Is there a parameter that can be used in start g code to know the min/max x/y of object(s) being printed? (probe where printing)

[sn2006gy 0]

I'd like to set my Mesh measuring to be slightly larger than print area (including skirt) and I can't seem to find if cura passes and max x / y into what i can consume in start g code area to be able to parameterize my mesh to only mesh the printed area.

 

Would like to do something like

 

M557 X{first_layer_print_min[0]}:{first_layer_print_max[0]} Y{first_layer_print_min[1]}:{first_layer_print_max[1]} S8

 

Edited November 20, 2021 by sn2006gy

[sn2006gy 0]

I see the gcode has values in comments - would be nice to just find where to pass these as parameters

 

[FR] Replacement patterns for print area · Issue #10884 · Ultimaker/Cura (github.com)

;FLAVOR:RepRap
;TIME:1813
;Filament used: 2.3164m
;Layer height: 0.28
;MINX:124.335
;MINY:124.335
;MINZ:0.24
;MAXX:175.665
;MAXY:175.664
;MAXZ:21.45

 

[Cuq 205]

Using a postprocessing script : https://forum.duet3d.com/topic/14994/f-r-auto-define-m557-mesh-bounds-from-gcode/5?_=1637506151764

[ahoeben 1,956]

To answer the question: no, there isn't. The replacement patterns in the start/end gcode snippets are filled in before the model is sliced. The (exact) min/max values including skirts/brims/rafts and horizontal expansion is only known after slicing.

[sn2006gy 0]

Tanks all! Post processing script works beautifully!