'Print area only' bed mesh with Superslicer, mostly done

General Discussion
1

This is what I came up with, it works, but cant work out how to set 3,3 grid, anyone?

Superslicer → Printer Settings → Custom G-code

;klipper macro
;--------------------------------------------------------------
START_PRINT BED={first_layer_bed_temperature} EXTRUDER={first_layer_temperature} FLOW={extrusion_multiplier} XMIN={bounding_box[0]} YMIN={bounding_box[1]} XMAX={bounding_box[2]} YMAX={bounding_box[3]}
;--------------------------------------------------------------

The Klipper Macro follows, its my setup so dont just copy paste it, use it for reference only

[gcode_macro START_PRINT]

gcode:

    {% set BED = params.BED|default(0)|float %}

    {% set EXTRUDER = params.EXTRUDER|default(0)|float %}

    {% set FLOW = params.FLOW|default(100)|float * 100 %}

    {action_respond_info( "BED %dC, " "EXT %dC, " "FLOW %d%%" % ( BED, EXTRUDER, FLOW) )}

    {% set XMIN = params.XMIN|default(10)|int %}

    {% set YMIN = params.YMIN|default(10)|int %}    

    {% set XMAX = params.XMAX|default(238)|int %}

    {% set YMAX = params.YMAX|default(260)|int %}

    {action_respond_info( "XMIN %d, YMIN %d, XMAX %d, YMAX %d\n" % ( XMIN, YMIN, XMAX, YMAX) )}

    M104 S180 ;preheat hotend, not enough to oooz

    # Start bed heating

    M140 S{BED}

    M105

    M190 S{BED}

    # Start extruder heating    

    M104 S{EXTRUDER}

    M105

    M109 S{EXTRUDER}

    M82 ;absolute extrusion mode

    M220 S100    ;Set Feedrate

    M221 S{FLOW} ;Set Flowrate

    #Home and probe only print area with 5,5 grid set in printer.cfg

    #have not worked out how to get 3,3 working for smaller prints

    G28

    BED_MESH_CALIBRATE MESH_MIN={XMIN-5},{YMIN-5} MESH_MAX={XMAX+5},{YMAX+5} 

    G92 E0 ;Reset Extruder

    G1 Z2.0 F3000 ;Move Z Axis up

    G1 X10 Y10 Z0.28 F5000.0 ;Move to start position

    G1 X240 Y10 Z0.28 F1500.0 E19 ;Draw the first line

    G1 X240 Y9 Z0.28 F5000.0 ;Move to side a little

    G1 X10 Y9 Z0.28 F1500.0 E38 ;Draw the second line

    G1 E37.8

    G92 E0 ;Reset Extruder

    G1 Z1 F3000 ;Move Z Axis up

If anyone knows how to set 3,3 grid, would appreciate please, thanks

2

BED_MESH_CALIBRATE MESH_MIN={XMIN-5},{YMIN-5} MESH_MAX={XMAX+5},{YMAX+5} PROBE_COUNT=3,3 relative_reference_index=5