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Custom G-CODE to hit a switch on top of the back-left stepper motor on a Prusa Core One. Parts of the code has been taken from bambooStudio that let the user enable this feature from the UI
;AFTER_LAYER_CHANGE
;[layer_z]
G92 E0 ;Stop extrusion
G1 E-0.7 F1800 ;Retraction
G17
G2 Z{layer_z + 0.4} I0.86 J0.86 P1 F20000 ;Spiral lift a little
G1 X110 Y220 F20000 ;Move to safe pos
G17
G2 Z{layer_z} I0.86 J0.86 P1 F20000
G1 X0 F15000
G4 S0; Wait for move to finish
G1 X5;
G4 P250 ;Wait for the picture to be taken
G92 E0
G1 E0.3 F300 ;Extrude some so we don't leave gaps
G1 X110 F20000 ;Move to the back to continue
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