(M453: Edge -Z)
G10 L81 P103 Q5023 (Store Z position in reg 103)
(Z Minus)
M288 P4 L1 (Axis Z-)
G90 G10 L70 P#5220 Z0 (Assign Z=0)
G04 P0.2 (Pause)
G91 G0 Z[#25/100] F#23(Rebound)
M109(Sensor Protection)
