionally. It's better and easier to change the value in the console or in the Fluid GUI.

No.

At best the paper method will asymptotically approach the thickness of the paper being used. Yet this is an arbitrary value nearly in the ball park of what a typical z offset might be. The z offset we're seeking is filament dependent and will vary by the filament being used. We're seeking a correct affect on the shape of the extrusion's cross section, a “smush”, and that can't be defined by some arbitrary height.

(…work in progress…)

The Elegoo Centauri Carbon has sensors to “set the z offset”, yet it's realistically setting the probe offset.

(…work in progress…)

(…work in progress…)