knowledge → vomit → wiki

• Load Filament (bright color recommended)
• Find out M92 E esteps with M503
• From base of extruder, mark point at 120mm/12cm
• Set local coords and extrude 100mm@1mm/s

  M83         ; E relative mode
  G1 E100 F60 ; Extrude 100mm @ 1mm/s (60mm/min)
  

• When extrusion finished, measure from base to mark.
• Calculate new esteps using previous measurement $x$: $E_{new} = E_{orig} \cdot \frac{100}{120-x}$
• Set new value with M92 (ie. M92 E421).

G28                        ; home
G0 X[x offset] Y[y offset] ; move to proper bed origin
M428                       ; set current pos as bed origin
M500                       ; write to EEPROM

Kinda nice compared to Bilinear, but its poorly explained… Firstly, manually level. Next:

G28        ; home
G29 P1     ; auto probe
G29 P3     ; interp. pts
G29 F10.0  ; set fade height to 10mm
G29 S0     ; save mesh in slot 0
M500       ; save to EEPROM

Then for start gcode excerpt

G28          ; home all axes
G29 L0       ; load mesh slot 0 (enables UBL so G29 A is redundant)
G29 J2       ; 4-pt co-planar mesh align level